diff --git a/src/app/core/components/request-access/request-access.component.html b/src/app/core/components/request-access/request-access.component.html
index f8b74ca4b..1791804fc 100644
--- a/src/app/core/components/request-access/request-access.component.html
+++ b/src/app/core/components/request-access/request-access.component.html
@@ -1,35 +1,44 @@
 <section class="container text-center flex flex-column flex-1 my-7 mx-3 p-3 md:p-4">
-  <h2>{{ 'requestAccess.title' | translate }}</h2>
+  <h2>{{ titleTranslation() | translate }}</h2>
 
-  <p class="mt-4">{{ 'requestAccess.message' | translate }}</p>
+  <p class="mt-4">
+    <span [innerHTML]="messageTranslation() | translate"></span>
+    @if (isProjectReadOnly()) {
+      <a class="ml-1 font-bold" [href]="'mailto:' + supportEmail">{{ supportEmail }}</a>
+    }
+  </p>
 
-  <div class="flex flex-column text-left mt-4">
-    <label class="font-bold" for="comment">
-      {{ 'requestAccess.commentLabel' | translate }}
-    </label>
+  @if (!isProjectReadOnly()) {
+    <div class="flex flex-column text-left mt-4">
+      <label class="font-bold" for="comment">
+        {{ 'requestAccess.commentLabel' | translate }}
+      </label>
 
-    <textarea
-      class="comment-input"
-      pTextarea
-      id="comment"
-      [rows]="3"
-      [maxLength]="commentLimit"
-      [(ngModel)]="comment"
-    ></textarea>
-  </div>
+      <textarea
+        class="comment-input"
+        pTextarea
+        id="comment"
+        [rows]="3"
+        [maxLength]="commentLimit"
+        [(ngModel)]="comment"
+      ></textarea>
+    </div>
+  }
 
   <div class="flex align-items-center gap-3 mt-6">
-    <p-button
-      class="w-full"
-      styleClass="w-full"
-      [label]="'requestAccess.requestAccess' | translate"
-      (onClick)="requestAccess()"
-    ></p-button>
+    @if (!isProjectReadOnly()) {
+      <p-button
+        class="w-full"
+        styleClass="w-full"
+        [label]="'requestAccess.requestAccess' | translate"
+        (onClick)="requestAccess()"
+      ></p-button>
+    }
 
     <p-button
       class="w-full"
       styleClass="w-full"
-      severity="secondary"
+      [severity]="isProjectReadOnly() ? 'primary' : 'secondary'"
       [label]="'requestAccess.switchAccount' | translate"
       (onClick)="switchAccount()"
     ></p-button>
diff --git a/src/app/core/components/request-access/request-access.component.spec.ts b/src/app/core/components/request-access/request-access.component.spec.ts
index 8051fd7f9..48a7984a7 100644
--- a/src/app/core/components/request-access/request-access.component.spec.ts
+++ b/src/app/core/components/request-access/request-access.component.spec.ts
@@ -9,6 +9,7 @@ import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute, Router } from '@angular/router';
 
 import { AuthService } from '@core/services/auth.service';
+import { UserSelectors } from '@core/store/user';
 import { InputLimits } from '@osf/shared/constants/input-limits.const';
 import { RequestAccessService } from '@osf/shared/services/request-access.service';
 import { ToastService } from '@osf/shared/services/toast.service';
@@ -18,10 +19,17 @@ import { AuthServiceMock, AuthServiceMockType } from '@testing/providers/auth-se
 import { LoaderServiceMock, provideLoaderServiceMock } from '@testing/providers/loader-service.mock';
 import { ActivatedRouteMockBuilder } from '@testing/providers/route-provider.mock';
 import { RouterMockBuilder, RouterMockType } from '@testing/providers/router-provider.mock';
+import { BaseSetupOverrides, mergeSignalOverrides, provideMockStore } from '@testing/providers/store-provider.mock';
 import { ToastServiceMock, ToastServiceMockType } from '@testing/providers/toast-provider.mock';
 
 import { RequestAccessComponent } from './request-access.component';
 
+interface SetupOverrides extends BaseSetupOverrides {
+  routeId?: string;
+  requestAccessResult?: Observable<void>;
+  requestAccessError?: HttpErrorResponse;
+}
+
 describe('RequestAccessComponent', () => {
   let fixture: ComponentFixture<RequestAccessComponent>;
   let component: RequestAccessComponent;
@@ -31,12 +39,10 @@ describe('RequestAccessComponent', () => {
   let toastServiceMock: ToastServiceMockType;
   let authServiceMock: AuthServiceMockType;
 
-  function setup(overrides?: {
-    routeId?: string;
-    requestAccessResult?: Observable<void>;
-    requestAccessError?: HttpErrorResponse;
-  }) {
+  function setup(overrides?: SetupOverrides) {
     const routeId = overrides?.routeId ?? 'project-1';
+    const defaultSignals = [{ selector: UserSelectors.isProjectReadOnly, value: false }];
+    const signals = mergeSignalOverrides(defaultSignals, overrides?.selectorOverrides ?? []);
     routerMock = RouterMockBuilder.create().withNavigate(vi.fn().mockResolvedValue(true)).build();
     loaderServiceMock = new LoaderServiceMock();
     toastServiceMock = ToastServiceMock.simple();
@@ -60,6 +66,7 @@ describe('RequestAccessComponent', () => {
         MockProvider(RequestAccessService, requestAccessServiceMock),
         MockProvider(ToastService, toastServiceMock),
         MockProvider(AuthService, authServiceMock),
+        provideMockStore({ signals }),
       ],
     });
 
@@ -86,6 +93,23 @@ describe('RequestAccessComponent', () => {
     expect(supportLink.textContent).toContain(component.supportEmail);
   });
 
+  it('should expose title and message translations based on read-only state', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    expect(component.titleTranslation()).toBe('requestAccess.readOnlyTitle');
+    expect(component.messageTranslation()).toBe('requestAccess.messageReadOnly');
+
+    const buttons = fixture.nativeElement.querySelectorAll('p-button');
+    expect(buttons).toHaveLength(1);
+  });
+
+  it('should expose title and message translations based on non-read-only state', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    expect(component.titleTranslation()).toBe('requestAccess.title');
+    expect(component.messageTranslation()).toBe('requestAccess.message');
+    const buttons = fixture.nativeElement.querySelectorAll('p-button');
+    expect(buttons.length).toBe(2);
+  });
+
   it('should request access and handle success flow', () => {
     setup({ routeId: 'project-123' });
     component.comment.set('please grant access');
diff --git a/src/app/core/components/request-access/request-access.component.ts b/src/app/core/components/request-access/request-access.component.ts
index eaa56b861..fe8002095 100644
--- a/src/app/core/components/request-access/request-access.component.ts
+++ b/src/app/core/components/request-access/request-access.component.ts
@@ -1,3 +1,5 @@
+import { select } from '@ngxs/store';
+
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
@@ -6,13 +8,14 @@ import { Textarea } from 'primeng/textarea';
 import { map, of } from 'rxjs';
 
 import { HttpErrorResponse } from '@angular/common/http';
-import { ChangeDetectionStrategy, Component, inject, model } from '@angular/core';
+import { ChangeDetectionStrategy, Component, computed, inject, model } from '@angular/core';
 import { toSignal } from '@angular/core/rxjs-interop';
 import { FormsModule } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 
 import { ENVIRONMENT } from '@core/provider/environment.provider';
 import { AuthService } from '@core/services/auth.service';
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { InputLimits } from '@osf/shared/constants/input-limits.const';
 import { LoaderService } from '@osf/shared/services/loader.service';
 import { RequestAccessService } from '@osf/shared/services/request-access.service';
@@ -41,6 +44,16 @@ export class RequestAccessComponent {
   private readonly toastService = inject(ToastService);
   private readonly authService = inject(AuthService);
 
+  readonly isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
+
+  readonly titleTranslation = computed(() =>
+    this.isProjectReadOnly() ? 'requestAccess.readOnlyTitle' : 'requestAccess.title'
+  );
+
+  readonly messageTranslation = computed(() =>
+    this.isProjectReadOnly() ? 'requestAccess.messageReadOnly' : 'requestAccess.message'
+  );
+
   requestAccess() {
     this.loaderService.show();
     this.requestAccessService.requestAccessToProject(this.id(), this.comment()).subscribe({
diff --git a/src/app/core/store/user/user.selectors.ts b/src/app/core/store/user/user.selectors.ts
index 311d3eec1..f8bf086fb 100644
--- a/src/app/core/store/user/user.selectors.ts
+++ b/src/app/core/store/user/user.selectors.ts
@@ -58,4 +58,14 @@ export class UserSelectors {
   static getActiveFlags(state: UserStateModel): string[] {
     return state.activeFlags || [];
   }
+
+  @Selector([UserState])
+  static isProjectCreationDisabled(state: UserStateModel): boolean {
+    return state.activeFlags?.includes('prevent_project_creation') || false;
+  }
+
+  @Selector([UserState])
+  static isProjectReadOnly(state: UserStateModel): boolean {
+    return state.activeFlags?.includes('project_read_only') || false;
+  }
 }
diff --git a/src/app/features/analytics/components/view-duplicates/view-duplicates.component.html b/src/app/features/analytics/components/view-duplicates/view-duplicates.component.html
index 0b19ebb0f..6e4fbcfae 100644
--- a/src/app/features/analytics/components/view-duplicates/view-duplicates.component.html
+++ b/src/app/features/analytics/components/view-duplicates/view-duplicates.component.html
@@ -2,6 +2,8 @@
   [title]="'project.analytics.kpi.forks' | translate"
   [showButton]="isAuthenticated()"
   [buttonLabel]="'project.overview.actions.forkProjectLabel' | translate"
+  [isButtonDisabled]="preventDuplicateCreation()"
+  [buttonTooltip]="duplicateButtonTooltip() | translate"
   (buttonClick)="handleForkResource()"
 />
 
diff --git a/src/app/features/analytics/components/view-duplicates/view-duplicates.component.spec.ts b/src/app/features/analytics/components/view-duplicates/view-duplicates.component.spec.ts
index 5fc67205b..83d466144 100644
--- a/src/app/features/analytics/components/view-duplicates/view-duplicates.component.spec.ts
+++ b/src/app/features/analytics/components/view-duplicates/view-duplicates.component.spec.ts
@@ -7,6 +7,7 @@ import { of } from 'rxjs';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { ProjectOverviewSelectors } from '@osf/features/project/overview/store';
 import { RegistrySelectors } from '@osf/features/registry/store/registry';
 import { ContributorsListComponent } from '@osf/shared/components/contributors-list/contributors-list.component';
@@ -24,10 +25,14 @@ import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomDialogServiceMockBuilder } from '@testing/providers/custom-dialog-provider.mock';
 import { ActivatedRouteMockBuilder } from '@testing/providers/route-provider.mock';
 import { RouterMockBuilder } from '@testing/providers/router-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { BaseSetupOverrides, mergeSignalOverrides, provideMockStore } from '@testing/providers/store-provider.mock';
 
 import { ViewDuplicatesComponent } from './view-duplicates.component';
 
+interface SetupOverrides extends BaseSetupOverrides {
+  selectors?: any[];
+}
+
 describe('Component: View Duplicates', () => {
   let component: ViewDuplicatesComponent;
   let fixture: ComponentFixture<ViewDuplicatesComponent>;
@@ -35,7 +40,7 @@ describe('Component: View Duplicates', () => {
   let activatedRouteMock: ReturnType<ActivatedRouteMockBuilder['build']>;
   let mockCustomDialogService: ReturnType<CustomDialogServiceMockBuilder['build']>;
 
-  beforeEach(() => {
+  function setup(overrides: SetupOverrides = {}) {
     mockCustomDialogService = CustomDialogServiceMockBuilder.create().build();
     routerMock = RouterMockBuilder.create().build();
     activatedRouteMock = ActivatedRouteMockBuilder.create()
@@ -43,6 +48,18 @@ describe('Component: View Duplicates', () => {
       .withData({ resourceType: ResourceType.Project })
       .build();
 
+    const defaultSelectors = [
+      { selector: DuplicatesSelectors.getDuplicates, value: [] },
+      { selector: DuplicatesSelectors.getDuplicatesLoading, value: false },
+      { selector: DuplicatesSelectors.getDuplicatesTotalCount, value: 0 },
+      { selector: ProjectOverviewSelectors.getProject, value: MOCK_PROJECT_OVERVIEW },
+      { selector: ProjectOverviewSelectors.isProjectAnonymous, value: false },
+      { selector: RegistrySelectors.getRegistry, value: undefined },
+      { selector: RegistrySelectors.isRegistryAnonymous, value: false },
+      { selector: UserSelectors.isProjectCreationDisabled, value: false },
+    ];
+    const signals = mergeSignalOverrides(defaultSelectors, overrides.selectors || []);
+
     TestBed.configureTestingModule({
       imports: [
         ViewDuplicatesComponent,
@@ -58,15 +75,7 @@ describe('Component: View Duplicates', () => {
       providers: [
         provideOSFCore(),
         provideMockStore({
-          signals: [
-            { selector: DuplicatesSelectors.getDuplicates, value: [] },
-            { selector: DuplicatesSelectors.getDuplicatesLoading, value: false },
-            { selector: DuplicatesSelectors.getDuplicatesTotalCount, value: 0 },
-            { selector: ProjectOverviewSelectors.getProject, value: MOCK_PROJECT_OVERVIEW },
-            { selector: ProjectOverviewSelectors.isProjectAnonymous, value: false },
-            { selector: RegistrySelectors.getRegistry, value: undefined },
-            { selector: RegistrySelectors.isRegistryAnonymous, value: false },
-          ],
+          signals,
         }),
         MockProvider(CustomDialogService, mockCustomDialogService),
         MockProvider(Router, routerMock),
@@ -78,13 +87,23 @@ describe('Component: View Duplicates', () => {
     component = fixture.componentInstance;
 
     fixture.detectChanges();
-  });
+  }
 
   it('should create', () => {
+    setup();
     expect(component).toBeTruthy();
   });
 
+  it('should disable fork button and show tooltip when isProjectCreationDisabled is true', () => {
+    setup({
+      selectors: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+    });
+    expect(component.preventDuplicateCreation()).toBe(true);
+    expect(component.duplicateButtonTooltip()).toBe('project.overview.actions.duplicatingProjectsNotAllowed');
+  });
+
   it('should open ForkDialog with width 450px when small and not refresh on failure', () => {
+    setup();
     (component as any).actions = { ...component.actions, getDuplicates: vi.fn() };
 
     const openSpy = vi
@@ -98,12 +117,14 @@ describe('Component: View Duplicates', () => {
   });
 
   it('should update currentPage when page is defined', () => {
+    setup();
     const event: PaginatorState = { page: 1 } as PaginatorState;
     component.onPageChange(event);
     expect(component.currentPage()).toBe(2);
   });
 
   it('should not update currentPage when page is undefined', () => {
+    setup();
     component.currentPage.set(5);
     const event: PaginatorState = { page: undefined } as PaginatorState;
     component.onPageChange(event);
diff --git a/src/app/features/analytics/components/view-duplicates/view-duplicates.component.ts b/src/app/features/analytics/components/view-duplicates/view-duplicates.component.ts
index 458fdb4c6..11ecd3444 100644
--- a/src/app/features/analytics/components/view-duplicates/view-duplicates.component.ts
+++ b/src/app/features/analytics/components/view-duplicates/view-duplicates.component.ts
@@ -77,11 +77,15 @@ export class ViewDuplicatesComponent {
   isDuplicatesLoading = select(DuplicatesSelectors.getDuplicatesLoading);
   totalDuplicates = select(DuplicatesSelectors.getDuplicatesTotalCount);
   isAuthenticated = select(UserSelectors.isAuthenticated);
+  preventDuplicateCreation = select(UserSelectors.isProjectCreationDisabled);
 
   readonly pageSize = 10;
 
   currentPage = signal<number>(1);
   firstIndex = computed(() => (this.currentPage() - 1) * this.pageSize);
+  duplicateButtonTooltip = computed(() =>
+    this.preventDuplicateCreation() ? 'project.overview.actions.duplicatingProjectsNotAllowed' : ''
+  );
 
   readonly forkActionItems = (resourceId: string) => [
     {
diff --git a/src/app/features/collections/components/add-to-collection/add-to-collection.component.html b/src/app/features/collections/components/add-to-collection/add-to-collection.component.html
index 15486dc58..a4cd6f026 100644
--- a/src/app/features/collections/components/add-to-collection/add-to-collection.component.html
+++ b/src/app/features/collections/components/add-to-collection/add-to-collection.component.html
@@ -19,6 +19,7 @@ <h1 class="collections-heading flex align-items-center">{{ collectionProvider()?
             [stepperActiveValue]="stepperActiveValue()"
             [collectionId]="primaryCollectionId() ?? ''"
             [targetStepValue]="AddToCollectionSteps.SelectProject"
+            [isProjectReadOnly]="isProjectReadOnly()"
             (projectSelected)="handleProjectSelected()"
             (stepChange)="handleChangeStep($event)"
           />
@@ -68,7 +69,8 @@ <h1 class="collections-heading flex align-items-center">{{ collectionProvider()?
 
           <p-button
             [label]="(isEditMode() ? 'common.buttons.update' : 'common.buttons.addToCollection') | translate"
-            [disabled]="stepperActiveValue() !== AddToCollectionSteps.Complete"
+            [disabled]="stepperActiveValue() !== AddToCollectionSteps.Complete || isProjectReadOnly()"
+            [pTooltip]="disabledAddButtonTooltip() | translate"
             (click)="handleAddToCollection()"
           />
         </div>
diff --git a/src/app/features/collections/components/add-to-collection/add-to-collection.component.spec.ts b/src/app/features/collections/components/add-to-collection/add-to-collection.component.spec.ts
index 0d7056142..8062f0dde 100644
--- a/src/app/features/collections/components/add-to-collection/add-to-collection.component.spec.ts
+++ b/src/app/features/collections/components/add-to-collection/add-to-collection.component.spec.ts
@@ -50,6 +50,8 @@ const DEFAULT_SIGNALS: SignalOverride[] = [
   { selector: CollectionsSelectors.getRequiredMetadataTemplate, value: null },
   { selector: ProjectsSelectors.getSelectedProject, value: MOCK_PROJECT },
   { selector: UserSelectors.getCurrentUser, value: MOCK_USER },
+  { selector: UserSelectors.getActiveFlags, value: [] },
+  { selector: UserSelectors.isProjectReadOnly, value: false },
   { selector: MetadataSelectors.getCedarRecords, value: [] },
   { selector: AddToCollectionSelectors.getCurrentCollectionSubmission, value: null },
 ];
@@ -331,4 +333,9 @@ describe('AddToCollectionComponent', () => {
     expect(component.allowNavigation()).toBe(true);
     expect(mockRouter.navigate).toHaveBeenCalledWith(['project-1', 'overview']);
   });
+
+  it('should disable the add to collection button if isProjectReadOnly', () => {
+    const { component } = setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    expect(component.disabledAddButtonTooltip()).toBe('common.errorMessages.actionUnavailable');
+  });
 });
diff --git a/src/app/features/collections/components/add-to-collection/add-to-collection.component.ts b/src/app/features/collections/components/add-to-collection/add-to-collection.component.ts
index 7c78df5cb..e9ca8c814 100644
--- a/src/app/features/collections/components/add-to-collection/add-to-collection.component.ts
+++ b/src/app/features/collections/components/add-to-collection/add-to-collection.component.ts
@@ -4,6 +4,7 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Stepper } from 'primeng/stepper';
+import { Tooltip } from 'primeng/tooltip';
 
 import { filter, finalize, map, Observable, of, switchMap } from 'rxjs';
 
@@ -65,6 +66,7 @@ import { SelectProjectStepComponent } from './select-project-step/select-project
     Button,
     Stepper,
     RouterLink,
+    Tooltip,
     TranslatePipe,
     LoadingSpinnerComponent,
     SelectProjectStepComponent,
@@ -100,6 +102,7 @@ export class AddToCollectionComponent implements CanDeactivateComponent {
   selectedProject = select(ProjectsSelectors.getSelectedProject);
   currentUser = select(UserSelectors.getCurrentUser);
   currentCollectionSubmission = select(AddToCollectionSelectors.getCurrentCollectionSubmission);
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
   cedarRecords = select(MetadataSelectors.getCedarRecords);
 
   providerId = signal<string>('');
@@ -117,6 +120,7 @@ export class AddToCollectionComponent implements CanDeactivateComponent {
   isCollectionMetadataDisabled = computed(
     () => !this.selectedProject() || !this.projectMetadataSaved() || !this.projectContributorsSaved()
   );
+  disabledAddButtonTooltip = computed(() => (this.isProjectReadOnly() ? 'common.errorMessages.actionUnavailable' : ''));
   existingCedarRecord = computed<CedarMetadataRecordData | null>(() => {
     const records = this.cedarRecords();
     const templateId = this.requiredMetadataTemplate()?.id;
diff --git a/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.html b/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.html
index ceae12d81..df62da00b 100644
--- a/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.html
+++ b/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.html
@@ -1,4 +1,8 @@
-<p-step-item class="p-4" [value]="targetStepValue()">
+<p-step-item
+  [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
+  class="p-4"
+  [value]="targetStepValue()"
+>
   <p-step [value]="targetStepValue()">
     <ng-template #content>
       <div class="flex flex-column gap-4 w-full">
@@ -28,6 +32,7 @@ <h3>{{ 'collections.addToCollection.selectProject' | translate }}</h3>
           [excludeProjectIds]="excludedProjectIds()"
           [publicOnly]="true"
           [(selectedProject)]="currentSelectedProject"
+          [disabled]="isProjectReadOnly()"
           (projectChange)="handleProjectChange($event)"
           (projectsLoaded)="handleProjectsLoaded($event)"
         />
diff --git a/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.ts b/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.ts
index 7658ab614..5e380ca53 100644
--- a/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.ts
+++ b/src/app/features/collections/components/add-to-collection/select-project-step/select-project-step.component.ts
@@ -4,6 +4,7 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Step, StepItem, StepPanel } from 'primeng/stepper';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, computed, input, output, signal } from '@angular/core';
 
@@ -16,7 +17,7 @@ import { ProjectsSelectors } from '@shared/stores/projects/projects.selectors';
 
 @Component({
   selector: 'osf-select-project-step',
-  imports: [Button, TranslatePipe, ProjectSelectorComponent, Step, StepItem, StepPanel],
+  imports: [Button, Tooltip, TranslatePipe, ProjectSelectorComponent, Step, StepItem, StepPanel],
   templateUrl: './select-project-step.component.html',
   styleUrl: './select-project-step.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -28,6 +29,7 @@ export class SelectProjectStepComponent {
   stepperActiveValue = input.required<number>();
   targetStepValue = input.required<number>();
   collectionId = input.required<string>();
+  isProjectReadOnly = input.required<boolean>();
 
   stepChange = output<number>();
   projectSelected = output<void>();
diff --git a/src/app/features/collections/components/collections-discover/collections-discover.component.html b/src/app/features/collections/components/collections-discover/collections-discover.component.html
index ea5c5cd98..35c0cf3d9 100644
--- a/src/app/features/collections/components/collections-discover/collections-discover.component.html
+++ b/src/app/features/collections/components/collections-discover/collections-discover.component.html
@@ -20,7 +20,12 @@ <h1 class="collections-heading flex align-items-center">{{ collectionProvider()?
         }
       </div>
 
-      <p-button [routerLink]="['../add']" [label]="'common.buttons.addToCollection' | translate" />
+      <p-button
+        [disabled]="disableAddButton()"
+        [pTooltip]="disableAddButtonTooltip() | translate"
+        [routerLink]="['../add']"
+        [label]="'common.buttons.addToCollection' | translate"
+      />
     </div>
 
     <div class="search-input-container">
diff --git a/src/app/features/collections/components/collections-discover/collections-discover.component.spec.ts b/src/app/features/collections/components/collections-discover/collections-discover.component.spec.ts
index 42e4f6c3c..8e03a9d20 100644
--- a/src/app/features/collections/components/collections-discover/collections-discover.component.spec.ts
+++ b/src/app/features/collections/components/collections-discover/collections-discover.component.spec.ts
@@ -8,6 +8,7 @@ import { TestBed } from '@angular/core/testing';
 import { ActivatedRoute } from '@angular/router';
 
 import { ENVIRONMENT } from '@core/provider/environment.provider';
+import { UserSelectors } from '@core/store/user';
 import { GlobalSearchComponent } from '@osf/shared/components/global-search/global-search.component';
 import { LoadingSpinnerComponent } from '@osf/shared/components/loading-spinner/loading-spinner.component';
 import { SearchInputComponent } from '@osf/shared/components/search-input/search-input.component';
@@ -20,7 +21,7 @@ import { MOCK_PROVIDER } from '@testing/mocks/provider.mock';
 import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomDialogServiceMockBuilder } from '@testing/providers/custom-dialog-provider.mock';
 import { ActivatedRouteMockBuilder } from '@testing/providers/route-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { mergeSignalOverrides, provideMockStore } from '@testing/providers/store-provider.mock';
 import { ToastServiceMock } from '@testing/providers/toast-provider.mock';
 
 import { CollectionsDiscoverComponent } from './collections-discover.component';
@@ -76,15 +77,24 @@ const MOCK_COLLECTION_PROVIDER_WITH_TEMPLATE = {
 
 interface SetupOptions {
   provider?: typeof MOCK_COLLECTION_PROVIDER | typeof MOCK_COLLECTION_PROVIDER_WITH_TEMPLATE;
+  selectorOverrides?: { selector: any; value: any }[];
 }
 
 function setup(options: SetupOptions = {}) {
-  const { provider = MOCK_COLLECTION_PROVIDER } = options;
+  const { provider = MOCK_COLLECTION_PROVIDER, selectorOverrides = [] } = options;
 
   const toastServiceMock = ToastServiceMock.simple();
   const mockCustomDialogService = CustomDialogServiceMockBuilder.create().build();
   const mockRoute = ActivatedRouteMockBuilder.create().withParams({ providerId: 'provider-1' }).build();
 
+  const defaultSignals = [
+    { selector: CollectionsSelectors.getCollectionProvider, value: provider },
+    { selector: CollectionsSelectors.getCollectionProviderLoading, value: false },
+    { selector: UserSelectors.isProjectReadOnly, value: false },
+  ];
+
+  const signals = mergeSignalOverrides(defaultSignals, selectorOverrides || []);
+
   TestBed.configureTestingModule({
     imports: [
       CollectionsDiscoverComponent,
@@ -97,10 +107,7 @@ function setup(options: SetupOptions = {}) {
       MockProvider(CustomDialogService, mockCustomDialogService),
       MockProvider(ActivatedRoute, mockRoute),
       provideMockStore({
-        signals: [
-          { selector: CollectionsSelectors.getCollectionProvider, value: provider },
-          { selector: CollectionsSelectors.getCollectionProviderLoading, value: false },
-        ],
+        signals,
       }),
     ],
   });
@@ -161,4 +168,9 @@ describe('CollectionsDiscoverComponent', () => {
     const el = fixture.nativeElement as HTMLElement;
     expect(el.querySelector('osf-global-search')).toBeTruthy();
   });
+
+  it('should disable add button when user has isProjectReadOnly', () => {
+    const { component } = setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    expect(component.disableAddButtonTooltip()).toBe('common.errorMessages.actionUnavailable');
+  });
 });
diff --git a/src/app/features/collections/components/collections-discover/collections-discover.component.ts b/src/app/features/collections/components/collections-discover/collections-discover.component.ts
index 39fc8245d..dfbff4975 100644
--- a/src/app/features/collections/components/collections-discover/collections-discover.component.ts
+++ b/src/app/features/collections/components/collections-discover/collections-discover.component.ts
@@ -3,6 +3,7 @@ import { createDispatchMap, select } from '@ngxs/store';
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
+import { Tooltip } from 'primeng/tooltip';
 
 import { isPlatformBrowser } from '@angular/common';
 import {
@@ -18,6 +19,7 @@ import {
 import { FormControl } from '@angular/forms';
 import { ActivatedRoute, Router, RouterLink } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { GlobalSearchComponent } from '@osf/shared/components/global-search/global-search.component';
 import { LoadingSpinnerComponent } from '@osf/shared/components/loading-spinner/loading-spinner.component';
 import { SearchInputComponent } from '@osf/shared/components/search-input/search-input.component';
@@ -32,7 +34,15 @@ import { CollectionsHelpDialogComponent } from '../collections-help-dialog/colle
 
 @Component({
   selector: 'osf-collections-discover',
-  imports: [Button, RouterLink, SearchInputComponent, GlobalSearchComponent, LoadingSpinnerComponent, TranslatePipe],
+  imports: [
+    Button,
+    RouterLink,
+    SearchInputComponent,
+    GlobalSearchComponent,
+    LoadingSpinnerComponent,
+    Tooltip,
+    TranslatePipe,
+  ],
   templateUrl: './collections-discover.component.html',
   styleUrl: './collections-discover.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -53,8 +63,10 @@ export class CollectionsDiscoverComponent {
 
   collectionProvider = select(CollectionsSelectors.getCollectionProvider);
   isProviderLoading = select(CollectionsSelectors.getCollectionProviderLoading);
+  disableAddButton = select(UserSelectors.isProjectReadOnly);
 
   primaryCollectionId = computed(() => this.collectionProvider()?.primaryCollection?.id);
+  disableAddButtonTooltip = computed(() => (this.disableAddButton() ? 'common.errorMessages.actionUnavailable' : ''));
 
   actions = createDispatchMap({
     getCollectionProvider: GetCollectionProvider,
diff --git a/src/app/features/contributors/contributors.component.html b/src/app/features/contributors/contributors.component.html
index fbcd27799..a25969495 100644
--- a/src/app/features/contributors/contributors.component.html
+++ b/src/app/features/contributors/contributors.component.html
@@ -4,8 +4,9 @@ <h1 class="py-5 px-3 md:px-5 xl:px-4">{{ 'navigation.contributors' | translate }
   @if (hasAdminAccess()) {
     <p-button
       [label]="'project.contributors.addContributor' | translate"
-      [disabled]="isContributorsLoading()"
+      [disabled]="disableAddButton()"
       (onClick)="openAddContributorDialog()"
+      [pTooltip]="(disableAddButton() ? 'common.errorMessages.actionUnavailable' : '') | translate"
     ></p-button>
   }
 
diff --git a/src/app/features/contributors/contributors.component.spec.ts b/src/app/features/contributors/contributors.component.spec.ts
index 37e11e236..0e3da7e90 100644
--- a/src/app/features/contributors/contributors.component.spec.ts
+++ b/src/app/features/contributors/contributors.component.spec.ts
@@ -78,6 +78,7 @@ describe('ContributorsComponent', () => {
     { selector: UserSelectors.getCurrentUser, value: { id: 'user-1' } },
     { selector: ContributorsSelectors.getContributorsPageSize, value: 10 },
     { selector: ContributorsSelectors.isContributorsLoadingMore, value: false },
+    { selector: UserSelectors.isProjectReadOnly, value: false },
   ];
 
   function setup(overrides: BaseSetupOverrides = {}) {
@@ -243,4 +244,46 @@ describe('ContributorsComponent', () => {
 
     expect(store.dispatch).toHaveBeenCalledWith(new ResetContributorsState());
   });
+
+  it('should disable add contributor button when loading, read-only, or no admin access', () => {
+    setup({
+      routeParams: { id: 'resource-id' },
+      selectorOverrides: [
+        { selector: ContributorsSelectors.isContributorsLoading, value: true },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: true },
+      ],
+    });
+    expect(component.disableAddButton()).toBe(true);
+
+    setup({
+      routeParams: { id: 'resource-id' },
+      selectorOverrides: [
+        { selector: ContributorsSelectors.isContributorsLoading, value: false },
+        { selector: UserSelectors.isProjectReadOnly, value: true },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: true },
+      ],
+    });
+    expect(component.disableAddButton()).toBe(true);
+
+    setup({
+      routeParams: { id: 'resource-id' },
+      selectorOverrides: [
+        { selector: ContributorsSelectors.isContributorsLoading, value: false },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: false },
+      ],
+    });
+    expect(component.disableAddButton()).toBe(true);
+
+    setup({
+      routeParams: { id: 'resource-id' },
+      selectorOverrides: [
+        { selector: ContributorsSelectors.isContributorsLoading, value: false },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: true },
+      ],
+    });
+    expect(component.disableAddButton()).toBe(false);
+  });
 });
diff --git a/src/app/features/contributors/contributors.component.ts b/src/app/features/contributors/contributors.component.ts
index 2fab14f2c..6618e7101 100644
--- a/src/app/features/contributors/contributors.component.ts
+++ b/src/app/features/contributors/contributors.component.ts
@@ -5,6 +5,7 @@ import { TranslatePipe } from '@ngx-translate/core';
 import { Button } from 'primeng/button';
 import { Select } from 'primeng/select';
 import { TableModule } from 'primeng/table';
+import { Tooltip } from 'primeng/tooltip';
 
 import { debounceTime, distinctUntilChanged, filter, map, of, switchMap } from 'rxjs';
 
@@ -94,6 +95,7 @@ import { ResourceInfoModel } from './models';
     RequestAccessTableComponent,
     ViewOnlyTableComponent,
     TranslatePipe,
+    Tooltip,
   ],
   templateUrl: './contributors.component.html',
   styleUrl: './contributors.component.scss',
@@ -138,6 +140,7 @@ export class ContributorsComponent implements OnInit, OnDestroy {
   readonly hasAdminAccess = select(CurrentResourceSelectors.hasResourceAdminAccess);
   readonly resourceAccessRequestEnabled = select(CurrentResourceSelectors.resourceAccessRequestEnabled);
   readonly currentUser = select(UserSelectors.getCurrentUser);
+  readonly isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
 
   readonly tableParams = computed<TableParameters>(() => ({
     ...DEFAULT_TABLE_PARAMS,
@@ -148,6 +151,7 @@ export class ContributorsComponent implements OnInit, OnDestroy {
     rows: this.pageSize(),
   }));
 
+  disableAddButton = computed(() => this.isContributorsLoading() || this.isProjectReadOnly() || !this.hasAdminAccess());
   canCreateViewLink = computed(() => !!this.resourceDetails() && !!this.resourceId());
   searchPlaceholder = computed(() =>
     this.resourceType() === ResourceType.Project
diff --git a/src/app/features/files/components/files-selection-actions/files-selection-actions.component.html b/src/app/features/files/components/files-selection-actions/files-selection-actions.component.html
index c29b33428..a63f8511b 100644
--- a/src/app/features/files/components/files-selection-actions/files-selection-actions.component.html
+++ b/src/app/features/files/components/files-selection-actions/files-selection-actions.component.html
@@ -18,6 +18,8 @@
       <div class="flex gap-2 ml-auto">
         @if (canUpdateFiles()) {
           <p-button
+            [disabled]="isProjectReadOnly()"
+            [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
             icon="fas fa-arrows-alt"
             outlined
             raised
@@ -27,6 +29,8 @@
         }
 
         <p-button
+          [disabled]="isProjectReadOnly()"
+          [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
           icon="fas fa-copy"
           severity="success"
           outlined
@@ -36,6 +40,8 @@
         />
         @if (canUpdateFiles()) {
           <p-button
+            [disabled]="isProjectReadOnly()"
+            [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
             icon="fas fa-trash"
             severity="danger"
             outlined
diff --git a/src/app/features/files/components/files-selection-actions/files-selection-actions.component.spec.ts b/src/app/features/files/components/files-selection-actions/files-selection-actions.component.spec.ts
index bcd9803d2..9f869437d 100644
--- a/src/app/features/files/components/files-selection-actions/files-selection-actions.component.spec.ts
+++ b/src/app/features/files/components/files-selection-actions/files-selection-actions.component.spec.ts
@@ -27,6 +27,7 @@ describe('FilesSelectionActionsComponent', () => {
     expect(component.selectedFilesCount()).toBe(0);
     expect(component.canUpdateFiles()).toBe(true);
     expect(component.hasViewOnly()).toBe(false);
+    expect(component.isProjectReadOnly()).toBe(false);
   });
 
   it('should update selected files count input', () => {
@@ -50,7 +51,14 @@ describe('FilesSelectionActionsComponent', () => {
     expect(component.hasViewOnly()).toBe(true);
   });
 
-  it('should emit copySelected output', () => {
+  it('should handle isProjectReadOnly input', () => {
+    fixture.componentRef.setInput('isProjectReadOnly', true);
+    fixture.detectChanges();
+
+    expect(component.isProjectReadOnly()).toBe(true);
+  });
+
+  it('should emit copySelected event', () => {
     const copySelectedSpy = vi.spyOn(component.copySelected, 'emit');
 
     component.copySelected.emit();
diff --git a/src/app/features/files/components/files-selection-actions/files-selection-actions.component.ts b/src/app/features/files/components/files-selection-actions/files-selection-actions.component.ts
index 54f281165..2d48328b4 100644
--- a/src/app/features/files/components/files-selection-actions/files-selection-actions.component.ts
+++ b/src/app/features/files/components/files-selection-actions/files-selection-actions.component.ts
@@ -1,12 +1,13 @@
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
 @Component({
   selector: 'osf-files-selection-actions',
-  imports: [Button, TranslatePipe],
+  imports: [Button, Tooltip, TranslatePipe],
   templateUrl: './files-selection-actions.component.html',
   styleUrl: './files-selection-actions.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -15,6 +16,7 @@ export class FilesSelectionActionsComponent {
   selectedFilesCount = input<number>(0);
   canUpdateFiles = input<boolean>(true);
   hasViewOnly = input<boolean>(false);
+  isProjectReadOnly = input<boolean>(false);
   copySelected = output<void>();
   moveSelected = output<void>();
   deleteSelected = output<void>();
diff --git a/src/app/features/files/pages/files/files.component.html b/src/app/features/files/pages/files/files.component.html
index 0b80d588c..b7739aa2e 100644
--- a/src/app/features/files/pages/files/files.component.html
+++ b/src/app/features/files/pages/files/files.component.html
@@ -27,6 +27,7 @@
           [canUpdateFiles]="canUploadFiles()"
           [selectedFilesCount]="filesSelection.length"
           [hasViewOnly]="hasViewOnly()"
+          [isProjectReadOnly]="isProjectReadOnly()"
           (deleteSelected)="onDeleteSelected()"
           (moveSelected)="onMoveSelected()"
           (copySelected)="onCopySelected()"
@@ -72,7 +73,8 @@
 
           @if (canUploadFiles() && !hasViewOnly()) {
             <p-button
-              [disabled]="isButtonDisabled()"
+              [disabled]="isButtonDisabled() || isProjectReadOnly()"
+              [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
               outlined
               raised
               severity="success"
@@ -83,7 +85,8 @@
             </p-button>
 
             <p-button
-              [disabled]="isButtonDisabled()"
+              [disabled]="isButtonDisabled() || isProjectReadOnly()"
+              [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
               outlined
               raised
               severity="success"
@@ -95,7 +98,8 @@
 
             @if (isGoogleDrive()) {
               <p-button
-                [disabled]="isGoogleDriveButtonDisabled()"
+                [disabled]="isGoogleDriveButtonDisabled() || isProjectReadOnly()"
+                [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
                 outlined
                 raised
                 severity="success"
diff --git a/src/app/features/files/pages/files/files.component.spec.ts b/src/app/features/files/pages/files/files.component.spec.ts
index 63789abf3..057369971 100644
--- a/src/app/features/files/pages/files/files.component.spec.ts
+++ b/src/app/features/files/pages/files/files.component.spec.ts
@@ -9,6 +9,7 @@ import { Mock } from 'vitest';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute, Router, UrlTree } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { FileUploadDialogComponent } from '@osf/shared/components/file-upload-dialog/file-upload-dialog.component';
 import { FormSelectComponent } from '@osf/shared/components/form-select/form-select.component';
 import { GoogleFilePickerComponent } from '@osf/shared/components/google-file-picker/google-file-picker.component';
@@ -18,6 +19,7 @@ import { SubHeaderComponent } from '@osf/shared/components/sub-header/sub-header
 import { ViewOnlyLinkMessageComponent } from '@osf/shared/components/view-only-link-message/view-only-link-message.component';
 import { SupportedFeature } from '@osf/shared/enums/addon-supported-features.enum';
 import { FileKind } from '@osf/shared/enums/file-kind.enum';
+import { FileMenuType } from '@osf/shared/enums/file-menu-type.enum';
 import { ResourceType } from '@osf/shared/enums/resource-type.enum';
 import { CurrentResource } from '@osf/shared/models/current-resource.model';
 import { FileFolderModel } from '@osf/shared/models/files/file-folder.model';
@@ -72,6 +74,9 @@ import { FilesComponent } from './files.component';
 interface SetupOverrides extends BaseSetupOverrides {
   routeParams?: Record<string, string>;
   resourceId?: string;
+  fileProvider?: string;
+  hasViewOnlyParam?: boolean;
+  withResourceType?: ResourceType;
 }
 
 describe('FilesComponent', () => {
@@ -139,10 +144,11 @@ describe('FilesComponent', () => {
     };
 
     const resourceRoute = ActivatedRouteMockBuilder.create()
+      .withData({ resourceType: overrides.withResourceType ?? ResourceType.Project })
       .withParams({ id: overrides.resourceId ?? 'node-1' })
       .build();
     const dataRoute = ActivatedRouteMockBuilder.create()
-      .withData({ resourceType: ResourceType.Project })
+      .withData({ resourceType: overrides.withResourceType ?? ResourceType.Project })
       .withParentRoute(resourceRoute)
       .build();
     const routeMock = ActivatedRouteMockBuilder.create()
@@ -166,10 +172,11 @@ describe('FilesComponent', () => {
       { selector: FilesSelectors.isConfiguredStorageAddonsLoading, value: false },
       {
         selector: FilesSelectors.getStorageSupportedFeatures,
-        value: { [FileProvider.OsfStorage]: [SupportedFeature.AddUpdateFiles] },
+        value: { [FileProvider.OsfStorage]: [...Object.values(SupportedFeature)] },
       },
       { selector: CurrentResourceSelectors.hasResourceWriteAccess, value: true },
       { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: false },
+      { selector: UserSelectors.isProjectReadOnly, value: false },
     ];
 
     TestBed.configureTestingModule({
@@ -232,6 +239,114 @@ describe('FilesComponent', () => {
     expect(calls).toContainEqual(new GetConfiguredStorageAddons('node-1'));
   });
 
+  it('should compute isProjectReadOnly true when readOnlyFlagActive is true and resourceType is Project', () => {
+    setup({
+      withResourceType: ResourceType.Project,
+      selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }],
+    });
+    expect(component.isProjectReadOnly()).toBe(true);
+
+    setup({
+      withResourceType: ResourceType.ProjectComponent,
+      selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }],
+    });
+    expect(component.isProjectReadOnly()).toBe(true);
+
+    setup({
+      withResourceType: ResourceType.Project,
+      selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }],
+    });
+    expect(component.isProjectReadOnly()).toBe(false);
+
+    setup({
+      withResourceType: ResourceType.ProjectComponent,
+      selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }],
+    });
+    expect(component.isProjectReadOnly()).toBe(false);
+
+    setup({
+      withResourceType: ResourceType.Registration,
+      selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }],
+    });
+    expect(component.isProjectReadOnly()).toBe(false);
+  });
+
+  it('should compute allowedMenuActions based on view only, registration, edit access and project read only flag', () => {
+    const editableMenu = {
+      [FileMenuType.Download]: true,
+      [FileMenuType.Embed]: true,
+      [FileMenuType.Share]: true,
+      [FileMenuType.Move]: true,
+      [FileMenuType.Copy]: true,
+      [FileMenuType.Rename]: true,
+      [FileMenuType.Delete]: true,
+    };
+    const readonlyMenu = {
+      [FileMenuType.Download]: true,
+      [FileMenuType.Embed]: true,
+      [FileMenuType.Share]: true,
+      [FileMenuType.Move]: false,
+      [FileMenuType.Copy]: false,
+      [FileMenuType.Rename]: false,
+      [FileMenuType.Delete]: false,
+    };
+
+    setup({
+      selectorOverrides: [
+        { selector: CurrentResourceSelectors.hasResourceWriteAccess, value: false },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: false },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+      ],
+    });
+    expect(component.allowedMenuActions()).toEqual(readonlyMenu);
+
+    setup({
+      selectorOverrides: [
+        { selector: CurrentResourceSelectors.hasResourceWriteAccess, value: true },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: true },
+        { selector: UserSelectors.isProjectReadOnly, value: true },
+      ],
+    });
+    expect(component.allowedMenuActions()).toEqual(readonlyMenu);
+
+    setup({
+      withResourceType: ResourceType.Registration,
+      selectorOverrides: [
+        { selector: CurrentResourceSelectors.hasResourceWriteAccess, value: true },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: true },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+      ],
+    });
+    expect(component.allowedMenuActions()).toEqual(readonlyMenu);
+
+    setup({
+      selectorOverrides: [
+        { selector: CurrentResourceSelectors.hasResourceWriteAccess, value: true },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: false },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+      ],
+    });
+    expect(component.allowedMenuActions()).toEqual(editableMenu);
+
+    setup({
+      selectorOverrides: [
+        { selector: CurrentResourceSelectors.hasResourceWriteAccess, value: false },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: true },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+      ],
+    });
+    expect(component.allowedMenuActions()).toEqual(editableMenu);
+
+    setup({
+      selectorOverrides: [
+        { selector: CurrentResourceSelectors.hasResourceWriteAccess, value: true },
+        { selector: CurrentResourceSelectors.hasResourceAdminAccess, value: true },
+        { selector: UserSelectors.isProjectReadOnly, value: false },
+      ],
+    });
+    expect(component.allowedMenuActions()).toEqual(editableMenu);
+  });
+
   it('should call uploadFiles from tree upload confirm callback', () => {
     setup();
     const uploadSpy = vi.spyOn(component, 'uploadFiles').mockImplementation(() => {});
diff --git a/src/app/features/files/pages/files/files.component.ts b/src/app/features/files/pages/files/files.component.ts
index 7b22779dd..81b68d112 100644
--- a/src/app/features/files/pages/files/files.component.ts
+++ b/src/app/features/files/pages/files/files.component.ts
@@ -4,6 +4,7 @@ import { TranslatePipe, TranslateService } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Select } from 'primeng/select';
+import { Tooltip } from 'primeng/tooltip';
 
 import { debounceTime, distinctUntilChanged, finalize, map, of, switchMap, tap } from 'rxjs';
 
@@ -24,6 +25,7 @@ import { takeUntilDestroyed, toSignal } from '@angular/core/rxjs-interop';
 import { FormControl, FormsModule, ReactiveFormsModule } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { FileUploadDialogComponent } from '@osf/shared/components/file-upload-dialog/file-upload-dialog.component';
 import { FormSelectComponent } from '@osf/shared/components/form-select/form-select.component';
 import { GoogleFilePickerComponent } from '@osf/shared/components/google-file-picker/google-file-picker.component';
@@ -94,6 +96,7 @@ import {
     ViewOnlyLinkMessageComponent,
     FilesSelectionActionsComponent,
     TranslatePipe,
+    Tooltip,
   ],
   templateUrl: './files.component.html',
   styleUrl: './files.component.scss',
@@ -147,6 +150,7 @@ export class FilesComponent {
   readonly supportedFeatures = select(FilesSelectors.getStorageSupportedFeatures);
   readonly hasWriteAccess = select(CurrentResourceSelectors.hasResourceWriteAccess);
   readonly hasAdminAccess = select(CurrentResourceSelectors.hasResourceAdminAccess);
+  readonly readOnlyFlagActive = select(UserSelectors.isProjectReadOnly);
   readonly currentResourceType = computed<CurrentResourceType>(
     () => (this.resourceMetadata()?.type as CurrentResourceType) ?? CurrentResourceType.Projects
   );
@@ -181,11 +185,12 @@ export class FilesComponent {
     const supportedFeatures = this.supportedFeatures()[provider] || [];
     const hasViewOnly = this.hasViewOnly();
     const isRegistration = this.resourceType() === ResourceType.Registration;
+    const isProjectReadOnly = this.isProjectReadOnly();
     const menuMap = mapMenuActions(supportedFeatures);
 
     const result: Record<FileMenuType, boolean> = { ...menuMap };
 
-    if (hasViewOnly || isRegistration || !this.canEdit()) {
+    if (hasViewOnly || isRegistration || !this.canEdit() || isProjectReadOnly) {
       const allowed = new Set<FileMenuType>([FileMenuType.Download, FileMenuType.Embed, FileMenuType.Share]);
 
       (Object.keys(result) as FileMenuType[]).forEach((key) => {
@@ -207,6 +212,12 @@ export class FilesComponent {
 
   readonly hasViewOnly = computed(() => this.viewOnlyService.hasViewOnlyParam(this.router));
   readonly canEdit = computed(() => this.hasWriteAccess() || this.hasAdminAccess());
+
+  readonly isProjectReadOnly = computed(
+    () =>
+      this.readOnlyFlagActive() && [ResourceType.Project, ResourceType.ProjectComponent].includes(this.resourceType())
+  );
+
   readonly isRegistration = computed(() => this.resourceType() === ResourceType.Registration);
 
   canUploadFiles = computed(
diff --git a/src/app/features/home/pages/dashboard/dashboard.component.html b/src/app/features/home/pages/dashboard/dashboard.component.html
index 4a005698d..9a5645c48 100644
--- a/src/app/features/home/pages/dashboard/dashboard.component.html
+++ b/src/app/features/home/pages/dashboard/dashboard.component.html
@@ -7,6 +7,8 @@
       [title]="subHeaderTitle() | translate"
       [icon]="'fas fa-home'"
       [buttonLabel]="'home.loggedIn.dashboard.createProject' | translate"
+      [isButtonDisabled]="projectCreationDisabled()"
+      [buttonTooltip]="buttonTooltip() | translate"
       (buttonClick)="createProject()"
     />
 
@@ -64,7 +66,7 @@ <h1>{{ 'home.loggedIn.latestResearch.title' | translate }}</h1>
       </div>
     } @else {
       <div class="flex flex-column align-items-center bg-white gap-4 text-center py-4 px-6">
-        <p>{{ 'home.loggedIn.dashboard.noCreatedProject' | translate }}</p>
+        <p>{{ noProjectsMessage() | translate }}</p>
 
         <p class="rich-text" [innerHTML]="'home.loggedIn.dashboard.projectTransition' | translate"></p>
 
diff --git a/src/app/features/home/pages/dashboard/dashboard.component.spec.ts b/src/app/features/home/pages/dashboard/dashboard.component.spec.ts
index c68654ccc..360640c9b 100644
--- a/src/app/features/home/pages/dashboard/dashboard.component.spec.ts
+++ b/src/app/features/home/pages/dashboard/dashboard.component.spec.ts
@@ -72,6 +72,7 @@ describe('DashboardComponent', () => {
     { selector: MyResourcesSelectors.getProjects, value: [] },
     { selector: MyResourcesSelectors.getTotalProjects, value: 0 },
     { selector: MyResourcesSelectors.getProjectsLoading, value: false },
+    { selector: UserSelectors.isProjectCreationDisabled, value: false },
     { selector: UserSelectors.getActiveFlags, value: [] },
   ];
 
@@ -131,6 +132,14 @@ describe('DashboardComponent', () => {
     );
   });
 
+  it('should disable project creation and show tooltip when isProjectCreationDisabled is true', () => {
+    setup({
+      selectorOverrides: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+    });
+
+    expect(component.buttonTooltip()).toBe('home.loggedIn.dashboard.createProjectDisabledTooltip');
+  });
+
   it('should read query params and fetch projects on init', () => {
     setup({
       routeQueryParams: {
diff --git a/src/app/features/home/pages/dashboard/dashboard.component.ts b/src/app/features/home/pages/dashboard/dashboard.component.ts
index 70dbaaf5f..dff7125c6 100644
--- a/src/app/features/home/pages/dashboard/dashboard.component.ts
+++ b/src/app/features/home/pages/dashboard/dashboard.component.ts
@@ -69,6 +69,7 @@ export class DashboardComponent implements OnInit {
   readonly projects = select(MyResourcesSelectors.getProjects);
   readonly totalProjectsCount = select(MyResourcesSelectors.getTotalProjects);
   readonly areProjectsLoading = select(MyResourcesSelectors.getProjectsLoading);
+  readonly projectCreationDisabled = select(UserSelectors.isProjectCreationDisabled);
   readonly activeFlags = select(UserSelectors.getActiveFlags);
 
   readonly actions = createDispatchMap({ getMyProjects: GetMyProjects, clearMyResources: ClearMyResources });
@@ -82,7 +83,17 @@ export class DashboardComponent implements OnInit {
     return this.projects().filter((project) => project.title.toLowerCase().includes(search));
   });
 
+  readonly buttonTooltip = computed(() => {
+    return this.projectCreationDisabled() ? 'home.loggedIn.dashboard.createProjectDisabledTooltip' : '';
+  });
+
   readonly existsProjects = computed(() => this.projects().length || !!this.searchControl.value?.length);
+  readonly noProjectsMessage = computed(() => {
+    if (this.projectCreationDisabled()) {
+      return 'home.loggedIn.dashboard.noCreatedProjectAndCreateProjectDisabled';
+    }
+    return 'home.loggedIn.dashboard.noCreatedProject';
+  });
   readonly subHeaderTitle = computed(() =>
     this.existsProjects() ? 'home.loggedIn.dashboard.title' : 'home.loggedIn.dashboard.welcome'
   );
diff --git a/src/app/features/metadata/components/base-metadata.component.ts b/src/app/features/metadata/components/base-metadata.component.ts
new file mode 100644
index 000000000..720b7109f
--- /dev/null
+++ b/src/app/features/metadata/components/base-metadata.component.ts
@@ -0,0 +1,9 @@
+import { Component, input } from '@angular/core';
+
+@Component({
+  template: '',
+})
+export abstract class BaseMetadataComponent {
+  disabled = input<boolean>(false);
+  disabledButtonTooltip = input<string>('');
+}
diff --git a/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.html b/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.html
index b8d7488e4..e41430815 100644
--- a/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.html
+++ b/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.html
@@ -6,6 +6,9 @@ <h2>{{ 'common.labels.affiliatedInstitutions' | translate }}</h2>
       <p-button
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         (onClick)="openEditAffiliatedInstitutionsDialog.emit()"
         data-test-edit-institutions-button
       ></p-button>
diff --git a/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.spec.ts b/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.spec.ts
index 044300924..225ec12c7 100644
--- a/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.spec.ts
@@ -42,4 +42,13 @@ describe('MetadataAffiliatedInstitutionsComponent', () => {
 
     expect(component.readonly()).toBe(true);
   });
+
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
 });
diff --git a/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.ts b/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.ts
index bcf1badf8..d1dd547da 100644
--- a/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.ts
+++ b/src/app/features/metadata/components/metadata-affiliated-institutions/metadata-affiliated-institutions.component.ts
@@ -2,19 +2,22 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
 import { AffiliatedInstitutionsViewComponent } from '@osf/shared/components/affiliated-institutions-view/affiliated-institutions-view.component';
 import { Institution } from '@osf/shared/models/institutions/institutions.model';
 
+import { BaseMetadataComponent } from '../base-metadata.component';
+
 @Component({
   selector: 'osf-metadata-affiliated-institutions',
-  imports: [Button, Card, TranslatePipe, AffiliatedInstitutionsViewComponent],
+  imports: [Button, Card, Tooltip, TranslatePipe, AffiliatedInstitutionsViewComponent],
   templateUrl: './metadata-affiliated-institutions.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataAffiliatedInstitutionsComponent {
+export class MetadataAffiliatedInstitutionsComponent extends BaseMetadataComponent {
   openEditAffiliatedInstitutionsDialog = output<void>();
 
   affiliatedInstitutions = input<Institution[]>([]);
diff --git a/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.html b/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.html
index d086e52c4..af19d1d4e 100644
--- a/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.html
+++ b/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.html
@@ -7,6 +7,9 @@ <h2>{{ 'common.labels.contributors' | translate }}</h2>
         (onClick)="openEditContributorDialog.emit()"
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         data-test-edit-contributors-button
       ></p-button>
     }
diff --git a/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.spec.ts b/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.spec.ts
index f7506031b..cf4e5f6da 100644
--- a/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.spec.ts
@@ -53,6 +53,15 @@ describe('MetadataContributorsComponent', () => {
     expect(component.readonly()).toBe(true);
   });
 
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
+
   it('should emit openEditContributorDialog event', () => {
     const emitSpy = vi.spyOn(component.openEditContributorDialog, 'emit');
 
diff --git a/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.ts b/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.ts
index abfa69571..39a2a4056 100644
--- a/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.ts
+++ b/src/app/features/metadata/components/metadata-contributors/metadata-contributors.component.ts
@@ -2,19 +2,22 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
 import { ContributorsListComponent } from '@osf/shared/components/contributors-list/contributors-list.component';
 import { ContributorModel } from '@osf/shared/models/contributors/contributor.model';
 
+import { BaseMetadataComponent } from '../base-metadata.component';
+
 @Component({
   selector: 'osf-metadata-contributors',
-  imports: [Button, Card, TranslatePipe, ContributorsListComponent],
+  imports: [Button, Card, Tooltip, TranslatePipe, ContributorsListComponent],
   templateUrl: './metadata-contributors.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataContributorsComponent {
+export class MetadataContributorsComponent extends BaseMetadataComponent {
   contributors = input<ContributorModel[]>([]);
   isLoading = input(false);
   hasMoreContributors = input(false);
diff --git a/src/app/features/metadata/components/metadata-description/metadata-description.component.html b/src/app/features/metadata/components/metadata-description/metadata-description.component.html
index 8aa659b6b..5f9f8d793 100644
--- a/src/app/features/metadata/components/metadata-description/metadata-description.component.html
+++ b/src/app/features/metadata/components/metadata-description/metadata-description.component.html
@@ -7,6 +7,9 @@ <h2>{{ 'common.labels.description' | translate }}</h2>
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
         (onClick)="openEditDescriptionDialog.emit()"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         data-test-edit-description-button
       ></p-button>
     }
diff --git a/src/app/features/metadata/components/metadata-description/metadata-description.component.spec.ts b/src/app/features/metadata/components/metadata-description/metadata-description.component.spec.ts
index 326a5a411..5c2e3db13 100644
--- a/src/app/features/metadata/components/metadata-description/metadata-description.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-description/metadata-description.component.spec.ts
@@ -31,6 +31,16 @@ describe('MetadataDescriptionComponent', () => {
     expect(component.description()).toEqual(mockDescription);
   });
 
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('description', mockDescription);
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
+
   it('should emit openEditDescriptionDialog event', () => {
     const emitSpy = vi.spyOn(component.openEditDescriptionDialog, 'emit');
 
diff --git a/src/app/features/metadata/components/metadata-description/metadata-description.component.ts b/src/app/features/metadata/components/metadata-description/metadata-description.component.ts
index 27a06c164..d0f5b5168 100644
--- a/src/app/features/metadata/components/metadata-description/metadata-description.component.ts
+++ b/src/app/features/metadata/components/metadata-description/metadata-description.component.ts
@@ -2,16 +2,18 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
+import { BaseMetadataComponent } from '../base-metadata.component';
 @Component({
   selector: 'osf-metadata-description',
-  imports: [Card, Button, TranslatePipe],
+  imports: [Card, Button, Tooltip, TranslatePipe],
   templateUrl: './metadata-description.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataDescriptionComponent {
+export class MetadataDescriptionComponent extends BaseMetadataComponent {
   openEditDescriptionDialog = output<void>();
   description = input.required<string>();
   readonly = input<boolean>(false);
diff --git a/src/app/features/metadata/components/metadata-funding/metadata-funding.component.html b/src/app/features/metadata/components/metadata-funding/metadata-funding.component.html
index d02ec5408..5f7e0d4c0 100644
--- a/src/app/features/metadata/components/metadata-funding/metadata-funding.component.html
+++ b/src/app/features/metadata/components/metadata-funding/metadata-funding.component.html
@@ -6,6 +6,9 @@ <h2>{{ 'project.overview.metadata.fundingSupport' | translate }}</h2>
       <p-button
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         (onClick)="openEditFundingDialog.emit()"
         data-test-edit-funding-button
       ></p-button>
diff --git a/src/app/features/metadata/components/metadata-funding/metadata-funding.component.spec.ts b/src/app/features/metadata/components/metadata-funding/metadata-funding.component.spec.ts
index dfeaa309f..538df4b69 100644
--- a/src/app/features/metadata/components/metadata-funding/metadata-funding.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-funding/metadata-funding.component.spec.ts
@@ -41,6 +41,15 @@ describe('MetadataFundingComponent', () => {
     expect(component.readonly()).toBe(true);
   });
 
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
+
   it('should emit openEditFundingDialog event', () => {
     const emitSpy = vi.spyOn(component.openEditFundingDialog, 'emit');
 
diff --git a/src/app/features/metadata/components/metadata-funding/metadata-funding.component.ts b/src/app/features/metadata/components/metadata-funding/metadata-funding.component.ts
index c0d6e7081..0fa62940f 100644
--- a/src/app/features/metadata/components/metadata-funding/metadata-funding.component.ts
+++ b/src/app/features/metadata/components/metadata-funding/metadata-funding.component.ts
@@ -2,19 +2,21 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { NgClass } from '@angular/common';
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
 import { Funder } from '../../models';
+import { BaseMetadataComponent } from '../base-metadata.component';
 
 @Component({
   selector: 'osf-metadata-funding',
-  imports: [NgClass, Button, Card, TranslatePipe],
+  imports: [NgClass, Button, Card, Tooltip, TranslatePipe],
   templateUrl: './metadata-funding.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataFundingComponent {
+export class MetadataFundingComponent extends BaseMetadataComponent {
   openEditFundingDialog = output<void>();
 
   funders = input<Funder[]>();
diff --git a/src/app/features/metadata/components/metadata-license/metadata-license.component.html b/src/app/features/metadata/components/metadata-license/metadata-license.component.html
index 77aa11ece..12728c341 100644
--- a/src/app/features/metadata/components/metadata-license/metadata-license.component.html
+++ b/src/app/features/metadata/components/metadata-license/metadata-license.component.html
@@ -7,6 +7,9 @@ <h2>{{ 'common.labels.license' | translate }}</h2>
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
         (onClick)="openEditLicenseDialog.emit()"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         data-test-edit-license-button
       />
     }
diff --git a/src/app/features/metadata/components/metadata-license/metadata-license.component.spec.ts b/src/app/features/metadata/components/metadata-license/metadata-license.component.spec.ts
index 573b993f4..d014c807f 100644
--- a/src/app/features/metadata/components/metadata-license/metadata-license.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-license/metadata-license.component.spec.ts
@@ -44,6 +44,15 @@ describe('MetadataLicenseComponent', () => {
     expect(component.readonly()).toBe(true);
   });
 
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
+
   it('should emit openEditLicenseDialog event', () => {
     const emitSpy = vi.spyOn(component.openEditLicenseDialog, 'emit');
 
diff --git a/src/app/features/metadata/components/metadata-license/metadata-license.component.ts b/src/app/features/metadata/components/metadata-license/metadata-license.component.ts
index 9fc0c98d6..7639ce9be 100644
--- a/src/app/features/metadata/components/metadata-license/metadata-license.component.ts
+++ b/src/app/features/metadata/components/metadata-license/metadata-license.component.ts
@@ -2,18 +2,21 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
 import { LicenseModel } from '@osf/shared/models/license/license.model';
 
+import { BaseMetadataComponent } from '../base-metadata.component';
+
 @Component({
   selector: 'osf-metadata-license',
-  imports: [Button, Card, TranslatePipe],
+  imports: [Button, Card, Tooltip, TranslatePipe],
   templateUrl: './metadata-license.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataLicenseComponent {
+export class MetadataLicenseComponent extends BaseMetadataComponent {
   openEditLicenseDialog = output<void>();
   readonly = input<boolean>(false);
   license = input<LicenseModel | null>(null);
diff --git a/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.html b/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.html
index 44341e63e..f29ede29d 100644
--- a/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.html
+++ b/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.html
@@ -10,6 +10,9 @@ <h2>
       <p-button
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         (onClick)="openEditPublicationDoiDialog.emit()"
         data-test-edit-doi-button
       ></p-button>
diff --git a/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.spec.ts b/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.spec.ts
index f3ed0c6d5..fb910678b 100644
--- a/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.spec.ts
@@ -46,6 +46,15 @@ describe('MetadataPublicationDoiComponent', () => {
     expect(component.hideEditDoi()).toBe(true);
   });
 
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
+
   it('should emit openEditPublicationDoiDialog event', () => {
     const emitSpy = vi.spyOn(component.openEditPublicationDoiDialog, 'emit');
 
diff --git a/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.ts b/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.ts
index 10231c8b2..74f579b1d 100644
--- a/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.ts
+++ b/src/app/features/metadata/components/metadata-publication-doi/metadata-publication-doi.component.ts
@@ -2,19 +2,22 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, computed, input, output } from '@angular/core';
 
 import { ResourceType } from '@osf/shared/enums/resource-type.enum';
 import { IdentifierModel } from '@osf/shared/models/identifiers/identifier.model';
 
+import { BaseMetadataComponent } from '../base-metadata.component';
+
 @Component({
   selector: 'osf-metadata-publication-doi',
-  imports: [Button, Card, TranslatePipe],
+  imports: [Button, Card, Tooltip, TranslatePipe],
   templateUrl: './metadata-publication-doi.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataPublicationDoiComponent {
+export class MetadataPublicationDoiComponent extends BaseMetadataComponent {
   openEditPublicationDoiDialog = output<void>();
 
   identifiers = input<IdentifierModel[]>([]);
diff --git a/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.html b/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.html
index 9b2e95482..078aa4f40 100644
--- a/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.html
+++ b/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.html
@@ -15,6 +15,9 @@ <h2>
       <p-button
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         (onClick)="openEditResourceInformationDialog.emit()"
         data-test-edit-resource-information-button
       ></p-button>
diff --git a/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.spec.ts b/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.spec.ts
index 6eebd9418..8d4d8885b 100644
--- a/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.spec.ts
@@ -51,6 +51,15 @@ describe('MetadataResourceInformationComponent', () => {
     expect(component.readonly()).toBe(true);
   });
 
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
+
   it('should emit openEditResourceInformationDialog event', () => {
     const emitSpy = vi.spyOn(component.openEditResourceInformationDialog, 'emit');
 
diff --git a/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.ts b/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.ts
index 4659ab242..3c1625878 100644
--- a/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.ts
+++ b/src/app/features/metadata/components/metadata-resource-information/metadata-resource-information.component.ts
@@ -2,6 +2,7 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
@@ -9,13 +10,15 @@ import { CustomItemMetadataRecord } from '@osf/features/metadata/models';
 import { LanguageLabelPipe } from '@osf/shared/pipes/language-label.pipe';
 import { ResourceTypeGeneralLabelPipe } from '@osf/shared/pipes/resource-type-general-label.pipe';
 
+import { BaseMetadataComponent } from '../base-metadata.component';
+
 @Component({
   selector: 'osf-metadata-resource-information',
-  imports: [Button, Card, TranslatePipe, LanguageLabelPipe, ResourceTypeGeneralLabelPipe],
+  imports: [Button, Card, Tooltip, TranslatePipe, LanguageLabelPipe, ResourceTypeGeneralLabelPipe],
   templateUrl: './metadata-resource-information.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataResourceInformationComponent {
+export class MetadataResourceInformationComponent extends BaseMetadataComponent {
   openEditResourceInformationDialog = output<void>();
 
   customItemMetadata = input.required<CustomItemMetadataRecord | null>();
diff --git a/src/app/features/metadata/components/metadata-title/metadata-title.component.html b/src/app/features/metadata/components/metadata-title/metadata-title.component.html
index 9f1e06f1a..ad4a44316 100644
--- a/src/app/features/metadata/components/metadata-title/metadata-title.component.html
+++ b/src/app/features/metadata/components/metadata-title/metadata-title.component.html
@@ -7,6 +7,9 @@ <h2>{{ 'common.labels.title' | translate }}</h2>
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
         (onClick)="openEditTitleDialog.emit()"
+        [disabled]="disabled()"
+        [pTooltip]="disabledButtonTooltip()"
+        tooltipPosition="left"
         data-test-edit-title-button
       ></p-button>
     }
diff --git a/src/app/features/metadata/components/metadata-title/metadata-title.component.spec.ts b/src/app/features/metadata/components/metadata-title/metadata-title.component.spec.ts
index 07600066a..841d9f40d 100644
--- a/src/app/features/metadata/components/metadata-title/metadata-title.component.spec.ts
+++ b/src/app/features/metadata/components/metadata-title/metadata-title.component.spec.ts
@@ -31,6 +31,16 @@ describe('MetadataTitleComponent', () => {
     expect(component.title()).toEqual(mockTitle);
   });
 
+  it('should set disabled inputs', () => {
+    fixture.componentRef.setInput('title', mockTitle);
+    fixture.componentRef.setInput('disabled', true);
+    fixture.componentRef.setInput('disabledButtonTooltip', 'Editing is disabled');
+    fixture.detectChanges();
+
+    expect(component.disabled()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('Editing is disabled');
+  });
+
   it('should emit openEditTitleDialog event', () => {
     const emitSpy = vi.spyOn(component.openEditTitleDialog, 'emit');
 
diff --git a/src/app/features/metadata/components/metadata-title/metadata-title.component.ts b/src/app/features/metadata/components/metadata-title/metadata-title.component.ts
index b1864575c..1c02d5acb 100644
--- a/src/app/features/metadata/components/metadata-title/metadata-title.component.ts
+++ b/src/app/features/metadata/components/metadata-title/metadata-title.component.ts
@@ -2,16 +2,19 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 
+import { BaseMetadataComponent } from '../base-metadata.component';
+
 @Component({
   selector: 'osf-metadata-title',
-  imports: [Card, Button, TranslatePipe],
+  imports: [Card, Button, Tooltip, TranslatePipe],
   templateUrl: './metadata-title.component.html',
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
-export class MetadataTitleComponent {
+export class MetadataTitleComponent extends BaseMetadataComponent {
   title = input.required<string>();
   readonly = input<boolean>(false);
   openEditTitleDialog = output<void>();
diff --git a/src/app/features/metadata/metadata.component.html b/src/app/features/metadata/metadata.component.html
index 6c0872d5d..873a2f665 100644
--- a/src/app/features/metadata/metadata.component.html
+++ b/src/app/features/metadata/metadata.component.html
@@ -2,7 +2,8 @@
   <osf-sub-header
     [showButton]="hasWriteAccess()"
     [buttonLabel]="'project.metadata.addCommunityMetadataRecord.title' | translate"
-    [isButtonDisabled]="isLoading()"
+    [isButtonDisabled]="isLoading() || isProjectReadOnly()"
+    [buttonTooltip]="disabledButtonTooltip() | translate"
     (buttonClick)="openAddRecord()"
     [title]="'common.labels.metadata' | translate"
   />
@@ -13,7 +14,7 @@
     [selectedCedarTemplate]="selectedCedarTemplate()!"
     [selectedCedarRecord]="selectedCedarRecord()!"
     [cedarFormReadonly]="cedarFormReadonly()"
-    [canEdit]="hasWriteAccess()"
+    [canEdit]="hasWriteAccess() && !isProjectReadOnly()"
     (changeTab)="onTabChange($event)"
     (formSubmit)="onCedarFormSubmit($event)"
     (cedarFormChangeTemplate)="onCedarFormChangeTemplate()"
@@ -25,12 +26,16 @@
           (openEditTitleDialog)="openEditTitleDialog()"
           [title]="metadata()?.title!"
           [readonly]="!hasWriteAccess()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         <osf-metadata-description
           (openEditDescriptionDialog)="openEditDescriptionDialog()"
           [description]="metadata()?.description!"
           [readonly]="!hasWriteAccess()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         @if (isRegistrationType()) {
@@ -46,6 +51,8 @@
           [hasMoreContributors]="hasMoreContributors()"
           [readonly]="!hasWriteAccess()"
           (loadMoreContributors)="handleLoadMoreContributors()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         <osf-metadata-resource-information
@@ -53,18 +60,24 @@
           (showResourceInfo)="onShowResourceInfo()"
           [customItemMetadata]="customItemMetadata()!"
           [readonly]="!hasWriteAccess()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         <osf-metadata-funding
           (openEditFundingDialog)="openEditFundingDialog()"
           [funders]="customItemMetadata()?.funders!"
           [readonly]="!hasWriteAccess()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         <osf-metadata-affiliated-institutions
           (openEditAffiliatedInstitutionsDialog)="openEditAffiliatedInstitutionsDialog()"
           [affiliatedInstitutions]="affiliatedInstitutions()"
           [readonly]="!hasWriteAccess()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         @if (isProjectType()) {
@@ -82,6 +95,8 @@
           (openEditLicenseDialog)="openEditLicenseDialog()"
           [license]="metadata()?.license!"
           [readonly]="!hasWriteAccess()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         <osf-metadata-publication-doi
@@ -90,6 +105,8 @@
           [identifiers]="metadata()?.identifiers!"
           [publicationDoi]="metadata()?.publicationDoi || null"
           [resourceType]="resourceType()"
+          [disabled]="isProjectReadOnly()"
+          [disabledButtonTooltip]="disabledButtonTooltip() | translate"
         />
 
         @if (isRegistrationType()) {
@@ -99,7 +116,7 @@
         <osf-metadata-tags
           [tags]="metadata()?.tags || []"
           (tagsChanged)="onTagsChanged($event)"
-          [readonly]="isRegistrationType() ? !hasAdminAccess() : !hasWriteAccess()"
+          [readonly]="isTagsReadOnly()"
         ></osf-metadata-tags>
 
         <osf-metadata-subjects
@@ -108,7 +125,7 @@
           (updateSelectedSubjects)="updateSelectedSubjects($event)"
           [isSubjectsUpdating]="isSubjectsUpdating()!"
           [selectedSubjects]="selectedSubjects()"
-          [readonly]="!hasAdminAccess()"
+          [readonly]="isSubjectsReadOnly()"
         />
       </div>
     </div>
diff --git a/src/app/features/metadata/metadata.component.spec.ts b/src/app/features/metadata/metadata.component.spec.ts
index 30d951f5f..1f6cfb69d 100644
--- a/src/app/features/metadata/metadata.component.spec.ts
+++ b/src/app/features/metadata/metadata.component.spec.ts
@@ -3,6 +3,7 @@ import { MockComponents, MockProvider } from 'ng-mocks';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { MetadataTabsComponent } from '@osf/shared/components/metadata-tabs/metadata-tabs.component';
 import { SubHeaderComponent } from '@osf/shared/components/sub-header/sub-header.component';
 import { ResourceType } from '@osf/shared/enums/resource-type.enum';
@@ -17,7 +18,7 @@ import { CustomConfirmationServiceMockBuilder } from '@testing/providers/custom-
 import { CustomDialogServiceMockBuilder } from '@testing/providers/custom-dialog-provider.mock';
 import { ActivatedRouteMockBuilder } from '@testing/providers/route-provider.mock';
 import { RouterMockBuilder } from '@testing/providers/router-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { mergeSignalOverrides, provideMockStore, SignalOverride } from '@testing/providers/store-provider.mock';
 import { ToastServiceMockBuilder } from '@testing/providers/toast-provider.mock';
 
 import { MetadataAffiliatedInstitutionsComponent } from './components/metadata-affiliated-institutions/metadata-affiliated-institutions.component';
@@ -47,12 +48,23 @@ describe('MetadataComponent', () => {
   const mockMetadata = MOCK_PROJECT_METADATA;
   const mockResourceId = 'test-resource-id';
 
-  beforeEach(() => {
+  function setup(selectorOverrides?: SignalOverride[]) {
     activatedRouteMock = ActivatedRouteMockBuilder.create()
       .withId(mockResourceId)
       .withData({ resourceType: ResourceType.Project })
       .build();
 
+    const defaultSignals: SignalOverride[] = [
+      { selector: MetadataSelectors.getResourceMetadata, value: mockMetadata },
+      { selector: MetadataSelectors.getLoading, value: false },
+      { selector: MetadataSelectors.getSubmitting, value: false },
+      { selector: MetadataSelectors.getCedarRecords, value: [] },
+      { selector: MetadataSelectors.getCedarTemplates, value: null },
+      { selector: RegistrationProviderSelectors.getBrandedProvider, value: null },
+      { selector: UserSelectors.isProjectReadOnly, value: false },
+    ];
+    const signals = mergeSignalOverrides(defaultSignals, selectorOverrides);
+
     Object.defineProperty(activatedRouteMock, 'parent', {
       value: {
         snapshot: {
@@ -99,27 +111,22 @@ describe('MetadataComponent', () => {
         MockProvider(ToastService, toastServiceMock),
         MockProvider(CustomConfirmationService, customConfirmationServiceMock),
         provideMockStore({
-          selectors: [
-            { selector: MetadataSelectors.getResourceMetadata, value: mockMetadata },
-            { selector: MetadataSelectors.getLoading, value: false },
-            { selector: MetadataSelectors.getSubmitting, value: false },
-            { selector: MetadataSelectors.getCedarRecords, value: [] },
-            { selector: MetadataSelectors.getCedarTemplates, value: null },
-            { selector: RegistrationProviderSelectors.getBrandedProvider, value: null },
-          ],
+          signals: signals,
         }),
       ],
     });
 
     fixture = TestBed.createComponent(MetadataComponent);
     component = fixture.componentInstance;
-  });
+  }
 
   it('should create', () => {
+    setup();
     expect(component).toBeTruthy();
   });
 
   it('should handle tab change for OSF tab', () => {
+    setup();
     const tabId = 'osf';
     const navigateSpy = vi.spyOn(routerMock, 'navigate');
 
@@ -130,6 +137,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should toggle edit mode', () => {
+    setup();
     const initialReadonly = component.cedarFormReadonly();
 
     component.toggleEditMode();
@@ -138,12 +146,14 @@ describe('MetadataComponent', () => {
   });
 
   it('should handle tags changed', () => {
+    setup();
     const tags = ['tag1', 'tag2'];
 
     expect(() => component.onTagsChanged(tags)).not.toThrow();
   });
 
   it('should open edit contributor dialog', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     expect(openSpy).toHaveBeenCalledTimes(0);
@@ -152,6 +162,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should open edit title dialog', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     component.openEditTitleDialog();
@@ -160,6 +171,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should open edit description dialog', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     component.openEditDescriptionDialog();
@@ -168,6 +180,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should open edit resource information dialog', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     component.openEditResourceInformationDialog();
@@ -176,6 +189,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should show resource info tooltip', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     component.onShowResourceInfo();
@@ -184,6 +198,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should open edit license dialog', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     component.openEditLicenseDialog();
@@ -192,6 +207,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should open edit funding dialog', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     component.openEditFundingDialog();
@@ -200,6 +216,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should open edit affiliated institutions dialog', () => {
+    setup();
     const openSpy = vi.spyOn(customDialogServiceMock, 'open');
 
     component.openEditAffiliatedInstitutionsDialog();
@@ -208,18 +225,21 @@ describe('MetadataComponent', () => {
   });
 
   it('should handle subject children fetch', () => {
+    setup();
     const parentId = 'parent-subject-id';
 
     expect(() => component.getSubjectChildren(parentId)).not.toThrow();
   });
 
   it('should handle subject search', () => {
+    setup();
     const searchTerm = 'test search';
 
     expect(() => component.searchSubjects(searchTerm)).not.toThrow();
   });
 
   it('should handle edit DOI for project', () => {
+    setup();
     const confirmSpy = vi.spyOn(customConfirmationServiceMock, 'confirmDelete');
 
     component.handleEditDoi();
@@ -228,6 +248,7 @@ describe('MetadataComponent', () => {
   });
 
   it('should open add record', () => {
+    setup();
     const navigateSpy = vi.spyOn(routerMock, 'navigate');
 
     component.openAddRecord();
@@ -236,10 +257,19 @@ describe('MetadataComponent', () => {
   });
 
   it('should handle cedar form change template', () => {
+    setup();
     const navigateSpy = vi.spyOn(routerMock, 'navigate');
 
     component.onCedarFormChangeTemplate();
 
     expect(navigateSpy).toHaveBeenCalled();
   });
+
+  it('should handle isProjectReadOnly', () => {
+    setup([{ selector: UserSelectors.isProjectReadOnly, value: true }]);
+
+    expect(component.isTagsReadOnly()).toBe(true);
+    expect(component.isSubjectsReadOnly()).toBe(true);
+    expect(component.disabledButtonTooltip()).toBe('common.errorMessages.actionUnavailable');
+  });
 });
diff --git a/src/app/features/metadata/metadata.component.ts b/src/app/features/metadata/metadata.component.ts
index f82c3fec4..7503ba551 100644
--- a/src/app/features/metadata/metadata.component.ts
+++ b/src/app/features/metadata/metadata.component.ts
@@ -19,6 +19,7 @@ import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 import { ActivatedRoute, Router } from '@angular/router';
 
 import { ENVIRONMENT } from '@core/provider/environment.provider';
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { MetadataTabsComponent } from '@osf/shared/components/metadata-tabs/metadata-tabs.component';
 import { SubHeaderComponent } from '@osf/shared/components/sub-header/sub-header.component';
 import { MetadataResourceEnum } from '@osf/shared/enums/metadata-resource.enum';
@@ -160,6 +161,8 @@ export class MetadataComponent implements OnInit, OnDestroy {
   hasWriteAccess = select(MetadataSelectors.hasWriteAccess);
   hasAdminAccess = select(MetadataSelectors.hasAdminAccess);
 
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
+
   provider = this.environment.defaultProvider;
 
   private readonly resourceNameMap = new Map<ResourceType, string>([
@@ -207,8 +210,23 @@ export class MetadataComponent implements OnInit, OnDestroy {
       (!!this.metadata()?.identifiers?.length || !this.metadata()?.public)
   );
 
+  isTagsReadOnly = computed(() => {
+    if (this.isProjectReadOnly()) {
+      return true;
+    }
+    return this.isRegistrationType() ? !this.hasAdminAccess() : !this.hasWriteAccess();
+  });
+
+  isSubjectsReadOnly = computed(() => {
+    if (this.isProjectReadOnly()) {
+      return true;
+    }
+    return !this.hasAdminAccess();
+  });
+
   isProjectType = computed(() => this.resourceType() === ResourceType.Project);
   isRegistrationType = computed(() => this.resourceType() === ResourceType.Registration);
+  disabledButtonTooltip = computed(() => (this.isProjectReadOnly() ? 'common.errorMessages.actionUnavailable' : ''));
 
   constructor() {
     effect(() => {
diff --git a/src/app/features/my-projects/my-projects.component.html b/src/app/features/my-projects/my-projects.component.html
index fcb4ca2c3..b35cc624a 100644
--- a/src/app/features/my-projects/my-projects.component.html
+++ b/src/app/features/my-projects/my-projects.component.html
@@ -3,6 +3,8 @@
     [showButton]="true"
     [buttonLabel]="'myProjects.header.createProject' | translate"
     [title]="'myProjects.header.title' | translate"
+    [isButtonDisabled]="projectCreationDisabled()"
+    [buttonTooltip]="buttonTooltip() | translate"
     [icon]="'custom-icon-projects'"
     (buttonClick)="createProject()"
   />
diff --git a/src/app/features/my-projects/my-projects.component.spec.ts b/src/app/features/my-projects/my-projects.component.spec.ts
index db1259d33..3144bb074 100644
--- a/src/app/features/my-projects/my-projects.component.spec.ts
+++ b/src/app/features/my-projects/my-projects.component.spec.ts
@@ -9,6 +9,7 @@ import { Mock } from 'vitest';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { MyProjectsTableComponent } from '@osf/shared/components/my-projects-table/my-projects-table.component';
 import { SearchInputComponent } from '@osf/shared/components/search-input/search-input.component';
 import { SelectComponent } from '@osf/shared/components/select/select.component';
@@ -76,6 +77,7 @@ describe('MyProjectsComponent', () => {
     { selector: BookmarksSelectors.getBookmarks, value: [] },
     { selector: BookmarksSelectors.getBookmarksCollectionId, value: 'bookmark-collection-id' },
     { selector: BookmarksSelectors.getBookmarksTotalCount, value: 0 },
+    { selector: UserSelectors.isProjectCreationDisabled, value: false },
   ];
 
   function setup(
@@ -133,6 +135,13 @@ describe('MyProjectsComponent', () => {
     expect(component).toBeTruthy();
   });
 
+  it('should disable project creation and show tooltip when isProjectCreationDisabled is true', () => {
+    setup([{ selector: UserSelectors.isProjectCreationDisabled, value: true }]);
+
+    expect(component.projectCreationDisabled()).toBe(true);
+    expect(component.buttonTooltip()).toBe('myProjects.header.createProjectDisabledTooltip');
+  });
+
   it('should dispatch get bookmarks collection id on init', () => {
     setup();
     expect(store.dispatch).toHaveBeenCalledWith(new GetBookmarksCollectionId());
diff --git a/src/app/features/my-projects/my-projects.component.ts b/src/app/features/my-projects/my-projects.component.ts
index 8fd1df271..6013c48e5 100644
--- a/src/app/features/my-projects/my-projects.component.ts
+++ b/src/app/features/my-projects/my-projects.component.ts
@@ -25,6 +25,7 @@ import { takeUntilDestroyed, toSignal } from '@angular/core/rxjs-interop';
 import { FormControl, FormsModule } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { MyProjectsTableComponent } from '@osf/shared/components/my-projects-table/my-projects-table.component';
 import { SearchInputComponent } from '@osf/shared/components/search-input/search-input.component';
 import { SelectComponent } from '@osf/shared/components/select/select.component';
@@ -89,6 +90,7 @@ export class MyProjectsComponent implements OnInit {
   readonly downloadOptionsService = inject(ProjectDownloadOptionsService);
   readonly platformId = inject(PLATFORM_ID);
   readonly isBrowser = isPlatformBrowser(this.platformId);
+  readonly projectCreationDisabled = select(UserSelectors.isProjectCreationDisabled);
 
   readonly isLoading = signal(false);
   readonly isMedium = toSignal(inject(IS_MEDIUM));
@@ -134,6 +136,9 @@ export class MyProjectsComponent implements OnInit {
   readonly bookmarksCollectionId = select(BookmarksSelectors.getBookmarksCollectionId);
   readonly totalBookmarksCount = select(BookmarksSelectors.getBookmarksTotalCount);
   readonly isBookmarks = computed(() => this.selectedTab() === MyProjectsTab.Bookmarks);
+  readonly buttonTooltip = computed(() =>
+    this.projectCreationDisabled() ? 'myProjects.header.createProjectDisabledTooltip' : ''
+  );
 
   readonly actions = createDispatchMap({
     getBookmarksCollectionId: GetBookmarksCollectionId,
diff --git a/src/app/features/preprints/components/stepper/review-step/review-step.component.html b/src/app/features/preprints/components/stepper/review-step/review-step.component.html
index ae47fd780..325ee602d 100644
--- a/src/app/features/preprints/components/stepper/review-step/review-step.component.html
+++ b/src/app/features/preprints/components/stepper/review-step/review-step.component.html
@@ -220,16 +220,18 @@ <h3>
   </p-card>
 }
 
-<p-card class="card mt-4">
-  <div class="flex flex-column gap-4">
-    <h2>{{ 'preprints.preprintStepper.review.sections.supplements.title' | translate }}</h2>
-    @if (preprintProject()) {
-      <p>{{ preprintProject()?.name }}</p>
-    } @else {
-      <p>{{ 'preprints.preprintStepper.review.sections.supplements.noSupplements' | translate }}</p>
-    }
-  </div>
-</p-card>
+@if (!isProjectCreationDisabled()) {
+  <p-card class="card mt-4">
+    <div class="flex flex-column gap-4">
+      <h2>{{ 'preprints.preprintStepper.review.sections.supplements.title' | translate }}</h2>
+      @if (preprintProject()) {
+        <p>{{ preprintProject()?.name }}</p>
+      } @else {
+        <p>{{ 'preprints.preprintStepper.review.sections.supplements.noSupplements' | translate }}</p>
+      }
+    </div>
+  </p-card>
+}
 
 <section class="mt-6 flex flex-row justify-content-end align-items-center gap-2">
   <p-button
diff --git a/src/app/features/preprints/components/stepper/review-step/review-step.component.ts b/src/app/features/preprints/components/stepper/review-step/review-step.component.ts
index 4f0c10123..d20ecd05b 100644
--- a/src/app/features/preprints/components/stepper/review-step/review-step.component.ts
+++ b/src/app/features/preprints/components/stepper/review-step/review-step.component.ts
@@ -12,6 +12,7 @@ import { DatePipe, TitleCasePipe } from '@angular/common';
 import { ChangeDetectionStrategy, Component, computed, inject, input, OnInit, output } from '@angular/core';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { ApplicabilityStatus, PreregLinkInfo, ReviewsState } from '@osf/features/preprints/enums';
 import { PreprintProviderDetails } from '@osf/features/preprints/models';
 import {
@@ -85,6 +86,7 @@ export class ReviewStepComponent implements OnInit {
   readonly affiliatedInstitutions = select(InstitutionsSelectors.getResourceInstitutions);
   readonly license = select(PreprintStepperSelectors.getPreprintLicense);
   readonly preprintProject = select(PreprintStepperSelectors.getPreprintProject);
+  readonly isProjectCreationDisabled = select(UserSelectors.isProjectCreationDisabled);
   readonly licenseOptionsRecord = computed(() => (this.preprint()?.licenseOptions ?? {}) as Record<string, string>);
 
   readonly ApplicabilityStatus = ApplicabilityStatus;
diff --git a/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.html b/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.html
index be6d06524..9c3beb310 100644
--- a/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.html
+++ b/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.html
@@ -25,6 +25,8 @@ <h2>{{ 'preprints.preprintStepper.supplements.title' | translate }}</h2>
       styleClass="w-full"
       [label]="'preprints.preprintStepper.supplements.options.createNew' | translate"
       severity="secondary"
+      [disabled]="createProjectDisabled()"
+      [pTooltip]="createProjectTooltip() | translate"
       (onClick)="selectSupplementOption(SupplementOptions.CreateNewProject)"
     />
   </section>
diff --git a/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.spec.ts b/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.spec.ts
index 6275e16a1..40fece834 100644
--- a/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.spec.ts
+++ b/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.spec.ts
@@ -6,6 +6,7 @@ import { Mock } from 'vitest';
 
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { SupplementOptions } from '@osf/features/preprints/enums';
 import {
   ConnectProject,
@@ -46,6 +47,7 @@ describe('SupplementsStepComponent', () => {
     { selector: PreprintStepperSelectors.areAvailableProjectsLoading, value: false },
     { selector: PreprintStepperSelectors.getPreprintProject, value: null },
     { selector: PreprintStepperSelectors.isPreprintProjectLoading, value: false },
+    { selector: UserSelectors.isProjectCreationDisabled, value: false },
   ];
 
   function setup(overrides?: { selectorOverrides?: SignalOverride[]; detectChanges?: boolean }) {
@@ -359,4 +361,13 @@ describe('SupplementsStepComponent', () => {
     component.selectedSupplementOption.set(SupplementOptions.ConnectExistingProject);
     expect(component.isNextButtonDisabled()).toBe(false);
   });
+
+  it('should compute create project disabled state based on isProjectCreationDisabled', () => {
+    setup({
+      selectorOverrides: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+      detectChanges: false,
+    });
+
+    expect(component.createProjectTooltip()).toBe('preprints.preprintStepper.supplements.projectCreationDisabled');
+  });
 });
diff --git a/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.ts b/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.ts
index 4eaf843ee..7d910efa6 100644
--- a/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.ts
+++ b/src/app/features/preprints/components/stepper/supplements-step/supplements-step.component.ts
@@ -6,6 +6,7 @@ import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
 import { Select, SelectChangeEvent } from 'primeng/select';
 import { Skeleton } from 'primeng/skeleton';
+import { Tooltip } from 'primeng/tooltip';
 
 import { debounceTime, distinctUntilChanged, map } from 'rxjs';
 
@@ -26,6 +27,7 @@ import {
 import { takeUntilDestroyed, toSignal } from '@angular/core/rxjs-interop';
 import { FormControl, FormGroup, ReactiveFormsModule, Validators } from '@angular/forms';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { SupplementOptions } from '@osf/features/preprints/enums';
 import {
   ConnectProject,
@@ -45,7 +47,17 @@ import { ProjectForm } from '@shared/models/projects/create-project-form.model';
 
 @Component({
   selector: 'osf-supplements-step',
-  imports: [Button, NgClass, Card, Select, AddProjectFormComponent, ReactiveFormsModule, Skeleton, TranslatePipe],
+  imports: [
+    Button,
+    NgClass,
+    Card,
+    Select,
+    AddProjectFormComponent,
+    ReactiveFormsModule,
+    Skeleton,
+    Tooltip,
+    TranslatePipe,
+  ],
   templateUrl: './supplements-step.component.html',
   styleUrl: './supplements-step.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -69,6 +81,7 @@ export class SupplementsStepComponent implements OnInit {
   readonly areAvailableProjectsLoading = select(PreprintStepperSelectors.areAvailableProjectsLoading);
   readonly preprintProject = select(PreprintStepperSelectors.getPreprintProject);
   readonly isPreprintProjectLoading = select(PreprintStepperSelectors.isPreprintProjectLoading);
+  readonly createProjectDisabled = select(UserSelectors.isProjectCreationDisabled);
 
   selectedSupplementOption = signal<SupplementOptions>(SupplementOptions.None);
   selectedProjectId = signal<StringOrNull>(null);
@@ -113,6 +126,10 @@ export class SupplementsStepComponent implements OnInit {
     return false;
   });
 
+  createProjectTooltip = computed(() =>
+    this.createProjectDisabled() ? 'preprints.preprintStepper.supplements.projectCreationDisabled' : ''
+  );
+
   constructor() {
     effect(() => {
       const preprint = this.createdPreprint();
diff --git a/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.spec.ts b/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.spec.ts
index cb16d3bc0..43e6ed972 100644
--- a/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.spec.ts
+++ b/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.spec.ts
@@ -7,6 +7,7 @@ import { of } from 'rxjs';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { StepperComponent } from '@osf/shared/components/stepper/stepper.component';
 import { IS_WEB } from '@osf/shared/helpers/breakpoints.tokens';
 import { BrandService } from '@osf/shared/services/brand.service';
@@ -56,6 +57,7 @@ describe('SubmitPreprintStepperComponent', () => {
     { selector: PreprintProvidersSelectors.getPreprintProviderDetails(mockProviderId), value: mockProvider },
     { selector: PreprintProvidersSelectors.isPreprintProviderDetailsLoading, value: false },
     { selector: PreprintStepperSelectors.hasBeenSubmitted, value: false },
+    { selector: UserSelectors.isProjectCreationDisabled, value: false },
   ];
 
   function setup(overrides?: { selectorOverrides?: SignalOverride[] }) {
@@ -168,6 +170,22 @@ describe('SubmitPreprintStepperComponent', () => {
     expect(stepValues).toContain(PreprintSteps.AuthorAssertions);
   });
 
+  it('should filter out Supplements step when supplements are disabled via isProjectCreationDisabled', () => {
+    setup({
+      selectorOverrides: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+    });
+
+    const stepValues = component.steps().map((s) => s.value);
+    expect(stepValues).not.toContain(PreprintSteps.Supplements);
+  });
+
+  it('should include Supplements step when supplements are enabled via isProjectCreationDisabled', () => {
+    setup();
+
+    const stepValues = component.steps().map((s) => s.value);
+    expect(stepValues).toContain(PreprintSteps.Supplements);
+  });
+
   it('should re-index steps sequentially', () => {
     setup();
 
diff --git a/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.ts b/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.ts
index 65a608c74..a9f4188e9 100644
--- a/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.ts
+++ b/src/app/features/preprints/pages/submit-preprint-stepper/submit-preprint-stepper.component.ts
@@ -21,6 +21,7 @@ import {
 import { toSignal } from '@angular/core/rxjs-interop';
 import { ActivatedRoute } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { StepperComponent } from '@osf/shared/components/stepper/stepper.component';
 import { IS_WEB } from '@osf/shared/helpers/breakpoints.tokens';
 import { CanDeactivateComponent } from '@osf/shared/models/can-deactivate.interface';
@@ -79,6 +80,7 @@ export class SubmitPreprintStepperComponent implements OnDestroy, CanDeactivateC
   preprintProvider = select(PreprintProvidersSelectors.getPreprintProviderDetails(this.providerId()));
   isPreprintProviderLoading = select(PreprintProvidersSelectors.isPreprintProviderDetailsLoading);
   hasBeenSubmitted = select(PreprintStepperSelectors.hasBeenSubmitted);
+  supplementsDisabled = select(UserSelectors.isProjectCreationDisabled);
 
   currentStep = signal<StepOption>(submitPreprintSteps[0]);
 
@@ -94,7 +96,12 @@ export class SubmitPreprintStepperComponent implements OnDestroy, CanDeactivateC
     }
 
     return submitPreprintSteps
-      .filter((step) => step.value !== PreprintSteps.AuthorAssertions || provider.assertionsEnabled)
+      .filter((step) => {
+        return (
+          (step.value !== PreprintSteps.AuthorAssertions || provider.assertionsEnabled) &&
+          (step.value !== PreprintSteps.Supplements || !this.supplementsDisabled())
+        );
+      })
       .map((step, index) => ({ ...step, index }));
   });
 
diff --git a/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.spec.ts b/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.spec.ts
index e35e056c7..be59800d6 100644
--- a/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.spec.ts
+++ b/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.spec.ts
@@ -7,6 +7,7 @@ import { of } from 'rxjs';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { StepperComponent } from '@osf/shared/components/stepper/stepper.component';
 import { IS_WEB } from '@osf/shared/helpers/breakpoints.tokens';
 import { BrandService } from '@osf/shared/services/brand.service';
@@ -55,6 +56,7 @@ describe('UpdatePreprintStepperComponent', () => {
     { selector: PreprintStepperSelectors.getPreprint, value: mockPreprint },
     { selector: PreprintStepperSelectors.hasBeenSubmitted, value: false },
     { selector: PreprintStepperSelectors.hasAdminAccess, value: false },
+    { selector: UserSelectors.isProjectCreationDisabled, value: false },
   ];
 
   function setup(overrides?: { selectorOverrides?: SignalOverride[] }) {
@@ -150,6 +152,26 @@ describe('UpdatePreprintStepperComponent', () => {
     expect(stepValues).toContain(PreprintSteps.Review);
   });
 
+  it('should filter out Supplements step when isProjectCreationDisabled is true', () => {
+    setup({
+      selectorOverrides: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+    });
+
+    const steps = component.updateSteps();
+    const stepValues = steps.map((s) => s.value);
+
+    expect(stepValues).not.toContain(PreprintSteps.Supplements);
+  });
+
+  it('should include Supplements step when isProjectCreationDisabled is false', () => {
+    setup();
+
+    const steps = component.updateSteps();
+    const stepValues = steps.map((s) => s.value);
+
+    expect(stepValues).toContain(PreprintSteps.Supplements);
+  });
+
   it('should re-index steps sequentially', () => {
     setup();
 
diff --git a/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.ts b/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.ts
index c288af3f4..5be1a80b7 100644
--- a/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.ts
+++ b/src/app/features/preprints/pages/update-preprint-stepper/update-preprint-stepper.component.ts
@@ -20,6 +20,7 @@ import {
 import { toSignal } from '@angular/core/rxjs-interop';
 import { ActivatedRoute } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { StepperComponent } from '@osf/shared/components/stepper/stepper.component';
 import { IS_WEB } from '@osf/shared/helpers/breakpoints.tokens';
 import { BrandService } from '@osf/shared/services/brand.service';
@@ -78,6 +79,7 @@ export class UpdatePreprintStepperComponent implements OnDestroy, CanDeactivateC
   readonly isPreprintProviderLoading = select(PreprintProvidersSelectors.isPreprintProviderDetailsLoading);
   readonly hasBeenSubmitted = select(PreprintStepperSelectors.hasBeenSubmitted);
   readonly hasAdminAccess = select(PreprintStepperSelectors.hasAdminAccess);
+  readonly supplementsDisabled = select(UserSelectors.isProjectCreationDisabled);
 
   readonly isWeb = toSignal(inject(IS_WEB));
 
@@ -108,6 +110,9 @@ export class UpdatePreprintStepperComponent implements OnDestroy, CanDeactivateC
         if (step.value === PreprintSteps.AuthorAssertions) {
           return provider.assertionsEnabled && this.hasAdminAccess();
         }
+        if (step.value === PreprintSteps.Supplements) {
+          return !this.supplementsDisabled();
+        }
         return true;
       })
       .map((step, index) => ({ ...step, index }));
diff --git a/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.spec.ts b/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.spec.ts
index 78ef81dc7..6389d4f8a 100644
--- a/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.spec.ts
+++ b/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.spec.ts
@@ -4,10 +4,11 @@ import { MockProvider } from 'ng-mocks';
 
 import { DynamicDialogConfig, DynamicDialogRef } from 'primeng/dynamicdialog';
 
-import { EMPTY } from 'rxjs';
+import { throwError } from 'rxjs';
 
 import { Mock } from 'vitest';
 
+import { HttpErrorResponse } from '@angular/common/http';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
 import { ResourceType } from '@osf/shared/enums/resource-type.enum';
@@ -105,18 +106,21 @@ describe('ForkDialogComponent', () => {
     component.handleForkConfirm();
 
     expect(store.dispatch).toHaveBeenCalledWith(new ForkResource('project-1', ResourceType.Project));
-    expect(dialogRef.close).toHaveBeenCalledWith({ success: true });
+    expect(dialogRef.close).toHaveBeenCalledWith();
     expect(toastService.showSuccess).toHaveBeenCalledWith('project.overview.dialog.toast.fork.success');
   });
 
-  it('should still close dialog and show toast when fork action errors', () => {
+  it('should keep dialog open and show toast when fork action errors', () => {
+    const errorDetail = 'Fork creation failed';
     setup({ resourceId: 'project-1', resourceType: ResourceType.Project });
     (store.dispatch as Mock).mockClear();
-    (store.dispatch as Mock).mockReturnValueOnce(EMPTY);
+    (store.dispatch as Mock).mockReturnValueOnce(
+      throwError(() => new HttpErrorResponse({ status: 405, error: { errors: [{ detail: errorDetail }] } }))
+    );
 
     component.handleForkConfirm();
     expect(store.dispatch).toHaveBeenCalledWith(new ForkResource('project-1', ResourceType.Project));
-    expect(dialogRef.close).toHaveBeenCalledWith({ success: true });
-    expect(toastService.showSuccess).toHaveBeenCalledWith('project.overview.dialog.toast.fork.success');
+    expect(dialogRef.close).callCount(0);
+    expect(toastService.showError).toHaveBeenCalledWith(errorDetail);
   });
 });
diff --git a/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.ts b/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.ts
index da9e17296..495600c66 100644
--- a/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.ts
+++ b/src/app/features/project/overview/components/fork-dialog/fork-dialog.component.ts
@@ -5,7 +5,8 @@ import { TranslatePipe } from '@ngx-translate/core';
 import { Button } from 'primeng/button';
 import { DynamicDialogConfig, DynamicDialogRef } from 'primeng/dynamicdialog';
 
-import { finalize } from 'rxjs';
+import { EMPTY } from 'rxjs';
+import { catchError } from 'rxjs/operators';
 
 import { ChangeDetectionStrategy, Component, DestroyRef, inject } from '@angular/core';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
@@ -42,11 +43,16 @@ export class ForkDialogComponent {
       .forkResource(resourceId, resourceType)
       .pipe(
         takeUntilDestroyed(this.destroyRef),
-        finalize(() => {
-          this.dialogRef.close({ success: true });
-          this.toastService.showSuccess('project.overview.dialog.toast.fork.success');
+        catchError((e) => {
+          this.toastService.showError(e.error.errors[0].detail);
+          return EMPTY;
         })
       )
-      .subscribe();
+      .subscribe({
+        next: () => {
+          this.dialogRef.close();
+          this.toastService.showSuccess('project.overview.dialog.toast.fork.success');
+        },
+      });
   }
 }
diff --git a/src/app/features/project/overview/components/linked-resources/linked-resources.component.html b/src/app/features/project/overview/components/linked-resources/linked-resources.component.html
index dd7f7b2c1..552509480 100644
--- a/src/app/features/project/overview/components/linked-resources/linked-resources.component.html
+++ b/src/app/features/project/overview/components/linked-resources/linked-resources.component.html
@@ -6,6 +6,8 @@ <h2>{{ 'project.overview.linkedProjects.title' | translate }}</h2>
         severity="secondary"
         [label]="'project.overview.components.linkProjectsButton' | translate"
         (onClick)="openLinkProjectModal()"
+        [disabled]="isProjectReadOnly()"
+        [pTooltip]="disabledButtonTooltip() | translate"
       />
     }
   </div>
diff --git a/src/app/features/project/overview/components/linked-resources/linked-resources.component.spec.ts b/src/app/features/project/overview/components/linked-resources/linked-resources.component.spec.ts
index a316b29da..00a0a030f 100644
--- a/src/app/features/project/overview/components/linked-resources/linked-resources.component.spec.ts
+++ b/src/app/features/project/overview/components/linked-resources/linked-resources.component.spec.ts
@@ -2,6 +2,7 @@ import { MockComponents, MockProvider } from 'ng-mocks';
 
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { ContributorsListComponent } from '@osf/shared/components/contributors-list/contributors-list.component';
 import { IconComponent } from '@osf/shared/components/icon/icon.component';
 import { CustomDialogService } from '@osf/shared/services/custom-dialog.service';
@@ -10,7 +11,7 @@ import { NodeLinksSelectors } from '@osf/shared/stores/node-links';
 import { MOCK_NODE_WITH_ADMIN } from '@testing/mocks/node.mock';
 import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomDialogServiceMockBuilder } from '@testing/providers/custom-dialog-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { mergeSignalOverrides, provideMockStore, SignalOverride } from '@testing/providers/store-provider.mock';
 
 import { ProjectOverviewSelectors } from '../../store';
 import { DeleteNodeLinkDialogComponent } from '../delete-node-link-dialog/delete-node-link-dialog.component';
@@ -29,21 +30,24 @@ describe('LinkedProjectsComponent', () => {
     { ...MOCK_NODE_WITH_ADMIN, id: 'resource-3', title: 'Linked Resource 3' },
   ];
 
-  beforeEach(() => {
+  function setup(selectorOverrides?: SignalOverride[]) {
     customDialogServiceMock = CustomDialogServiceMockBuilder.create().withDefaultOpen().build();
+    const defaultSignals: SignalOverride[] = [
+      { selector: NodeLinksSelectors.getLinkedResources, value: mockLinkedResources },
+      { selector: NodeLinksSelectors.getLinkedResourcesLoading, value: false },
+      { selector: NodeLinksSelectors.hasMoreLinkedResources, value: false },
+      { selector: NodeLinksSelectors.isLoadingMoreLinkedResources, value: false },
+      { selector: ProjectOverviewSelectors.getProject, value: MOCK_NODE_WITH_ADMIN },
+      { selector: UserSelectors.isProjectReadOnly, value: false },
+    ];
+    const signals = mergeSignalOverrides(defaultSignals, selectorOverrides);
 
     TestBed.configureTestingModule({
       imports: [LinkedResourcesComponent, ...MockComponents(IconComponent, ContributorsListComponent)],
       providers: [
         provideOSFCore(),
         provideMockStore({
-          signals: [
-            { selector: NodeLinksSelectors.getLinkedResources, value: mockLinkedResources },
-            { selector: NodeLinksSelectors.getLinkedResourcesLoading, value: false },
-            { selector: NodeLinksSelectors.hasMoreLinkedResources, value: false },
-            { selector: NodeLinksSelectors.isLoadingMoreLinkedResources, value: false },
-            { selector: ProjectOverviewSelectors.getProject, value: MOCK_NODE_WITH_ADMIN },
-          ],
+          signals: signals,
         }),
         MockProvider(CustomDialogService, customDialogServiceMock),
       ],
@@ -53,9 +57,10 @@ describe('LinkedProjectsComponent', () => {
     component = fixture.componentInstance;
     fixture.componentRef.setInput('canEdit', true);
     fixture.detectChanges();
-  });
+  }
 
   it('should open LinkResourceDialogComponent with correct config', () => {
+    setup();
     component.openLinkProjectModal();
 
     expect(customDialogServiceMock.open).toHaveBeenCalledWith(LinkResourceDialogComponent, {
@@ -66,6 +71,7 @@ describe('LinkedProjectsComponent', () => {
   });
 
   it('should find resource by id and open DeleteNodeLinkDialogComponent with correct config when resource exists', () => {
+    setup();
     component.openDeleteResourceModal('resource-2');
 
     expect(customDialogServiceMock.open).toHaveBeenCalledWith(DeleteNodeLinkDialogComponent, {
@@ -76,10 +82,19 @@ describe('LinkedProjectsComponent', () => {
   });
 
   it('should return early and not open dialog when resource is not found', () => {
+    setup();
     customDialogServiceMock.open.mockClear();
 
     component.openDeleteResourceModal('non-existent-id');
 
     expect(customDialogServiceMock.open).not.toHaveBeenCalled();
   });
+
+  it('should return disabledButtonTooltip based on isProjectReadOnly', () => {
+    setup();
+    expect(component.disabledButtonTooltip()).toBe('');
+
+    setup([{ selector: UserSelectors.isProjectReadOnly, value: true }]);
+    expect(component.disabledButtonTooltip()).toBe('common.errorMessages.actionUnavailable');
+  });
 });
diff --git a/src/app/features/project/overview/components/linked-resources/linked-resources.component.ts b/src/app/features/project/overview/components/linked-resources/linked-resources.component.ts
index cd1d88944..f78fe4801 100644
--- a/src/app/features/project/overview/components/linked-resources/linked-resources.component.ts
+++ b/src/app/features/project/overview/components/linked-resources/linked-resources.component.ts
@@ -4,12 +4,14 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Skeleton } from 'primeng/skeleton';
+import { Tooltip } from 'primeng/tooltip';
 
 import { filter } from 'rxjs';
 
-import { ChangeDetectionStrategy, Component, DestroyRef, inject, input } from '@angular/core';
+import { ChangeDetectionStrategy, Component, computed, DestroyRef, inject, input } from '@angular/core';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { ContributorsListComponent } from '@osf/shared/components/contributors-list/contributors-list.component';
 import { IconComponent } from '@osf/shared/components/icon/icon.component';
 import { TruncatedTextComponent } from '@osf/shared/components/truncated-text/truncated-text.component';
@@ -22,7 +24,7 @@ import { LinkResourceDialogComponent } from '../link-resource-dialog/link-resour
 
 @Component({
   selector: 'osf-linked-resources',
-  imports: [Button, Skeleton, TranslatePipe, TruncatedTextComponent, IconComponent, ContributorsListComponent],
+  imports: [Button, Skeleton, Tooltip, TranslatePipe, TruncatedTextComponent, IconComponent, ContributorsListComponent],
   templateUrl: './linked-resources.component.html',
   styleUrl: './linked-resources.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -38,6 +40,11 @@ export class LinkedResourcesComponent {
   hasMoreLinkedResources = select(NodeLinksSelectors.hasMoreLinkedResources);
   isLoadingMoreLinkedResources = select(NodeLinksSelectors.isLoadingMoreLinkedResources);
   currentProject = select(ProjectOverviewSelectors.getProject);
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
+
+  readonly disabledButtonTooltip = computed(() =>
+    this.isProjectReadOnly() ? 'common.errorMessages.actionUnavailable' : ''
+  );
 
   private readonly actions = createDispatchMap({
     getLinkedResources: GetLinkedResources,
diff --git a/src/app/features/project/overview/components/overview-components/overview-components.component.html b/src/app/features/project/overview/components/overview-components/overview-components.component.html
index ff16cb4f4..3a0712b54 100644
--- a/src/app/features/project/overview/components/overview-components/overview-components.component.html
+++ b/src/app/features/project/overview/components/overview-components/overview-components.component.html
@@ -7,6 +7,8 @@ <h2>{{ 'project.overview.components.title' | translate }}</h2>
         (onClick)="handleAddComponent()"
         severity="secondary"
         [label]="'project.overview.components.addComponentButton' | translate"
+        [disabled]="preventComponentCreation()"
+        [pTooltip]="createComponentTooltip() | translate"
       />
     }
   </div>
diff --git a/src/app/features/project/overview/components/overview-components/overview-components.component.spec.ts b/src/app/features/project/overview/components/overview-components/overview-components.component.spec.ts
index 40dfea920..0b84dfb28 100644
--- a/src/app/features/project/overview/components/overview-components/overview-components.component.spec.ts
+++ b/src/app/features/project/overview/components/overview-components/overview-components.component.spec.ts
@@ -8,6 +8,7 @@ import { CdkDragDrop } from '@angular/cdk/drag-drop';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { ResourceType } from '@osf/shared/enums/resource-type.enum';
 import { NodeModel } from '@osf/shared/models/nodes/base-node.model';
 import { CustomDialogService } from '@osf/shared/services/custom-dialog.service';
@@ -20,7 +21,7 @@ import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomDialogServiceMockBuilder } from '@testing/providers/custom-dialog-provider.mock';
 import { LoaderServiceMock } from '@testing/providers/loader-service.mock';
 import { RouterMockBuilder, RouterMockType } from '@testing/providers/router-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { BaseSetupOverrides, mergeSignalOverrides, provideMockStore } from '@testing/providers/store-provider.mock';
 import { ToastServiceMock, ToastServiceMockType } from '@testing/providers/toast-provider.mock';
 
 import { LoadMoreComponents, ProjectOverviewSelectors, ReorderComponents } from '../../store';
@@ -30,6 +31,10 @@ import { DeleteComponentDialogComponent } from '../delete-component-dialog/delet
 
 import { OverviewComponentsComponent } from './overview-components.component';
 
+interface SetupOverrides extends BaseSetupOverrides {
+  selectors?: any[];
+}
+
 describe('OverviewComponentsComponent', () => {
   let component: OverviewComponentsComponent;
   let fixture: ComponentFixture<OverviewComponentsComponent>;
@@ -48,12 +53,22 @@ describe('OverviewComponentsComponent', () => {
     rootParentId: 'root-1',
   };
 
-  beforeEach(() => {
+  function setup(overrides: SetupOverrides = {}) {
     routerMock = RouterMockBuilder.create().build();
     customDialogService = CustomDialogServiceMockBuilder.create().build();
     loaderService = new LoaderServiceMock();
     toastService = ToastServiceMock.simple();
 
+    const defaultSelectors = [
+      { selector: ProjectOverviewSelectors.getComponents, value: components },
+      { selector: ProjectOverviewSelectors.getComponentsLoading, value: false },
+      { selector: ProjectOverviewSelectors.getComponentsSubmitting, value: false },
+      { selector: ProjectOverviewSelectors.hasMoreComponents, value: true },
+      { selector: ProjectOverviewSelectors.getProject, value: project },
+      { selector: UserSelectors.isProjectCreationDisabled, value: false },
+    ];
+    const signals = mergeSignalOverrides(defaultSelectors, overrides.selectors);
+
     TestBed.configureTestingModule({
       imports: [OverviewComponentsComponent, MockComponent(ComponentCardComponent)],
       providers: [
@@ -63,13 +78,7 @@ describe('OverviewComponentsComponent', () => {
         MockProvider(LoaderService, loaderService),
         MockProvider(ToastService, toastService),
         provideMockStore({
-          signals: [
-            { selector: ProjectOverviewSelectors.getComponents, value: components },
-            { selector: ProjectOverviewSelectors.getComponentsLoading, value: false },
-            { selector: ProjectOverviewSelectors.getComponentsSubmitting, value: false },
-            { selector: ProjectOverviewSelectors.hasMoreComponents, value: true },
-            { selector: ProjectOverviewSelectors.getProject, value: project },
-          ],
+          signals,
         }),
       ],
     });
@@ -79,17 +88,20 @@ describe('OverviewComponentsComponent', () => {
     component = fixture.componentInstance;
     fixture.componentRef.setInput('canEdit', true);
     fixture.detectChanges();
-  });
+  }
 
   it('should create', () => {
+    setup();
     expect(component).toBeTruthy();
   });
 
   it('should initialize reorderedComponents from components selector', () => {
+    setup();
     expect(component.reorderedComponents()).toEqual(components);
   });
 
   it('should open add component dialog', () => {
+    setup();
     component.handleAddComponent();
 
     expect(customDialogService.open).toHaveBeenCalledWith(AddComponentDialogComponent, {
@@ -99,18 +111,21 @@ describe('OverviewComponentsComponent', () => {
   });
 
   it('should navigate for manageContributors action', () => {
+    setup();
     component.handleMenuAction('manageContributors', 'comp-a');
 
     expect(routerMock.navigate).toHaveBeenCalledWith(['comp-a', 'contributors']);
   });
 
   it('should navigate for settings action', () => {
+    setup();
     component.handleMenuAction('settings', 'comp-a');
 
     expect(routerMock.navigate).toHaveBeenCalledWith(['comp-a', 'settings']);
   });
 
   it('should open delete component dialog through delete menu action', () => {
+    setup();
     component.handleMenuAction('delete', 'comp-a');
 
     expect(loaderService.show).toHaveBeenCalled();
@@ -124,6 +139,7 @@ describe('OverviewComponentsComponent', () => {
   });
 
   it('should open component url in same tab on navigate', () => {
+    setup();
     const openSpy = vi.spyOn(window, 'open').mockImplementation(() => null);
     vi.spyOn(routerMock, 'createUrlTree').mockReturnValue({} as any);
     vi.spyOn(routerMock, 'serializeUrl').mockReturnValue('/comp-a');
@@ -135,6 +151,7 @@ describe('OverviewComponentsComponent', () => {
   });
 
   it('should dispatch load more components when project exists', () => {
+    setup();
     (store.dispatch as Mock).mockClear();
 
     component.loadMoreComponents();
@@ -143,6 +160,7 @@ describe('OverviewComponentsComponent', () => {
   });
 
   it('should reorder components and dispatch reorder action', () => {
+    setup();
     (store.dispatch as Mock).mockClear();
     const event = { previousIndex: 0, currentIndex: 1 } as CdkDragDrop<NodeModel[]>;
 
@@ -154,6 +172,7 @@ describe('OverviewComponentsComponent', () => {
   });
 
   it('should not reorder when canEdit is false', () => {
+    setup();
     fixture.componentRef.setInput('canEdit', false);
     fixture.detectChanges();
     (store.dispatch as Mock).mockClear();
@@ -163,4 +182,13 @@ describe('OverviewComponentsComponent', () => {
 
     expect(store.dispatch).not.toHaveBeenCalledWith(expect.any(ReorderComponents));
   });
+
+  it('should disable add component button and show tooltip when isProjectCreationDisabled flag is true', () => {
+    setup({
+      selectors: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+    });
+
+    expect(component.preventComponentCreation()).toBe(true);
+    expect(component.createComponentTooltip()).toBe('project.overview.components.addComponentDisabled');
+  });
 });
diff --git a/src/app/features/project/overview/components/overview-components/overview-components.component.ts b/src/app/features/project/overview/components/overview-components/overview-components.component.ts
index 0ab0bdfd4..e7b7bafd4 100644
--- a/src/app/features/project/overview/components/overview-components/overview-components.component.ts
+++ b/src/app/features/project/overview/components/overview-components/overview-components.component.ts
@@ -4,11 +4,13 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Skeleton } from 'primeng/skeleton';
+import { Tooltip } from 'primeng/tooltip';
 
 import { CdkDrag, CdkDragDrop, CdkDropList, moveItemInArray } from '@angular/cdk/drag-drop';
 import { ChangeDetectionStrategy, Component, computed, effect, inject, input, signal } from '@angular/core';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { ResourceType } from '@osf/shared/enums/resource-type.enum';
 import { NodeModel } from '@osf/shared/models/nodes/base-node.model';
 import { CustomDialogService } from '@osf/shared/services/custom-dialog.service';
@@ -23,7 +25,7 @@ import { DeleteComponentDialogComponent } from '../delete-component-dialog/delet
 
 @Component({
   selector: 'osf-project-components',
-  imports: [Button, CdkDrag, CdkDropList, Skeleton, TranslatePipe, ComponentCardComponent],
+  imports: [Button, CdkDrag, CdkDropList, Skeleton, Tooltip, TranslatePipe, ComponentCardComponent],
   templateUrl: './overview-components.component.html',
   styleUrl: './overview-components.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -42,6 +44,7 @@ export class OverviewComponentsComponent {
   isComponentsSubmitting = select(ProjectOverviewSelectors.getComponentsSubmitting);
   hasMoreComponents = select(ProjectOverviewSelectors.hasMoreComponents);
   project = select(ProjectOverviewSelectors.getProject);
+  preventComponentCreation = select(UserSelectors.isProjectCreationDisabled);
 
   reorderedComponents = signal<NodeModel[]>([]);
 
@@ -55,6 +58,10 @@ export class OverviewComponentsComponent {
     () => this.isComponentsSubmitting() || (!this.canEdit() && this.reorderedComponents().length <= 1)
   );
 
+  createComponentTooltip = computed(() =>
+    this.preventComponentCreation() ? 'project.overview.components.addComponentDisabled' : ''
+  );
+
   constructor() {
     effect(() => {
       const componentsData = this.components();
@@ -77,6 +84,8 @@ export class OverviewComponentsComponent {
   }
 
   handleAddComponent(): void {
+    if (this.preventComponentCreation()) return;
+
     this.customDialogService.open(AddComponentDialogComponent, {
       header: 'project.overview.dialog.addComponent.header',
       width: '850px',
diff --git a/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.html b/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.html
index c4b0bad38..d48afc456 100644
--- a/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.html
+++ b/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.html
@@ -7,6 +7,8 @@ <h2>{{ 'project.overview.wiki.title' | translate }}</h2>
         severity="secondary"
         [label]="'common.buttons.edit' | translate"
         (onClick)="navigateToWiki()"
+        [disabled]="isProjectReadOnly()"
+        [pTooltip]="disabledButtonTooltip() | translate"
         data-test-edit-wiki-button
       ></p-button>
     }
diff --git a/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.spec.ts b/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.spec.ts
index 06fff3e1e..72e3232fa 100644
--- a/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.spec.ts
+++ b/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.spec.ts
@@ -3,13 +3,14 @@ import { MockComponents, MockProvider } from 'ng-mocks';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { MarkdownComponent } from '@osf/shared/components/markdown/markdown.component';
 import { TruncatedTextComponent } from '@osf/shared/components/truncated-text/truncated-text.component';
 import { WikiSelectors } from '@osf/shared/stores/wiki';
 
 import { provideOSFCore } from '@testing/osf.testing.provider';
 import { RouterMockBuilder } from '@testing/providers/router-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { mergeSignalOverrides, provideMockStore, SignalOverride } from '@testing/providers/store-provider.mock';
 
 import { OverviewWikiComponent } from './overview-wiki.component';
 
@@ -20,18 +21,21 @@ describe('OverviewWikiComponent', () => {
 
   const mockResourceId = 'project-123';
 
-  beforeEach(() => {
+  function setup(signalOverrides?: SignalOverride[]) {
     routerMock = RouterMockBuilder.create().build();
+    const defaultSignals = [
+      { selector: WikiSelectors.getHomeWikiLoading, value: false },
+      { selector: WikiSelectors.getHomeWikiContent, value: null },
+      { selector: UserSelectors.isProjectReadOnly, value: false },
+    ];
+    const signals = mergeSignalOverrides(defaultSignals, signalOverrides);
 
     TestBed.configureTestingModule({
       imports: [OverviewWikiComponent, ...MockComponents(TruncatedTextComponent, MarkdownComponent)],
       providers: [
         provideOSFCore(),
         provideMockStore({
-          signals: [
-            { selector: WikiSelectors.getHomeWikiLoading, value: false },
-            { selector: WikiSelectors.getHomeWikiContent, value: null },
-          ],
+          signals: signals,
         }),
         MockProvider(Router, routerMock),
       ],
@@ -39,18 +43,21 @@ describe('OverviewWikiComponent', () => {
 
     fixture = TestBed.createComponent(OverviewWikiComponent);
     component = fixture.componentInstance;
-  });
+  }
 
   it('should create', () => {
+    setup();
     expect(component).toBeTruthy();
   });
 
   it('should default resourceId to empty string', () => {
+    setup();
     fixture.detectChanges();
     expect(component.resourceId()).toBe('');
   });
 
   it('should set resourceId input correctly', () => {
+    setup();
     fixture.componentRef.setInput('resourceId', mockResourceId);
     fixture.detectChanges();
 
@@ -58,11 +65,13 @@ describe('OverviewWikiComponent', () => {
   });
 
   it('should default canEdit to false', () => {
+    setup();
     fixture.detectChanges();
     expect(component.canEdit()).toBe(false);
   });
 
   it('should set canEdit input correctly', () => {
+    setup();
     fixture.componentRef.setInput('canEdit', true);
     fixture.detectChanges();
 
@@ -70,16 +79,19 @@ describe('OverviewWikiComponent', () => {
   });
 
   it('should get isWikiLoading from store', () => {
+    setup();
     fixture.detectChanges();
     expect(component.isWikiLoading).toBeDefined();
   });
 
   it('should get wikiContent from store', () => {
+    setup();
     fixture.detectChanges();
     expect(component.wikiContent).toBeDefined();
   });
 
   it('should compute wiki link with resourceId', () => {
+    setup();
     fixture.componentRef.setInput('resourceId', mockResourceId);
     fixture.detectChanges();
 
@@ -87,12 +99,14 @@ describe('OverviewWikiComponent', () => {
   });
 
   it('should compute wiki link with empty resourceId', () => {
+    setup();
     fixture.detectChanges();
 
     expect(component.wikiLink()).toEqual(['/', '', 'wiki']);
   });
 
   it('should navigate to wiki link', () => {
+    setup();
     fixture.componentRef.setInput('resourceId', mockResourceId);
     fixture.detectChanges();
 
@@ -102,10 +116,21 @@ describe('OverviewWikiComponent', () => {
   });
 
   it('should navigate with empty resourceId', () => {
+    setup();
     fixture.detectChanges();
 
     component.navigateToWiki();
 
     expect(routerMock.navigate).toHaveBeenCalledWith(['/', '', 'wiki']);
   });
+
+  it('should compute disabledButtonTooltip based on isProjectReadOnly', () => {
+    setup([{ selector: UserSelectors.isProjectReadOnly, value: true }]);
+    fixture.detectChanges();
+    expect(component.disabledButtonTooltip()).toBe('common.errorMessages.actionUnavailable');
+
+    setup([{ selector: UserSelectors.isProjectReadOnly, value: false }]);
+    fixture.detectChanges();
+    expect(component.disabledButtonTooltip()).toBe('');
+  });
 });
diff --git a/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.ts b/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.ts
index f7bcd30c4..fcb1ae647 100644
--- a/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.ts
+++ b/src/app/features/project/overview/components/overview-wiki/overview-wiki.component.ts
@@ -4,17 +4,19 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Skeleton } from 'primeng/skeleton';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, computed, inject, input } from '@angular/core';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { MarkdownComponent } from '@osf/shared/components/markdown/markdown.component';
 import { TruncatedTextComponent } from '@osf/shared/components/truncated-text/truncated-text.component';
 import { WikiSelectors } from '@osf/shared/stores/wiki';
 
 @Component({
   selector: 'osf-overview-wiki',
-  imports: [Skeleton, TranslatePipe, TruncatedTextComponent, MarkdownComponent, Button],
+  imports: [Skeleton, Tooltip, TranslatePipe, TruncatedTextComponent, MarkdownComponent, Button],
   templateUrl: './overview-wiki.component.html',
   styleUrl: './overview-wiki.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -24,11 +26,13 @@ export class OverviewWikiComponent {
 
   isWikiLoading = select(WikiSelectors.getHomeWikiLoading);
   wikiContent = select(WikiSelectors.getHomeWikiContent);
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
 
   resourceId = input('');
   canEdit = input<boolean>(false);
 
   wikiLink = computed(() => ['/', this.resourceId(), 'wiki']);
+  disabledButtonTooltip = computed(() => (this.isProjectReadOnly() ? 'common.errorMessages.actionUnavailable' : ''));
 
   navigateToWiki() {
     this.router.navigate(this.wikiLink());
diff --git a/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.html b/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.html
index 463704e67..4ebbd829b 100644
--- a/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.html
+++ b/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.html
@@ -21,6 +21,8 @@ <h2>{{ 'common.labels.metadata' | translate }}</h2>
             [routerLink]="'../metadata'"
             severity="secondary"
             [label]="'common.buttons.edit' | translate"
+            [disabled]="isProjectReadOnly()"
+            [pTooltip]="disabledButtonTooltip() | translate"
           ></p-button>
         }
       </div>
diff --git a/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.spec.ts b/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.spec.ts
index 7bf51cdd0..846a7b0a8 100644
--- a/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.spec.ts
+++ b/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.spec.ts
@@ -7,6 +7,7 @@ import { Mock } from 'vitest';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import {
   GetCedarMetadataRecords,
   GetCedarMetadataTemplates,
@@ -34,7 +35,7 @@ import { FetchSelectedSubjects, SubjectsSelectors } from '@osf/shared/stores/sub
 import { MOCK_PROJECT_OVERVIEW } from '@testing/mocks/project-overview.mock';
 import { provideOSFCore } from '@testing/osf.testing.provider';
 import { RouterMockBuilder, RouterMockType } from '@testing/providers/router-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { mergeSignalOverrides, provideMockStore } from '@testing/providers/store-provider.mock';
 
 import {
   GetProjectIdentifiers,
@@ -59,6 +60,7 @@ describe('ProjectOverviewMetadataComponent', () => {
 
   interface SetupOverrides {
     project?: typeof MOCK_PROJECT_OVERVIEW | null;
+    selectorOverrides?: { selector: any; value: any }[];
   }
 
   function setup(overrides: SetupOverrides = {}) {
@@ -66,6 +68,34 @@ describe('ProjectOverviewMetadataComponent', () => {
     mockRouter = RouterMockBuilder.create().withUrl('/project/project-1/overview').build();
     metadataRecordsService = { downloadMetadata: vi.fn() };
 
+    const defaultSignals = [
+      { selector: ProjectOverviewSelectors.getProject, value: project },
+      { selector: ProjectOverviewSelectors.isProjectAnonymous, value: false },
+      { selector: ProjectOverviewSelectors.hasWriteAccess, value: true },
+      { selector: ProjectOverviewSelectors.getInstitutions, value: [] },
+      { selector: ProjectOverviewSelectors.isInstitutionsLoading, value: false },
+      { selector: ProjectOverviewSelectors.getIdentifiers, value: [] },
+      { selector: ProjectOverviewSelectors.isIdentifiersLoading, value: false },
+      { selector: ProjectOverviewSelectors.getLicense, value: null },
+      { selector: ProjectOverviewSelectors.isLicenseLoading, value: false },
+      { selector: ProjectOverviewSelectors.getPreprints, value: [] },
+      { selector: ProjectOverviewSelectors.isPreprintsLoading, value: false },
+      { selector: SubjectsSelectors.getSelectedSubjects, value: [] },
+      { selector: SubjectsSelectors.areSelectedSubjectsLoading, value: false },
+      { selector: ContributorsSelectors.getBibliographicContributors, value: [] },
+      { selector: ContributorsSelectors.isBibliographicContributorsLoading, value: false },
+      { selector: ContributorsSelectors.hasMoreBibliographicContributors, value: false },
+      { selector: CollectionsSelectors.getCurrentProjectSubmissions, value: [] },
+      { selector: CollectionsSelectors.getCurrentProjectSubmissionsLoading, value: false },
+      { selector: UserSelectors.getActiveFlags, value: [] },
+      { selector: UserSelectors.isProjectReadOnly, value: false },
+      { selector: MetadataSelectors.getCedarRecords, value: [] },
+      { selector: MetadataSelectors.getCedarTemplates, value: null },
+      { selector: MetadataSelectors.getCustomItemMetadata, value: null },
+      { selector: MetadataSelectors.isCustomItemMetadataLoading, value: false },
+    ];
+    const signals = mergeSignalOverrides(defaultSignals, overrides.selectorOverrides || []);
+
     TestBed.configureTestingModule({
       imports: [
         ProjectOverviewMetadataComponent,
@@ -87,30 +117,7 @@ describe('ProjectOverviewMetadataComponent', () => {
         MockProvider(MetadataRecordsService, metadataRecordsService),
         MockProvider(Router, mockRouter),
         provideMockStore({
-          signals: [
-            { selector: ProjectOverviewSelectors.getProject, value: project },
-            { selector: ProjectOverviewSelectors.isProjectAnonymous, value: false },
-            { selector: ProjectOverviewSelectors.hasWriteAccess, value: true },
-            { selector: ProjectOverviewSelectors.getInstitutions, value: [] },
-            { selector: ProjectOverviewSelectors.isInstitutionsLoading, value: false },
-            { selector: ProjectOverviewSelectors.getIdentifiers, value: [] },
-            { selector: ProjectOverviewSelectors.isIdentifiersLoading, value: false },
-            { selector: ProjectOverviewSelectors.getLicense, value: null },
-            { selector: ProjectOverviewSelectors.isLicenseLoading, value: false },
-            { selector: ProjectOverviewSelectors.getPreprints, value: [] },
-            { selector: ProjectOverviewSelectors.isPreprintsLoading, value: false },
-            { selector: SubjectsSelectors.getSelectedSubjects, value: [] },
-            { selector: SubjectsSelectors.areSelectedSubjectsLoading, value: false },
-            { selector: ContributorsSelectors.getBibliographicContributors, value: [] },
-            { selector: ContributorsSelectors.isBibliographicContributorsLoading, value: false },
-            { selector: ContributorsSelectors.hasMoreBibliographicContributors, value: false },
-            { selector: CollectionsSelectors.getCurrentProjectSubmissions, value: [] },
-            { selector: CollectionsSelectors.getCurrentProjectSubmissionsLoading, value: false },
-            { selector: MetadataSelectors.getCedarRecords, value: [] },
-            { selector: MetadataSelectors.getCedarTemplates, value: null },
-            { selector: MetadataSelectors.getCustomItemMetadata, value: null },
-            { selector: MetadataSelectors.isCustomItemMetadataLoading, value: false },
-          ],
+          signals: signals,
         }),
       ],
     });
@@ -208,4 +215,14 @@ describe('ProjectOverviewMetadataComponent', () => {
     expect(component.resourceType).toBe(CurrentResourceType.Projects);
     expect(component.dateFormat).toBe('MMM d, y, h:mm a');
   });
+
+  it('should compute disabledButtonTooltip based on isProjectReadOnly', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.detectChanges();
+    expect(component.disabledButtonTooltip()).toBe('common.errorMessages.actionUnavailable');
+
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    fixture.detectChanges();
+    expect(component.disabledButtonTooltip()).toBe('');
+  });
 });
diff --git a/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.ts b/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.ts
index 6cd5128d6..4ab4f60a5 100644
--- a/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.ts
+++ b/src/app/features/project/overview/components/project-overview-metadata/project-overview-metadata.component.ts
@@ -3,11 +3,13 @@ import { createDispatchMap, select } from '@ngxs/store';
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
+import { Tooltip } from 'primeng/tooltip';
 
 import { DatePipe } from '@angular/common';
 import { ChangeDetectionStrategy, Component, computed, effect, inject } from '@angular/core';
 import { Router, RouterLink } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import {
   GetCedarMetadataRecords,
   GetCedarMetadataTemplates,
@@ -53,6 +55,7 @@ import { OverviewSupplementsComponent } from '../overview-supplements/overview-s
     TranslatePipe,
     RouterLink,
     DatePipe,
+    Tooltip,
     TruncatedTextComponent,
     ResourceCitationsComponent,
     OverviewCollectionsComponent,
@@ -95,9 +98,13 @@ export class ProjectOverviewMetadataComponent {
   readonly hasMoreBibliographicContributors = select(ContributorsSelectors.hasMoreBibliographicContributors);
   readonly projectSubmissions = select(CollectionsSelectors.getCurrentProjectSubmissions);
   readonly isProjectSubmissionsLoading = select(CollectionsSelectors.getCurrentProjectSubmissionsLoading);
+  readonly isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
   readonly cedarRecords = select(MetadataSelectors.getCedarRecords);
-  private readonly cedarTemplatesResponse = select(MetadataSelectors.getCedarTemplates);
   readonly cedarTemplates = computed(() => this.cedarTemplatesResponse()?.data ?? null);
+  private readonly cedarTemplatesResponse = select(MetadataSelectors.getCedarTemplates);
+  readonly disabledButtonTooltip = computed(() =>
+    this.isProjectReadOnly() ? 'common.errorMessages.actionUnavailable' : ''
+  );
 
   readonly resourceType = CurrentResourceType.Projects;
   readonly dateFormat = 'MMM d, y, h:mm a';
diff --git a/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.html b/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.html
index cf3d39e99..9eb6149d4 100644
--- a/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.html
+++ b/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.html
@@ -9,12 +9,15 @@
           <p class="font-bold">{{ 'project.overview.header.privateProject' | translate }}</p>
         </div>
 
-        <p-toggleswitch
-          class="visibility-switch"
-          [ariaLabel]="'common.accessibility.toggleProjectVisibility' | translate"
-          [(ngModel)]="isPublic"
-          (onChange)="handleToggleProjectPublicity()"
-        />
+        <span [pTooltip]="projectReadOnlyTooltip() | translate">
+          <p-toggleswitch
+            class="visibility-switch"
+            [ariaLabel]="'common.accessibility.toggleProjectVisibility' | translate"
+            [(ngModel)]="isPublic"
+            (onChange)="handleToggleProjectPublicity()"
+            [disabled]="disableProjectPrivacyToggle()"
+          />
+        </span>
 
         <div class="flex gap-2" [class.inactive]="!isPublic()">
           <i class="fas fa-lock-open"></i>
@@ -59,23 +62,36 @@
             }
 
             @if (!viewOnly()) {
-              <p-button
-                class="flex"
-                (click)="forkActionMenu.toggle($event)"
-                [pTooltip]="'project.overview.tooltips.duplicate' | translate"
-                tooltipPosition="bottom"
-                [ariaLabel]="'project.overview.tooltips.duplicate' | translate"
-              >
-                <span class="font-bold">{{ resource.forksCount }}</span>
-                <i class="fas fa-clone text-2xl"></i>
-                <p-menu appendTo="body" #forkActionMenu [model]="forkActionItems" popup>
-                  <ng-template #item let-item>
-                    <a class="p-menu-item-link">
-                      {{ item.label | translate }}
-                    </a>
-                  </ng-template>
-                </p-menu>
-              </p-button>
+              @if (preventDuplicateCreation()) {
+                <p-button
+                  class="flex"
+                  (click)="navigateToDuplicatesView()"
+                  [pTooltip]="'project.overview.actions.viewDuplication' | translate"
+                  tooltipPosition="bottom"
+                  [ariaLabel]="'project.overview.actions.viewDuplication' | translate"
+                >
+                  <span class="font-bold">{{ resource.forksCount }}</span>
+                  <i class="fas fa-clone text-2xl"></i>
+                </p-button>
+              } @else {
+                <p-button
+                  class="flex"
+                  (click)="forkActionMenu.toggle($event)"
+                  [pTooltip]="'project.overview.tooltips.duplicate' | translate"
+                  tooltipPosition="bottom"
+                  [ariaLabel]="'project.overview.tooltips.duplicate' | translate"
+                >
+                  <span class="font-bold">{{ resource.forksCount }}</span>
+                  <i class="fas fa-clone text-2xl"></i>
+                  <p-menu appendTo="body" #forkActionMenu [model]="forkActionItems" popup>
+                    <ng-template #item let-item>
+                      <a class="p-menu-item-link">
+                        {{ item.label | translate }}
+                      </a>
+                    </ng-template>
+                  </p-menu>
+                </p-button>
+              }
             }
 
             @if (!viewOnly()) {
diff --git a/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.spec.ts b/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.spec.ts
index f405eccae..d31f29dbf 100644
--- a/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.spec.ts
+++ b/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.spec.ts
@@ -21,7 +21,7 @@ import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomDialogServiceMockBuilder } from '@testing/providers/custom-dialog-provider.mock';
 import { ActivatedRouteMockBuilder } from '@testing/providers/route-provider.mock';
 import { RouterMockBuilder } from '@testing/providers/router-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import { BaseSetupOverrides, mergeSignalOverrides, provideMockStore } from '@testing/providers/store-provider.mock';
 import { ToastServiceMock, ToastServiceMockType } from '@testing/providers/toast-provider.mock';
 
 import { ProjectOverviewModel } from '../../models';
@@ -29,6 +29,10 @@ import { TogglePublicityDialogComponent } from '../toggle-publicity-dialog/toggl
 
 import { ProjectOverviewToolbarComponent } from './project-overview-toolbar.component';
 
+interface SetupOverrides extends BaseSetupOverrides {
+  selectors?: any[];
+}
+
 describe('ProjectOverviewToolbarComponent', () => {
   let component: ProjectOverviewToolbarComponent;
   let fixture: ComponentFixture<ProjectOverviewToolbarComponent>;
@@ -51,25 +55,29 @@ describe('ProjectOverviewToolbarComponent', () => {
     storageUsage: '500MB',
   };
 
-  beforeEach(() => {
+  function setup(overrides: SetupOverrides = {}) {
     routerMock = RouterMockBuilder.create().build();
     activatedRouteMock = ActivatedRouteMockBuilder.create().build();
     customDialogServiceMock = CustomDialogServiceMockBuilder.create().withDefaultOpen().build();
     toastService = ToastServiceMock.simple();
+    const defaultSelectors = [
+      { selector: BookmarksSelectors.getBookmarksCollectionId, value: 'bookmarks-123' },
+      { selector: BookmarksSelectors.getBookmarks, value: [] },
+      { selector: BookmarksSelectors.areBookmarksLoading, value: false },
+      { selector: BookmarksSelectors.getBookmarksCollectionIdSubmitting, value: false },
+      { selector: ProjectOverviewSelectors.getDuplicatedProject, value: null },
+      { selector: UserSelectors.isAuthenticated, value: true },
+      { selector: UserSelectors.isProjectCreationDisabled, value: false },
+      { selector: UserSelectors.isProjectReadOnly, value: false },
+    ];
+    const signals = mergeSignalOverrides(defaultSelectors, overrides.selectors);
 
     TestBed.configureTestingModule({
       imports: [ProjectOverviewToolbarComponent, ...MockComponents(SocialsShareButtonComponent)],
       providers: [
         provideOSFCore(),
         provideMockStore({
-          signals: [
-            { selector: BookmarksSelectors.getBookmarksCollectionId, value: 'bookmarks-123' },
-            { selector: BookmarksSelectors.getBookmarks, value: [] },
-            { selector: BookmarksSelectors.areBookmarksLoading, value: false },
-            { selector: BookmarksSelectors.getBookmarksCollectionIdSubmitting, value: false },
-            { selector: ProjectOverviewSelectors.getDuplicatedProject, value: null },
-            { selector: UserSelectors.isAuthenticated, value: true },
-          ],
+          signals,
         }),
         MockProvider(Router, routerMock),
         MockProvider(ActivatedRoute, activatedRouteMock),
@@ -87,14 +95,16 @@ describe('ProjectOverviewToolbarComponent', () => {
     fixture.componentRef.setInput('currentResource', mockResource);
     fixture.componentRef.setInput('storage', mockStorage);
     fixture.componentRef.setInput('viewOnly', false);
-  });
+  }
 
   it('should create', () => {
+    setup();
     expect(component).toBeTruthy();
   });
 
   describe('Input Bindings', () => {
     it('should set canEdit input correctly', () => {
+      setup();
       fixture.componentRef.setInput('canEdit', false);
       fixture.detectChanges();
 
@@ -102,18 +112,22 @@ describe('ProjectOverviewToolbarComponent', () => {
     });
 
     it('should set currentResource input correctly', () => {
+      setup();
       expect(component.currentResource()).toEqual(mockResource);
     });
 
     it('should set storage input correctly', () => {
+      setup();
       expect(component.storage()).toEqual(mockStorage);
     });
 
     it('should default viewOnly to false', () => {
+      setup();
       expect(component.viewOnly()).toBe(false);
     });
 
     it('should set viewOnly input correctly', () => {
+      setup();
       fixture.componentRef.setInput('viewOnly', true);
       fixture.detectChanges();
 
@@ -123,12 +137,14 @@ describe('ProjectOverviewToolbarComponent', () => {
 
   describe('Effects', () => {
     it('should set isPublic from currentResource', () => {
+      setup();
       fixture.detectChanges();
 
       expect(component.isPublic()).toBe(true);
     });
 
     it('should dispatch getResourceBookmark when bookmarksId and resource exist', () => {
+      setup();
       fixture.detectChanges();
 
       expect(store.dispatch).toHaveBeenCalledWith(expect.any(GetResourceBookmark));
@@ -137,6 +153,9 @@ describe('ProjectOverviewToolbarComponent', () => {
 
   describe('handleToggleProjectPublicity', () => {
     it('should open TogglePublicityDialogComponent with makePrivate header when project is public', () => {
+      setup();
+      fixture.detectChanges();
+
       component.handleToggleProjectPublicity();
 
       expect(customDialogServiceMock.open).toHaveBeenCalledWith(TogglePublicityDialogComponent, {
@@ -150,6 +169,7 @@ describe('ProjectOverviewToolbarComponent', () => {
     });
 
     it('should open TogglePublicityDialogComponent with makePublic header when project is private', () => {
+      setup();
       fixture.componentRef.setInput('currentResource', { ...mockResource, isPublic: false });
       fixture.detectChanges();
 
@@ -166,6 +186,7 @@ describe('ProjectOverviewToolbarComponent', () => {
     });
 
     it('should not open dialog when resource is null', () => {
+      setup();
       fixture.componentRef.setInput('currentResource', null as any);
       fixture.detectChanges();
 
@@ -173,15 +194,83 @@ describe('ProjectOverviewToolbarComponent', () => {
 
       expect(customDialogServiceMock.open).not.toHaveBeenCalled();
     });
+
+    it('should compute disableProjectPrivacyToggle when isProjectReadOnly is false', () => {
+      setup();
+      fixture.detectChanges();
+
+      expect(component.isPublic()).toBe(true);
+      expect(component.disableProjectPrivacyToggle()).toBe(false);
+
+      fixture.componentRef.setInput('currentResource', { ...mockResource, isPublic: false });
+      fixture.detectChanges();
+
+      expect(component.isPublic()).toBe(false);
+      expect(component.disableProjectPrivacyToggle()).toBe(false);
+    });
+
+    it('should compute disableProjectPrivacyToggle when isProjectReadOnly is true', () => {
+      setup({ selectors: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+      fixture.detectChanges();
+
+      expect(component.isPublic()).toBe(true);
+      expect(component.disableProjectPrivacyToggle()).toBe(true);
+
+      fixture.componentRef.setInput('currentResource', { ...mockResource, isPublic: false });
+      fixture.detectChanges();
+
+      expect(component.isPublic()).toBe(false);
+      expect(component.disableProjectPrivacyToggle()).toBe(false);
+    });
   });
 
   describe('Properties', () => {
     it('should have ResourceType property', () => {
+      setup();
       expect(component.ResourceType).toBe(ResourceType);
     });
 
     it('should have resourceType set to Project', () => {
+      setup();
       expect(component.resourceType).toBe(ResourceType.Project);
     });
   });
+
+  describe('preventDuplicateCreation', () => {
+    it('should return false when isProjectCreationDisabled is false', () => {
+      setup();
+      expect(component.preventDuplicateCreation()).toBe(false);
+    });
+
+    it('should return true when isProjectCreationDisabled is true', () => {
+      setup({
+        selectors: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+      });
+      fixture.detectChanges();
+      expect(component.preventDuplicateCreation()).toBe(true);
+    });
+  });
+
+  describe('projectReadOnlyTooltip', () => {
+    it('should return empty string when isProjectReadOnly is false', () => {
+      setup();
+      expect(component.projectReadOnlyTooltip()).toBe('');
+
+      fixture.componentRef.setInput('currentResource', { ...mockResource, isPublic: false });
+      fixture.detectChanges();
+      expect(component.projectReadOnlyTooltip()).toBe('');
+    });
+
+    it('should return tooltip message when isProjectReadOnly is true', () => {
+      setup({
+        selectors: [{ selector: UserSelectors.isProjectReadOnly, value: true }],
+      });
+      fixture.detectChanges();
+      expect(component.projectReadOnlyTooltip()).toBe('common.errorMessages.actionUnavailable');
+
+      fixture.componentRef.setInput('currentResource', { ...mockResource, isPublic: false });
+      fixture.detectChanges();
+      expect(component.projectReadOnlyTooltip()).toBe('');
+    });
+  });
 });
diff --git a/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.ts b/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.ts
index 812e20ef2..01a7d2710 100644
--- a/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.ts
+++ b/src/app/features/project/overview/components/project-overview-toolbar/project-overview-toolbar.component.ts
@@ -9,7 +9,7 @@ import { Tooltip } from 'primeng/tooltip';
 
 import { timer } from 'rxjs';
 
-import { ChangeDetectionStrategy, Component, DestroyRef, effect, inject, input, signal } from '@angular/core';
+import { ChangeDetectionStrategy, Component, computed, DestroyRef, effect, inject, input, signal } from '@angular/core';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 import { FormsModule } from '@angular/forms';
 import { ActivatedRoute, Router, RouterLink } from '@angular/router';
@@ -75,6 +75,13 @@ export class ProjectOverviewToolbarComponent {
 
   duplicatedProject = select(ProjectOverviewSelectors.getDuplicatedProject);
   isAuthenticated = select(UserSelectors.isAuthenticated);
+  preventDuplicateCreation = select(UserSelectors.isProjectCreationDisabled);
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
+
+  disableProjectPrivacyToggle = computed(() => this.isProjectReadOnly() && this.isPublic());
+  projectReadOnlyTooltip = computed(() =>
+    this.disableProjectPrivacyToggle() ? 'common.errorMessages.actionUnavailable' : ''
+  );
 
   actions = createDispatchMap({
     getResourceBookmark: GetResourceBookmark,
@@ -96,9 +103,7 @@ export class ProjectOverviewToolbarComponent {
     },
     {
       label: 'project.overview.actions.viewDuplication',
-      command: () => {
-        this.router.navigate(['../analytics/duplicates'], { relativeTo: this.route });
-      },
+      command: () => this.navigateToDuplicatesView(),
     },
   ];
 
@@ -205,4 +210,8 @@ export class ProjectOverviewToolbarComponent {
         complete: () => this.actions.clearDuplicatedProject(),
       });
   }
+
+  navigateToDuplicatesView(): void {
+    this.router.navigate(['../analytics/duplicates'], { relativeTo: this.route });
+  }
 }
diff --git a/src/app/features/project/project-addons/project-addons.component.html b/src/app/features/project/project-addons/project-addons.component.html
index 3fcf71ec0..4d4691b15 100644
--- a/src/app/features/project/project-addons/project-addons.component.html
+++ b/src/app/features/project/project-addons/project-addons.component.html
@@ -1,4 +1,4 @@
-<osf-sub-header [title]="'settings.addons.header.title' | translate" />
+<osf-sub-header [title]="'settings.addons.header' | translate" />
 <section class="flex-column flex flex-1">
   <p-tabs [(value)]="selectedTab" class="flex flex-1">
     <p-tablist class="pr-5 pl-5 hidden md:flex md:flex-column">
diff --git a/src/app/features/project/registrations/registrations.component.html b/src/app/features/project/registrations/registrations.component.html
index 34300b4eb..293ce351e 100644
--- a/src/app/features/project/registrations/registrations.component.html
+++ b/src/app/features/project/registrations/registrations.component.html
@@ -1,6 +1,8 @@
 <osf-sub-header
   [showButton]="hasAdminAccess()"
   [buttonLabel]="'project.registrations.addRegistration' | translate"
+  [isButtonDisabled]="isProjectReadOnly()"
+  [buttonTooltip]="(isProjectReadOnly() ? 'common.errorMessages.actionUnavailable' : '') | translate"
   [title]="'navigation.registrations' | translate"
   (buttonClick)="addRegistration()"
 />
diff --git a/src/app/features/project/registrations/registrations.component.ts b/src/app/features/project/registrations/registrations.component.ts
index c40fee384..fe7cd6452 100644
--- a/src/app/features/project/registrations/registrations.component.ts
+++ b/src/app/features/project/registrations/registrations.component.ts
@@ -12,6 +12,7 @@ import { FormsModule } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 
 import { ENVIRONMENT } from '@core/provider/environment.provider';
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { CustomPaginatorComponent } from '@osf/shared/components/custom-paginator/custom-paginator.component';
 import { LoadingSpinnerComponent } from '@osf/shared/components/loading-spinner/loading-spinner.component';
 import { RegistrationCardComponent } from '@osf/shared/components/registration-card/registration-card.component';
@@ -45,6 +46,7 @@ export class RegistrationsComponent implements OnInit {
   registrations = select(RegistrationsSelectors.getRegistrations);
   registrationsTotalCount = select(RegistrationsSelectors.getRegistrationsTotalCount);
   isRegistrationsLoading = select(RegistrationsSelectors.isRegistrationsLoading);
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
   actions = createDispatchMap({ getRegistrations: GetRegistrations });
 
   itemsPerPage = 10;
diff --git a/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.html b/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.html
index 6217d6f0a..256064bd5 100644
--- a/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.html
+++ b/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.html
@@ -8,6 +8,7 @@ <h2 class="pb-4">{{ 'myProjects.settings.emailNotifications' | translate }}</h2>
       (emitValueChange)="changeEmittedValue($event)"
       [rightControls]="allAccordionData"
       [title]="title()"
+      [disabledRightControls]="isProjectReadOnly()"
     >
       <div class="flex align-items-baseline gap-2 mt-2">
         <i class="fas fa-minus text-sm p-3"></i>
diff --git a/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.spec.ts b/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.spec.ts
index 5bc3a27b3..358b8cfbb 100644
--- a/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.spec.ts
+++ b/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.spec.ts
@@ -2,11 +2,13 @@ import { MockComponent, MockPipe } from 'ng-mocks';
 
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { SubscriptionEvent } from '@osf/shared/enums/subscriptions/subscription-event.enum';
 import { SubscriptionFrequency } from '@osf/shared/enums/subscriptions/subscription-frequency.enum';
 
 import { MOCK_NOTIFICATION_SUBSCRIPTIONS } from '@testing/mocks/notification-subscription.mock';
 import { provideOSFCore } from '@testing/osf.testing.provider';
+import { provideMockStore } from '@testing/providers/store-provider.mock';
 
 import { NotificationDescriptionPipe } from '../../pipes';
 import { ProjectDetailSettingAccordionComponent } from '../project-detail-setting-accordion/project-detail-setting-accordion.component';
@@ -26,7 +28,17 @@ describe('ProjectSettingNotificationsComponent', () => {
         MockComponent(ProjectDetailSettingAccordionComponent),
         MockPipe(NotificationDescriptionPipe),
       ],
-      providers: [provideOSFCore()],
+      providers: [
+        provideOSFCore(),
+        provideMockStore({
+          signals: [
+            {
+              selector: UserSelectors.isProjectReadOnly,
+              value: false,
+            },
+          ],
+        }),
+      ],
     });
 
     fixture = TestBed.createComponent(ProjectSettingNotificationsComponent);
diff --git a/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.ts b/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.ts
index db78d8652..60b08d172 100644
--- a/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.ts
+++ b/src/app/features/project/settings/components/project-setting-notifications/project-setting-notifications.component.ts
@@ -1,9 +1,12 @@
+import { select } from '@ngxs/store';
+
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Card } from 'primeng/card';
 
 import { ChangeDetectionStrategy, Component, effect, input, output } from '@angular/core';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { SubscriptionEvent } from '@osf/shared/enums/subscriptions/subscription-event.enum';
 import { SubscriptionFrequency } from '@osf/shared/enums/subscriptions/subscription-frequency.enum';
 import { NotificationSubscription } from '@osf/shared/models/notifications/notification-subscription.model';
@@ -24,6 +27,8 @@ export class ProjectSettingNotificationsComponent {
   title = input<string>();
   notificationEmitValue = output<NotificationSubscription>();
 
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
+
   allAccordionData: RightControl[] | undefined = [];
 
   readonly subscriptionEvent = SubscriptionEvent;
diff --git a/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.html b/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.html
index 92630f256..a33e82818 100644
--- a/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.html
+++ b/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.html
@@ -6,11 +6,16 @@ <h2 class="pb-4">{{ 'myProjects.settings.accessRequests' | translate }}</h2>
       [binary]="true"
       [ngModel]="accessRequest()"
       (ngModelChange)="accessRequestChange.emit($event)"
+      [disabled]="isProjectReadOnly()"
       inputId="accessRequest"
       name="ongoing"
     ></p-checkbox>
 
-    <label class="mb-0 ml-2 cursor-pointer" [for]="'accessRequest'">
+    <label
+      [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
+      class="mb-0 ml-2 cursor-pointer"
+      [for]="'accessRequest'"
+    >
       {{ 'myProjects.settings.accessRequestsText' | translate }}
     </label>
   </div>
diff --git a/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.spec.ts b/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.spec.ts
index b304d9bab..6b1ec3d2f 100644
--- a/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.spec.ts
+++ b/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.spec.ts
@@ -1,6 +1,9 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
+
 import { provideOSFCore } from '@testing/osf.testing.provider';
+import { provideMockStore } from '@testing/providers/store-provider.mock';
 
 import { SettingsAccessRequestsCardComponent } from './settings-access-requests-card.component';
 
@@ -11,7 +14,17 @@ describe('SettingsAccessRequestsCardComponent', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
       imports: [SettingsAccessRequestsCardComponent],
-      providers: [provideOSFCore()],
+      providers: [
+        provideOSFCore(),
+        provideMockStore({
+          signals: [
+            {
+              selector: UserSelectors.isProjectReadOnly,
+              value: false,
+            },
+          ],
+        }),
+      ],
     });
 
     fixture = TestBed.createComponent(SettingsAccessRequestsCardComponent);
diff --git a/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.ts b/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.ts
index 546c81de0..9bb5ef12f 100644
--- a/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.ts
+++ b/src/app/features/project/settings/components/settings-access-requests-card/settings-access-requests-card.component.ts
@@ -1,14 +1,19 @@
+import { select } from '@ngxs/store';
+
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Card } from 'primeng/card';
 import { Checkbox } from 'primeng/checkbox';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, input, output } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 
+import { UserSelectors } from '@osf/core/store/user';
+
 @Component({
   selector: 'osf-settings-access-requests-card',
-  imports: [Checkbox, TranslatePipe, Card, FormsModule],
+  imports: [Checkbox, TranslatePipe, Card, FormsModule, Tooltip],
   templateUrl: './settings-access-requests-card.component.html',
   styleUrl: './settings-access-requests-card.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -16,4 +21,5 @@ import { FormsModule } from '@angular/forms';
 export class SettingsAccessRequestsCardComponent {
   accessRequestChange = output<boolean>();
   accessRequest = input.required<boolean>();
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
 }
diff --git a/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.html b/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.html
index 9c277665e..760a99079 100644
--- a/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.html
+++ b/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.html
@@ -28,6 +28,8 @@ <h3 class="text-xl pb-4">{{ 'myProjects.settings.projectAffiliation' | translate
 
           @if (canRemoveAffiliation(affiliation)) {
             <p-button
+              [disabled]="isProjectReadOnly()"
+              [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
               class="danger-icon-btn"
               icon="fas fa-trash"
               severity="danger"
diff --git a/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.ts b/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.ts
index 112511600..a05a60219 100644
--- a/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.ts
+++ b/src/app/features/project/settings/components/settings-project-affiliation/settings-project-affiliation.component.ts
@@ -4,16 +4,18 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
+import { Tooltip } from 'primeng/tooltip';
 
 import { NgOptimizedImage } from '@angular/common';
 import { ChangeDetectionStrategy, Component, computed, input, OnInit, output } from '@angular/core';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { Institution } from '@osf/shared/models/institutions/institutions.model';
 import { FetchUserInstitutions, InstitutionsSelectors } from '@shared/stores/institutions';
 
 @Component({
   selector: 'osf-settings-project-affiliation',
-  imports: [Card, Button, NgOptimizedImage, TranslatePipe],
+  imports: [Card, Button, NgOptimizedImage, TranslatePipe, Tooltip],
   templateUrl: './settings-project-affiliation.component.html',
   styleUrl: './settings-project-affiliation.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -25,6 +27,7 @@ export class SettingsProjectAffiliationComponent implements OnInit {
   removed = output<Institution>();
 
   userInstitutions = select(InstitutionsSelectors.getUserInstitutions);
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
 
   readonly userInstitutionIds = computed(() => new Set(this.userInstitutions().map((inst) => inst.id)));
 
diff --git a/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.html b/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.html
index 89a6a9a3f..8e49ab4cd 100644
--- a/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.html
+++ b/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.html
@@ -29,7 +29,8 @@ <h2 class="pb-4">{{ 'common.labels.project' | translate }}</h2>
         type="submit"
         class="w-10rem btn-full-width bg-primary-blue-second"
         [label]="'myProjects.settings.saveChanges' | translate"
-        [disabled]="projectForm.invalid"
+        [disabled]="projectForm.invalid || isProjectReadonly()"
+        [pTooltip]="(isProjectReadonly() ? 'common.errorMessages.actionUnavailable' : '') | translate"
       ></p-button>
     </div>
 
diff --git a/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.spec.ts b/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.spec.ts
index 027dbea4e..dcfbbcb63 100644
--- a/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.spec.ts
+++ b/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.spec.ts
@@ -9,6 +9,7 @@ import { ProjectFormControls } from '@osf/shared/enums/create-project-form-contr
 
 import { MOCK_NODE_DETAILS } from '@testing/mocks/node-details.mock';
 import { provideOSFCore } from '@testing/osf.testing.provider';
+import { provideMockStore } from '@testing/providers/store-provider.mock';
 
 import { NodeDetailsModel } from '../../models';
 
@@ -23,7 +24,7 @@ describe('SettingsProjectFormCardComponent', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
       imports: [SettingsProjectFormCardComponent, MockComponent(TextInputComponent), MockDirective(Textarea)],
-      providers: [provideOSFCore()],
+      providers: [provideOSFCore(), provideMockStore()],
     });
 
     fixture = TestBed.createComponent(SettingsProjectFormCardComponent);
diff --git a/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.ts b/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.ts
index 06621b004..c04d69a7e 100644
--- a/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.ts
+++ b/src/app/features/project/settings/components/settings-project-form-card/settings-project-form-card.component.ts
@@ -1,12 +1,16 @@
+import { select } from '@ngxs/store';
+
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { Card } from 'primeng/card';
 import { Textarea } from 'primeng/textarea';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, computed, effect, input, output } from '@angular/core';
 import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { TextInputComponent } from '@osf/shared/components/text-input/text-input.component';
 import { InputLimits } from '@osf/shared/constants/input-limits.const';
 import { ProjectFormControls } from '@osf/shared/enums/create-project-form-controls.enum';
@@ -16,7 +20,7 @@ import { NodeDetailsModel, ProjectDetailsModel } from '../../models';
 
 @Component({
   selector: 'osf-settings-project-form-card',
-  imports: [Button, Card, Textarea, TranslatePipe, ReactiveFormsModule, TextInputComponent],
+  imports: [Button, Card, Textarea, TranslatePipe, ReactiveFormsModule, TextInputComponent, Tooltip],
   templateUrl: './settings-project-form-card.component.html',
   styleUrl: 'settings-project-form-card.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -30,6 +34,8 @@ export class SettingsProjectFormCardComponent {
   readonly ProjectFormControls = ProjectFormControls;
   readonly inputLimits = InputLimits;
 
+  readonly isProjectReadonly = select(UserSelectors.isProjectReadOnly);
+
   projectForm = new FormGroup({
     [ProjectFormControls.Title]: new FormControl('', CustomValidators.requiredTrimmed()),
     [ProjectFormControls.Description]: new FormControl(''),
diff --git a/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.html b/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.html
index e563c4ba9..54cb69241 100644
--- a/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.html
+++ b/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.html
@@ -6,30 +6,37 @@ <h2 class="pb-4">{{ 'myProjects.settings.wiki' | translate }}</h2>
       [binary]="true"
       [ngModel]="wikiEnabled()"
       (ngModelChange)="wikiChangeEmit.emit($event)"
+      [disabled]="isProjectReadOnly()"
       inputId="wiki"
       name="ongoing"
     ></p-checkbox>
 
-    <label class="mb-0 ml-2" [for]="'wiki'">
+    <label
+      [pTooltip]="isProjectReadOnly() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
+      class="mb-0 ml-2"
+      [for]="'wiki'"
+    >
       {{ 'myProjects.settings.wikiText' | translate: { projectName: title() } }}
     </label>
   </div>
 
-  <h2 class="py-4">{{ 'myProjects.settings.wikiConfigureTitle' | translate }}</h2>
+  @if (!isProjectReadOnly()) {
+    <h2 class="py-4">{{ 'myProjects.settings.wikiConfigureTitle' | translate }}</h2>
 
-  <p class="pb-4">{{ 'myProjects.settings.wikiConfigureText' | translate }}</p>
+    <p class="pb-4">{{ 'myProjects.settings.wikiConfigureText' | translate }}</p>
 
-  <osf-project-detail-setting-accordion
-    (emitValueChange)="changeEmittedValue($event)"
-    [title]="title()"
-    [rightControls]="allAccordionData"
-    [disabledRightControls]="!isPublic()"
-  >
-    <div class="flex align-items-baseline gap-2">
-      <i class="fas fa-minus text-sm p-3"></i>
-      <span>
-        {{ 'myProjects.settings.' + (anyoneCanEditWiki() ? 'enabledForWiki' : 'disabledForWiki') | translate }}
-      </span>
-    </div>
-  </osf-project-detail-setting-accordion>
+    <osf-project-detail-setting-accordion
+      (emitValueChange)="changeEmittedValue($event)"
+      [title]="title()"
+      [rightControls]="allAccordionData"
+      [disabledRightControls]="!isPublic() || isProjectReadOnly()"
+    >
+      <div class="flex align-items-baseline gap-2">
+        <i class="fas fa-minus text-sm p-3"></i>
+        <span>
+          {{ 'myProjects.settings.' + (anyoneCanEditWiki() ? 'enabledForWiki' : 'disabledForWiki') | translate }}
+        </span>
+      </div>
+    </osf-project-detail-setting-accordion>
+  }
 </p-card>
diff --git a/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.spec.ts b/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.spec.ts
index c87e90ad6..331f9b2ee 100644
--- a/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.spec.ts
+++ b/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.spec.ts
@@ -2,7 +2,10 @@ import { MockComponent } from 'ng-mocks';
 
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
+
 import { provideOSFCore } from '@testing/osf.testing.provider';
+import { provideMockStore } from '@testing/providers/store-provider.mock';
 
 import { ProjectDetailSettingAccordionComponent } from '../project-detail-setting-accordion/project-detail-setting-accordion.component';
 
@@ -20,7 +23,17 @@ describe('SettingsWikiCardComponent', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
       imports: [SettingsWikiCardComponent, MockComponent(ProjectDetailSettingAccordionComponent)],
-      providers: [provideOSFCore()],
+      providers: [
+        provideOSFCore(),
+        provideMockStore({
+          signals: [
+            {
+              selector: UserSelectors.isProjectReadOnly,
+              value: false,
+            },
+          ],
+        }),
+      ],
     });
 
     fixture = TestBed.createComponent(SettingsWikiCardComponent);
diff --git a/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.ts b/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.ts
index 3360eccab..9c341b5fb 100644
--- a/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.ts
+++ b/src/app/features/project/settings/components/settings-wiki-card/settings-wiki-card.component.ts
@@ -1,17 +1,22 @@
+import { select } from '@ngxs/store';
+
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Card } from 'primeng/card';
 import { Checkbox } from 'primeng/checkbox';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, effect, input, output } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
+
 import { RightControl } from '../../models';
 import { ProjectDetailSettingAccordionComponent } from '../project-detail-setting-accordion/project-detail-setting-accordion.component';
 
 @Component({
   selector: 'osf-settings-wiki-card',
-  imports: [Card, Checkbox, TranslatePipe, ProjectDetailSettingAccordionComponent, FormsModule],
+  imports: [Card, Checkbox, Tooltip, TranslatePipe, ProjectDetailSettingAccordionComponent, FormsModule],
   templateUrl: './settings-wiki-card.component.html',
   styleUrl: './settings-wiki-card.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -25,6 +30,8 @@ export class SettingsWikiCardComponent {
   title = input.required<string>();
   isPublic = input(false);
 
+  isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
+
   allAccordionData: RightControl[] = [];
 
   constructor() {
diff --git a/src/app/features/project/wiki/wiki.component.html b/src/app/features/project/wiki/wiki.component.html
index 1170e5508..2faa27f01 100644
--- a/src/app/features/project/wiki/wiki.component.html
+++ b/src/app/features/project/wiki/wiki.component.html
@@ -10,6 +10,8 @@
         [label]="'common.buttons.edit' | translate"
         [variant]="wikiModes().edit ? undefined : 'outlined'"
         (onClick)="toggleMode(WikiModes.Edit)"
+        [disabled]="disableWikiEdit()"
+        [pTooltip]="disabledEditTooltip() | translate"
       />
     }
     <p-button
@@ -53,6 +55,7 @@
       [versionContent]="versionContent()"
       (contentChange)="updateWikiPreviewContent($event)"
       [isSaving]="isWikiVersionSubmitting()"
+      [disableSaveButton]="disableWikiEdit()"
       (saveContent)="onSaveContent($event)"
     ></osf-edit-section>
   }
diff --git a/src/app/features/project/wiki/wiki.component.spec.ts b/src/app/features/project/wiki/wiki.component.spec.ts
index c75b1b6dd..6623c4e1c 100644
--- a/src/app/features/project/wiki/wiki.component.spec.ts
+++ b/src/app/features/project/wiki/wiki.component.spec.ts
@@ -10,6 +10,7 @@ import { PLATFORM_ID } from '@angular/core';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { SubHeaderComponent } from '@osf/shared/components/sub-header/sub-header.component';
 import { ViewOnlyLinkMessageComponent } from '@osf/shared/components/view-only-link-message/view-only-link-message.component';
 import { CompareSectionComponent } from '@osf/shared/components/wiki/compare-section/compare-section.component';
@@ -74,6 +75,7 @@ describe('WikiComponent', () => {
     { selector: WikiSelectors.getCompareVersionsLoading, value: false },
     { selector: WikiSelectors.isWikiAnonymous, value: false },
     { selector: CurrentResourceSelectors.hasWriteAccess, value: true },
+    { selector: UserSelectors.isProjectReadOnly, value: false },
   ];
 
   function setup({
@@ -252,4 +254,19 @@ describe('WikiComponent', () => {
 
     expect(store.dispatch).toHaveBeenCalledWith(new ClearWiki());
   });
+
+  it('should disable the wiki edit button and show tooltip when isProjectReadOnly is true', async () => {
+    setup({
+      hasWriteAccess: true,
+      selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }],
+    });
+    await fixture.whenStable();
+
+    expect(component.disabledEditTooltip()).toBe('common.errorMessages.actionUnavailable');
+
+    setup({ hasWriteAccess: true, selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    await fixture.whenStable();
+
+    expect(component.disabledEditTooltip()).toBe('');
+  });
 });
diff --git a/src/app/features/project/wiki/wiki.component.ts b/src/app/features/project/wiki/wiki.component.ts
index ea96d56c0..2c82b1674 100644
--- a/src/app/features/project/wiki/wiki.component.ts
+++ b/src/app/features/project/wiki/wiki.component.ts
@@ -4,6 +4,7 @@ import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
 import { ButtonGroupModule } from 'primeng/buttongroup';
+import { Tooltip } from 'primeng/tooltip';
 
 import { filter, map, mergeMap, of, tap } from 'rxjs';
 
@@ -12,6 +13,7 @@ import { ChangeDetectionStrategy, Component, computed, DestroyRef, inject, PLATF
 import { takeUntilDestroyed, toSignal } from '@angular/core/rxjs-interop';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { SubHeaderComponent } from '@osf/shared/components/sub-header/sub-header.component';
 import { CompareSectionComponent } from '@osf/shared/components/wiki/compare-section/compare-section.component';
 import { EditSectionComponent } from '@osf/shared/components/wiki/edit-section/edit-section.component';
@@ -39,7 +41,6 @@ import {
   WikiSelectors,
 } from '@osf/shared/stores/wiki';
 import { ViewOnlyLinkMessageComponent } from '@shared/components/view-only-link-message/view-only-link-message.component';
-
 @Component({
   selector: 'osf-wiki',
   imports: [
@@ -51,6 +52,7 @@ import { ViewOnlyLinkMessageComponent } from '@shared/components/view-only-link-
     EditSectionComponent,
     CompareSectionComponent,
     ViewOnlyLinkMessageComponent,
+    Tooltip,
     TranslatePipe,
   ],
   templateUrl: './wiki.component.html',
@@ -83,6 +85,7 @@ export class WikiComponent {
   isCompareVersionLoading = select(WikiSelectors.getCompareVersionsLoading);
   isAnonymous = select(WikiSelectors.isWikiAnonymous);
   hasWriteAccess = select(CurrentResourceSelectors.hasWriteAccess);
+  disableWikiEdit = select(UserSelectors.isProjectReadOnly);
 
   actions = createDispatchMap({
     getWikiModes: GetWikiModes,
@@ -105,6 +108,10 @@ export class WikiComponent {
 
   readonly hasViewOnly = computed(() => this.viewOnlyService.hasViewOnlyParam(this.router));
 
+  readonly disabledEditTooltip = computed(() =>
+    this.disableWikiEdit() ? 'common.errorMessages.actionUnavailable' : ''
+  );
+
   constructor() {
     this.actions
       .getWikiList(ResourceType.Project, this.projectId())
diff --git a/src/app/features/registries/components/custom-step/custom-step.component.html b/src/app/features/registries/components/custom-step/custom-step.component.html
index edd5941bf..f161452d6 100644
--- a/src/app/features/registries/components/custom-step/custom-step.component.html
+++ b/src/app/features/registries/components/custom-step/custom-step.component.html
@@ -160,7 +160,7 @@ <h3 class="mb-2">{{ 'files.actions.uploadFile' | translate }}</h3>
                 {{ 'shared.files.limitText' | translate }}
               </p>
               <p>
-                {{ 'shared.files.description' | translate }}
+                {{ fileUploadDescription() | translate }}
               </p>
               <div class="flex flex-wrap gap-2 mt-3 mb-3">
                 @for (file of attachedFiles[q.responseKey!] || []; track file) {
diff --git a/src/app/features/registries/components/custom-step/custom-step.component.spec.ts b/src/app/features/registries/components/custom-step/custom-step.component.spec.ts
index b01fd3e86..409a5d1b3 100644
--- a/src/app/features/registries/components/custom-step/custom-step.component.spec.ts
+++ b/src/app/features/registries/components/custom-step/custom-step.component.spec.ts
@@ -8,6 +8,7 @@ import { TestBed } from '@angular/core/testing';
 import { FormGroup } from '@angular/forms';
 import { ActivatedRoute, Router, UrlTree } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { InfoIconComponent } from '@osf/shared/components/info-icon/info-icon.component';
 import { FieldType } from '@osf/shared/enums/field-type.enum';
 import { ToastService } from '@osf/shared/services/toast.service';
@@ -68,6 +69,7 @@ describe('CustomStepComponent', () => {
     const defaultSignals: SignalOverride[] = [
       { selector: RegistriesSelectors.getPagesSchema, value: overrides.pages ?? [MOCK_REGISTRIES_PAGE] },
       { selector: RegistriesSelectors.getStepsState, value: overrides.stepsState ?? {} },
+      { selector: UserSelectors.isProjectCreationDisabled, value: false },
     ];
     const signals = mergeSignalOverrides(defaultSignals, overrides.selectorOverrides);
 
@@ -165,6 +167,18 @@ describe('CustomStepComponent', () => {
     expect(store.dispatch).not.toHaveBeenCalled();
   });
 
+  it('should update file upload description based on isProjectCreationDisabled', () => {
+    const { component } = setup({
+      selectorOverrides: [{ selector: UserSelectors.isProjectCreationDisabled, value: true }],
+    });
+    expect(component.fileUploadDescription()).toBe('shared.files.descriptionNoProject');
+
+    const { component: component2 } = setup({
+      selectorOverrides: [{ selector: UserSelectors.isProjectCreationDisabled, value: false }],
+    });
+    expect(component2.fileUploadDescription()).toBe('shared.files.description');
+  });
+
   it('should attach file and emit updateAction', () => {
     const { component } = setup();
     const emitSpy = vi.spyOn(component.updateAction, 'emit');
diff --git a/src/app/features/registries/components/custom-step/custom-step.component.ts b/src/app/features/registries/components/custom-step/custom-step.component.ts
index 571ba03fb..ce1d26fc7 100644
--- a/src/app/features/registries/components/custom-step/custom-step.component.ts
+++ b/src/app/features/registries/components/custom-step/custom-step.component.ts
@@ -29,6 +29,7 @@ import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 import { FormBuilder, FormControl, FormGroup, ReactiveFormsModule, Validators } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { InfoIconComponent } from '@osf/shared/components/info-icon/info-icon.component';
 import { FILE_COUNT_ATTACHMENTS_LIMIT } from '@osf/shared/constants/files-limits.const';
 import { INPUT_VALIDATION_MESSAGES } from '@osf/shared/constants/input-validation-messages.const';
@@ -87,6 +88,7 @@ export class CustomStepComponent implements OnDestroy {
 
   readonly pages = select(RegistriesSelectors.getPagesSchema);
   readonly stepsState = select(RegistriesSelectors.getStepsState);
+  readonly projectCreationDisabled = select(UserSelectors.isProjectCreationDisabled);
 
   private readonly actions = createDispatchMap({
     updateStepState: UpdateStepState,
@@ -99,6 +101,12 @@ export class CustomStepComponent implements OnDestroy {
   step = signal(this.route.snapshot.params['step']);
   draftId = signal(this.route.snapshot.params['id']);
   currentPage = computed(() => this.pages()[this.step() - 1]);
+  readonly fileUploadDescription = computed(() => {
+    if (this.projectCreationDisabled()) {
+      return 'shared.files.descriptionNoProject';
+    }
+    return 'shared.files.description';
+  });
 
   stepForm: FormGroup = this.fb.group({});
   attachedFiles: Record<string, AttachedFile[]> = {};
diff --git a/src/app/features/registries/components/new-registration/new-registration.component.html b/src/app/features/registries/components/new-registration/new-registration.component.html
index 4a6387438..b6bbed2da 100644
--- a/src/app/features/registries/components/new-registration/new-registration.component.html
+++ b/src/app/features/registries/components/new-registration/new-registration.component.html
@@ -11,28 +11,30 @@
     </section>
 
     <section class="flex flex-column flex-1 p-5 gap-4 w-full bg-white">
-      <p-card class="w-full">
-        <h2 class="mb-4">{{ 'registries.new.steps.title' | translate }} 1</h2>
-        <p class="mb-4 text-lg font-bold">{{ 'registries.new.steps.existingProjectQuestion' | translate }}</p>
-        <div class="flex gap-2">
-          <p-button
-            class="btn-full-width w-2 font-bold"
-            [class]="{ 'pointer-events-none': fromProject() }"
-            severity="info"
-            [label]="'common.buttons.yes' | translate"
-            [raised]="fromProject()"
-            (onClick)="toggleFromProject()"
-          />
-          <p-button
-            class="btn-full-width w-2"
-            [class]="{ 'pointer-events-none': !fromProject() }"
-            severity="info"
-            [label]="'common.buttons.no' | translate"
-            [raised]="!fromProject()"
-            (onClick)="toggleFromProject()"
-          />
-        </div>
-      </p-card>
+      @if (!isProjectReadOnly()) {
+        <p-card class="w-full">
+          <h2 class="mb-4">{{ 'registries.new.steps.title' | translate }} 1</h2>
+          <p class="mb-4 text-lg font-bold">{{ 'registries.new.steps.existingProjectQuestion' | translate }}</p>
+          <div class="flex gap-2">
+            <p-button
+              class="btn-full-width w-2 font-bold"
+              [class]="{ 'pointer-events-none': fromProject() }"
+              severity="info"
+              [label]="'common.buttons.yes' | translate"
+              [raised]="fromProject()"
+              (onClick)="toggleFromProject()"
+            />
+            <p-button
+              class="btn-full-width w-2"
+              [class]="{ 'pointer-events-none': !fromProject() }"
+              severity="info"
+              [label]="'common.buttons.no' | translate"
+              [raised]="!fromProject()"
+              (onClick)="toggleFromProject()"
+            />
+          </div>
+        </p-card>
+      }
 
       <form [formGroup]="draftForm" (ngSubmit)="createDraft()" class="flex flex-column gap-4">
         @if (fromProject()) {
@@ -58,7 +60,9 @@ <h2 class="mb-4">{{ 'registries.new.steps.title' | translate }} 2</h2>
         }
 
         <p-card class="w-full">
-          <h2 class="mb-4">{{ 'registries.new.steps.title' | translate }} {{ fromProject() ? '3' : '2' }}</h2>
+          @if (!isProjectReadOnly()) {
+            <h2 class="mb-4">{{ 'registries.new.steps.title' | translate }} {{ fromProject() ? '3' : '2' }}</h2>
+          }
           <p class="mb-4 text-lg font-bold">{{ 'registries.new.steps.registrationTypeQuestion' | translate }}</p>
           <div class="flex">
             <p-select
diff --git a/src/app/features/registries/components/new-registration/new-registration.component.spec.ts b/src/app/features/registries/components/new-registration/new-registration.component.spec.ts
index 183615eb0..eb0d3cc64 100644
--- a/src/app/features/registries/components/new-registration/new-registration.component.spec.ts
+++ b/src/app/features/registries/components/new-registration/new-registration.component.spec.ts
@@ -46,6 +46,7 @@ describe('NewRegistrationComponent', () => {
     { selector: RegistriesSelectors.isProvidersLoading, value: false },
     { selector: RegistriesSelectors.isProjectsLoading, value: false },
     { selector: UserSelectors.getCurrentUser, value: { id: 'user-1' } },
+    { selector: UserSelectors.isProjectReadOnly, value: false },
     { selector: RegistrationProviderSelectors.getBrandedProvider, value: { id: 'prov-1', allowSubmissions: true } },
   ];
 
@@ -129,6 +130,13 @@ describe('NewRegistrationComponent', () => {
     expect(component.fromProject()).toBe(true);
   });
 
+  it('should not show project panel when projectId is present, but isProjectReadOnly is true', () => {
+    setup({
+      selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }],
+    });
+    expect(component.fromProject()).toBe(false);
+  });
+
   it('should init form with project id from route', () => {
     setup();
     expect(component.draftForm.get('project')?.value).toBe('proj-1');
diff --git a/src/app/features/registries/components/new-registration/new-registration.component.ts b/src/app/features/registries/components/new-registration/new-registration.component.ts
index 8fc36948b..95cdc1ae6 100644
--- a/src/app/features/registries/components/new-registration/new-registration.component.ts
+++ b/src/app/features/registries/components/new-registration/new-registration.component.ts
@@ -42,6 +42,7 @@ export class NewRegistrationComponent {
   readonly isDraftSubmitting = select(RegistriesSelectors.isDraftSubmitting);
   readonly isProvidersLoading = select(RegistriesSelectors.isProvidersLoading);
   readonly isProjectsLoading = select(RegistriesSelectors.isProjectsLoading);
+  readonly isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
   private readonly draftRegistration = select(RegistriesSelectors.getDraftRegistration);
 
   readonly canShowForm = computed(() => !this.isProvidersLoading() && !!this.provider()?.allowSubmissions);
@@ -53,7 +54,7 @@ export class NewRegistrationComponent {
     createDraft: CreateDraft,
   });
   private readonly providerId = this.route.snapshot.params['providerId'];
-  private readonly projectId = this.route.snapshot.queryParams['projectId'];
+  private readonly projectId = this.isProjectReadOnly() ? undefined : this.route.snapshot.queryParams['projectId'];
   private readonly filter$ = new Subject<string>();
 
   readonly fromProject = signal(this.projectId !== undefined);
diff --git a/src/app/features/registries/components/registries-metadata-step/registries-contributors/registries-contributors.component.html b/src/app/features/registries/components/registries-metadata-step/registries-contributors/registries-contributors.component.html
index 725d9005b..5efca47aa 100644
--- a/src/app/features/registries/components/registries-metadata-step/registries-contributors/registries-contributors.component.html
+++ b/src/app/features/registries/components/registries-metadata-step/registries-contributors/registries-contributors.component.html
@@ -8,6 +8,7 @@ <h2 class="mb-2">{{ 'common.labels.contributors' | translate }}</h2>
     [isLoading]="isContributorsLoading()"
     [showLoadMore]="hasMoreContributors()"
     [isLoadingMore]="isLoadingMore()"
+    [resourceType]="8"
     (remove)="removeContributor($event)"
     (loadMore)="loadMoreContributors()"
   />
diff --git a/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.html b/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.html
index b28e15dc8..4d1002687 100644
--- a/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.html
+++ b/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.html
@@ -62,6 +62,20 @@ <h3>{{ 'registry.overview.metadata.registry' | translate }}</h3>
       <p data-test-registry-overview-metadata-registry-provider>{{ registryProvider()?.name }}</p>
     </div>
 
+    @if (showAssociatedProject()) {
+      <div class="flex flex-column gap-2">
+        <h3>{{ 'registry.overview.metadata.associatedProject' | translate }}</h3>
+
+        <a
+          class="font-bold"
+          [routerLink]="['/', resource.associatedProjectId]"
+          data-test-registry-overview-metadata-associated-project-link
+        >
+          {{ webUrl + '/' + resource.associatedProjectId }}
+        </a>
+      </div>
+    }
+
     <div class="flex gap-5 lg:gap-2 lg:justify-content-between">
       <div class="flex flex-column gap-2">
         <h3>{{ 'project.overview.metadata.dateCreated' | translate }}</h3>
@@ -124,7 +138,7 @@ <h3>{{ 'common.labels.language' | translate }}</h3>
       </p>
     </div>
 
-    @if (resource.associatedProjectId) {
+    @if (showAssociatedProject()) {
       <div class="flex flex-column gap-2">
         <h3>{{ 'registry.overview.metadata.associatedProject' | translate }}</h3>
 
diff --git a/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.spec.ts b/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.spec.ts
index 1f4035420..61eb29f5c 100644
--- a/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.spec.ts
+++ b/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.spec.ts
@@ -156,4 +156,30 @@ describe('RegistryOverviewMetadataComponent', () => {
 
     expect(mockRouter.navigate).toHaveBeenCalledWith(['/search'], { queryParams: { search: 'test-tag' } });
   });
+
+  it('should show associated project section if registry has associated project and is not a project registration', () => {
+    const { fixture } = setup({
+      registry: { ...MOCK_REGISTRY, associatedProjectId: 'project-123', hasProject: true },
+    });
+    const associatedProjectSection = fixture.nativeElement.querySelector(
+      '[data-test-registry-overview-metadata-associated-project-link]'
+    );
+    expect(associatedProjectSection).not.toBeNull();
+  });
+
+  it('should hide associated project section if registry has no associated project', () => {
+    const { fixture } = setup({ registry: { ...MOCK_REGISTRY, associatedProjectId: 'abc123', hasProject: false } });
+    const associatedProjectSection = fixture.nativeElement.querySelector(
+      '[data-test-registry-overview-metadata-associated-project-link]'
+    );
+    expect(associatedProjectSection).toBeNull();
+
+    const { fixture: fixture2 } = setup({
+      registry: { ...MOCK_REGISTRY, associatedProjectId: undefined, hasProject: true },
+    });
+    const associatedProjectSection2 = fixture2.nativeElement.querySelector(
+      '[data-test-registry-overview-metadata-associated-project-link]'
+    );
+    expect(associatedProjectSection2).toBeNull();
+  });
 });
diff --git a/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.ts b/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.ts
index 38a43b958..803b56e9b 100644
--- a/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.ts
+++ b/src/app/features/registry/components/registry-overview-metadata/registry-overview-metadata.component.ts
@@ -5,7 +5,7 @@ import { TranslatePipe } from '@ngx-translate/core';
 import { Button } from 'primeng/button';
 
 import { DatePipe } from '@angular/common';
-import { ChangeDetectionStrategy, Component, effect, inject } from '@angular/core';
+import { ChangeDetectionStrategy, Component, computed, effect, inject } from '@angular/core';
 import { Router, RouterLink } from '@angular/router';
 
 import { ENVIRONMENT } from '@core/provider/environment.provider';
@@ -84,6 +84,9 @@ export class RegistryOverviewMetadataComponent {
   readonly currentResourceType = CurrentResourceType.Registrations;
   readonly dateFormat = 'MMM d, y, h:mm a';
   readonly webUrl = this.environment.webUrl;
+  readonly showAssociatedProject = computed(
+    () => !!this.registry()?.associatedProjectId && this.registry()?.hasProject
+  );
 
   private readonly actions = createDispatchMap({
     getSubjects: FetchSelectedSubjects,
diff --git a/src/app/features/registry/models/registry-overview.model.ts b/src/app/features/registry/models/registry-overview.model.ts
index 957feafb5..d100a6384 100644
--- a/src/app/features/registry/models/registry-overview.model.ts
+++ b/src/app/features/registry/models/registry-overview.model.ts
@@ -5,7 +5,7 @@ import { RegistrationNodeModel } from '@shared/models/registration/registration-
 export interface RegistrationOverviewModel extends RegistrationNodeModel {
   registrationSchemaLink: string;
   licenseId: string;
-  associatedProjectId: string;
+  associatedProjectId?: string;
   providerId: string;
   status: RegistryStatus;
   forksCount: number;
diff --git a/src/app/shared/components/addons/addon-card/addon-card.component.html b/src/app/shared/components/addons/addon-card/addon-card.component.html
index 4d8f35d18..2840f1e75 100644
--- a/src/app/shared/components/addons/addon-card/addon-card.component.html
+++ b/src/app/shared/components/addons/addon-card/addon-card.component.html
@@ -21,7 +21,8 @@ <h3 class="text-center" data-test-addon-card-title>{{ actualAddon()?.displayName
       <p-button
         [label]="buttonLabel() | translate"
         severity="secondary"
-        [disabled]="!canConfigure()"
+        [disabled]="!canConfigure() || shouldDisableConnect()"
+        [pTooltip]="buttonTooltip() | translate"
         [class.opacity-0]="!canConfigure()"
         (onClick)="!isConfiguredAddon() ? onConnectAddon() : onConfigureAddon()"
       ></p-button>
diff --git a/src/app/shared/components/addons/addon-card/addon-card.component.spec.ts b/src/app/shared/components/addons/addon-card/addon-card.component.spec.ts
index e3405245e..cd939eabb 100644
--- a/src/app/shared/components/addons/addon-card/addon-card.component.spec.ts
+++ b/src/app/shared/components/addons/addon-card/addon-card.component.spec.ts
@@ -3,6 +3,7 @@ import { MockProvider } from 'ng-mocks';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user';
 import { CredentialsFormat } from '@osf/shared/enums/addons-credentials-format.enum';
 import { CustomConfirmationService } from '@osf/shared/services/custom-confirmation.service';
 import { AddonModel } from '@shared/models/addons/addon.model';
@@ -10,15 +11,25 @@ import { AddonModel } from '@shared/models/addons/addon.model';
 import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomConfirmationServiceMockBuilder } from '@testing/providers/custom-confirmation-provider.mock';
 import { RouterMockBuilder } from '@testing/providers/router-provider.mock';
-import { provideMockStore } from '@testing/providers/store-provider.mock';
+import {
+  BaseSetupOverrides,
+  mergeSignalOverrides,
+  provideMockStore,
+  SignalOverride,
+} from '@testing/providers/store-provider.mock';
 
 import { AddonCardComponent } from './addon-card.component';
 
+interface SetupOverrides extends BaseSetupOverrides {
+  selectorOverrides?: SignalOverride[];
+}
+
 describe('AddonCardComponent', () => {
   let component: AddonCardComponent;
   let fixture: ComponentFixture<AddonCardComponent>;
   let mockRouter: ReturnType<RouterMockBuilder['build']>;
   let customConfirmationServiceMock: ReturnType<CustomConfirmationServiceMockBuilder['build']>;
+  const defaultSignals: SignalOverride[] = [{ selector: UserSelectors.isProjectReadOnly, value: false }];
 
   const mockAddon: AddonModel = {
     id: 'test-addon-id',
@@ -31,7 +42,7 @@ describe('AddonCardComponent', () => {
     externalServiceName: 'test-service',
   };
 
-  beforeEach(() => {
+  const setup = function (overrides?: SetupOverrides) {
     mockRouter = RouterMockBuilder.create().withUrl('/settings/addons').build();
     customConfirmationServiceMock = CustomConfirmationServiceMockBuilder.create().build();
 
@@ -42,6 +53,9 @@ describe('AddonCardComponent', () => {
         provideMockStore(),
         MockProvider(Router, mockRouter),
         MockProvider(CustomConfirmationService, customConfirmationServiceMock),
+        provideMockStore({
+          signals: mergeSignalOverrides(defaultSignals, overrides?.selectorOverrides),
+        }),
       ],
     });
 
@@ -50,13 +64,41 @@ describe('AddonCardComponent', () => {
     fixture.componentRef.setInput('card', mockAddon);
 
     fixture.detectChanges();
-  });
+  };
 
   it('should create', () => {
+    setup();
     expect(component).toBeTruthy();
   });
 
+  it('should compute shouldDisableConnect when isProjectReadOnly false', () => {
+    expect(component.shouldDisableConnect()).toBe(false);
+
+    fixture.componentRef.setInput('isConnected', true);
+    fixture.detectChanges();
+    expect(component.shouldDisableConnect()).toBe(false);
+
+    fixture.componentRef.setInput('card', { ...mockAddon, type: 'external-citation-services' });
+    fixture.detectChanges();
+    expect(component.shouldDisableConnect()).toBe(false);
+  });
+
+  it('should compute shouldDisableConnect when isProjectReadOnly true', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    expect(component.shouldDisableConnect()).toBe(true);
+
+    fixture.componentRef.setInput('isConnected', true);
+    fixture.detectChanges();
+    expect(component.shouldDisableConnect()).toBe(false);
+
+    fixture.componentRef.setInput('card', { ...mockAddon, type: 'external-citation-services' });
+    fixture.componentRef.setInput('isConnected', false);
+    fixture.detectChanges();
+    expect(component.shouldDisableConnect()).toBe(false);
+  });
+
   it('should navigate to connect-addon route when addon exists', () => {
+    setup();
     component.onConnectAddon();
 
     expect(mockRouter.navigate).toHaveBeenCalledWith(['/settings/addons/connect-addon'], {
@@ -65,6 +107,7 @@ describe('AddonCardComponent', () => {
   });
 
   it('should navigate to configure-addon route when addon exists', () => {
+    setup();
     component.onConfigureAddon();
 
     expect(mockRouter.navigate).toHaveBeenCalledWith(['/settings/addons/configure-addon'], {
@@ -73,6 +116,7 @@ describe('AddonCardComponent', () => {
   });
 
   it('should call confirmDelete on customConfirmationService', () => {
+    setup();
     component.showDisableDialog();
 
     expect(customConfirmationServiceMock.confirmDelete).toHaveBeenCalledWith({
diff --git a/src/app/shared/components/addons/addon-card/addon-card.component.ts b/src/app/shared/components/addons/addon-card/addon-card.component.ts
index 16ca526b4..686bc5ffe 100644
--- a/src/app/shared/components/addons/addon-card/addon-card.component.ts
+++ b/src/app/shared/components/addons/addon-card/addon-card.component.ts
@@ -1,13 +1,15 @@
-import { createDispatchMap } from '@ngxs/store';
+import { createDispatchMap, select } from '@ngxs/store';
 
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
+import { Tooltip } from 'primeng/tooltip';
 
 import { Component, computed, inject, input } from '@angular/core';
 import { Router } from '@angular/router';
 
-import { getAddonTypeString, isConfiguredAddon } from '@osf/shared/helpers/addon-type.helper';
+import { UserSelectors } from '@osf/core/store/user';
+import { getAddonTypeString, isConfiguredAddon, isStorageAddon } from '@osf/shared/helpers/addon-type.helper';
 import { CustomConfirmationService } from '@osf/shared/services/custom-confirmation.service';
 import { LoaderService } from '@osf/shared/services/loader.service';
 import { AddonModel } from '@shared/models/addons/addon.model';
@@ -18,7 +20,7 @@ import { DeleteAuthorizedAddon } from '@shared/stores/addons';
 
 @Component({
   selector: 'osf-addon-card',
-  imports: [Button, TranslatePipe],
+  imports: [Button, Tooltip, TranslatePipe],
   templateUrl: './addon-card.component.html',
   styleUrl: './addon-card.component.scss',
 })
@@ -32,6 +34,8 @@ export class AddonCardComponent {
   readonly isConnected = input<boolean>(false);
   readonly hasAdminAccess = input<boolean>(false);
 
+  readonly isProjectReadOnly = select(UserSelectors.isProjectReadOnly);
+
   readonly actualAddon = computed(() => {
     const actualCard = this.card();
     if (!actualCard) return null;
@@ -74,6 +78,20 @@ export class AddonCardComponent {
     return hasAdmin || isOwner;
   });
 
+  readonly shouldDisableConnect = computed(() => {
+    if (this.isConfiguredAddon() || this.isConnected()) {
+      return false;
+    }
+    if (this.isProjectReadOnly() && !this.isConnected() && isStorageAddon(this.actualAddon())) {
+      return true;
+    }
+    return false;
+  });
+
+  readonly buttonTooltip = computed(() => {
+    return this.shouldDisableConnect() ? 'common.errorMessages.actionUnavailable' : '';
+  });
+
   readonly buttonLabel = computed(() => {
     const isConfigured = this.isConfiguredAddon();
     const isConnected = this.isConnected();
diff --git a/src/app/shared/components/contributors/contributors-table/contributors-table.component.html b/src/app/shared/components/contributors/contributors-table/contributors-table.component.html
index 36b516a90..14e33b64b 100644
--- a/src/app/shared/components/contributors/contributors-table/contributors-table.component.html
+++ b/src/app/shared/components/contributors/contributors-table/contributors-table.component.html
@@ -1,7 +1,7 @@
 <p-table
   [value]="isLoading() ? skeletonData : contributors()"
   [lazy]="true"
-  [reorderableColumns]="!deactivatedContributors() && hasAdminAccess()"
+  [reorderableColumns]="!deactivatedContributors() && canEditContributors()"
   [scrollable]="tableParams().scrollable"
   (onRowReorder)="onRowReorder()"
   class="view-only-table"
@@ -59,7 +59,7 @@
     @if (contributor.id) {
       <tr [pReorderableRow]="index" class="select-none">
         <td>
-          @if (!deactivatedContributors() && hasAdminAccess()) {
+          @if (!deactivatedContributors() && canEditContributors()) {
             <div pReorderableRowHandle>
               <osf-icon [iconClass]="'fas fa-bars'"></osf-icon>
             </div>
@@ -75,6 +75,8 @@
           @if (hasAdminAccess() && !contributor.deactivated) {
             <div class="w-9rem">
               <osf-select
+                [disabled]="!canEditContributors()"
+                [pTooltip]="controlDisabledTooltip() | translate"
                 [options]="permissionsOptions"
                 [placeholder]="'project.contributors.permissionFilter'"
                 [appendTo]="'body'"
@@ -99,13 +101,15 @@
         </td>
         <td>
           <div class="flex align-items-center justify-content-center">
-            <p-checkbox
-              variant="filled"
-              binary="true"
-              [(ngModel)]="contributor.isBibliographic"
-              [ariaLabel]="'project.contributors.table.headers.contributor' | translate"
-              [disabled]="!hasAdminAccess() || contributor.deactivated || contributor.isCurator"
-            ></p-checkbox>
+            <span [pTooltip]="controlDisabledTooltip() | translate">
+              <p-checkbox
+                variant="filled"
+                binary="true"
+                [(ngModel)]="contributor.isBibliographic"
+                [ariaLabel]="'project.contributors.table.headers.contributor' | translate"
+                [disabled]="!canEditContributors() || contributor.deactivated || contributor.isCurator"
+              ></p-checkbox>
+            </span>
           </div>
         </td>
         @if (showCurator()) {
@@ -160,6 +164,12 @@
               icon="fas fa-trash"
               severity="danger"
               text
+              [disabled]="!canEditContributors() && contributor.userId !== currentUserId()"
+              [pTooltip]="
+                (!canEditContributors() && contributor.userId !== currentUserId() ? controlDisabledTooltip() : '')
+                  | translate
+              "
+              tooltipPosition="left"
               [ariaLabel]="'common.buttons.delete' | translate"
               (onClick)="removeContributor(contributor)"
               data-test-remove-contributor-button
@@ -206,61 +216,27 @@ <h2>{{ 'project.contributors.permissionInfo.title' | translate }}</h2>
     <div class="inside-list">
       <p class="font-bold">{{ 'project.contributors.permissions.read' | translate }}</p>
       <ul class="font-normal ml-4">
-        <li>
-          {{
-            (isProject()
-              ? 'project.contributors.permissionInfo.viewProjectContent'
-              : 'project.contributors.permissionInfo.viewRegistrationContent'
-            ) | translate
-          }}
-        </li>
+        @for (permission of readOnlyPermissionInfo(); track $index) {
+          <li>{{ permission | translate }}</li>
+        }
       </ul>
     </div>
 
     <div class="inside-list">
       <p class="font-bold">{{ 'project.contributors.permissions.readAndWrite' | translate }}</p>
       <ul class="font-normal ml-4">
-        <li>{{ 'project.contributors.permissionInfo.read' | translate }}</li>
-        <li>
-          {{
-            (isProject()
-              ? 'project.contributors.permissionInfo.addComponents'
-              : 'project.contributors.permissionInfo.editMetadata'
-            ) | translate
-          }}
-        </li>
-        <li>
-          {{
-            (isProject()
-              ? 'project.contributors.permissionInfo.editContent'
-              : 'project.contributors.permissionInfo.addResourcesLinks'
-            ) | translate
-          }}
-        </li>
+        @for (permission of writePermissionInfo(); track $index) {
+          <li>{{ permission | translate }}</li>
+        }
       </ul>
     </div>
 
     <div class="inside-list">
       <p class="font-bold">{{ 'project.contributors.permissions.administrator' | translate }}</p>
       <ul class="font-normal ml-4">
-        <li>{{ 'project.contributors.permissionInfo.readWrite' | translate }}</li>
-        <li>{{ 'project.contributors.permissionInfo.manageContributors' | translate }}</li>
-        <li>
-          {{
-            (isProject()
-              ? 'project.contributors.permissionInfo.deleteRegister'
-              : 'project.contributors.permissionInfo.withdrawRegistration'
-            ) | translate
-          }}
-        </li>
-        <li>
-          {{
-            (isProject()
-              ? 'project.contributors.permissionInfo.publicPrivate'
-              : 'project.contributors.permissionInfo.endEmbargoEarly'
-            ) | translate
-          }}
-        </li>
+        @for (permission of adminPermissionInfo(); track $index) {
+          <li>{{ permission | translate }}</li>
+        }
       </ul>
     </div>
   </div>
diff --git a/src/app/shared/components/contributors/contributors-table/contributors-table.component.spec.ts b/src/app/shared/components/contributors/contributors-table/contributors-table.component.spec.ts
index b3a4ccac0..fe972e217 100644
--- a/src/app/shared/components/contributors/contributors-table/contributors-table.component.spec.ts
+++ b/src/app/shared/components/contributors/contributors-table/contributors-table.component.spec.ts
@@ -2,6 +2,7 @@ import { MockComponents, MockProvider } from 'ng-mocks';
 
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { ResourceType } from '@osf/shared/enums/resource-type.enum';
 import { ContributorModel } from '@shared/models/contributors/contributor.model';
 import { TableParameters } from '@shared/models/table-parameters.model';
@@ -10,6 +11,7 @@ import { CustomDialogService } from '@shared/services/custom-dialog.service';
 import { MOCK_CONTRIBUTOR, MOCK_CONTRIBUTOR_WITHOUT_HISTORY } from '@testing/mocks/contributors.mock';
 import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomDialogServiceMockBuilder } from '@testing/providers/custom-dialog-provider.mock';
+import { BaseSetupOverrides, mergeSignalOverrides, provideMockStore } from '@testing/providers/store-provider.mock';
 
 import { EducationHistoryDialogComponent } from '../../education-history-dialog/education-history-dialog.component';
 import { EmploymentHistoryDialogComponent } from '../../employment-history-dialog/employment-history-dialog.component';
@@ -36,37 +38,47 @@ describe('ContributorsTableComponent', () => {
   let fixture: ComponentFixture<ContributorsTableComponent>;
   let mockCustomDialogService: ReturnType<CustomDialogServiceMockBuilder['build']>;
 
-  beforeEach(() => {
+  function setup(overrides: BaseSetupOverrides = {}) {
     mockCustomDialogService = CustomDialogServiceMockBuilder.create().build();
+    const defaultSignals = [{ selector: UserSelectors.isProjectReadOnly, value: false }];
+    const signals = mergeSignalOverrides(defaultSignals, overrides.selectorOverrides);
 
     TestBed.configureTestingModule({
       imports: [ContributorsTableComponent, ...MockComponents(SelectComponent, IconComponent, InfoIconComponent)],
-      providers: [provideOSFCore(), MockProvider(CustomDialogService, mockCustomDialogService)],
+      providers: [
+        provideOSFCore(),
+        MockProvider(CustomDialogService, mockCustomDialogService),
+        provideMockStore({ signals }),
+      ],
     });
 
     fixture = TestBed.createComponent(ContributorsTableComponent);
     component = fixture.componentInstance;
     fixture.componentRef.setInput('tableParams', makeTableParams());
     fixture.detectChanges();
-  });
+  }
 
   it('should create', () => {
+    setup();
     expect(component).toBeTruthy();
   });
 
   it('should return true from isProject when resourceType is Project', () => {
+    setup();
     fixture.componentRef.setInput('resourceType', ResourceType.Project);
     fixture.detectChanges();
     expect(component.isProject()).toBe(true);
   });
 
   it('should return false from isProject when resourceType is Registration', () => {
+    setup();
     fixture.componentRef.setInput('resourceType', ResourceType.Registration);
     fixture.detectChanges();
     expect(component.isProject()).toBe(false);
   });
 
   it('should return true from deactivatedContributors when at least one contributor is deactivated', () => {
+    setup();
     fixture.componentRef.setInput('contributors', [
       { ...MOCK_CONTRIBUTOR, id: '1', deactivated: false },
       { ...MOCK_CONTRIBUTOR_WITHOUT_HISTORY, id: '2', deactivated: true },
@@ -76,6 +88,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should return false from deactivatedContributors when all contributors are active', () => {
+    setup();
     fixture.componentRef.setInput('contributors', [
       { ...MOCK_CONTRIBUTOR, id: '1', deactivated: false },
       { ...MOCK_CONTRIBUTOR_WITHOUT_HISTORY, id: '2', deactivated: false },
@@ -85,23 +98,131 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should return false from deactivatedContributors when contributor list is empty', () => {
+    setup();
     fixture.componentRef.setInput('contributors', []);
     fixture.detectChanges();
     expect(component.deactivatedContributors()).toBe(false);
   });
 
   it('should default showLoadMore to false', () => {
+    setup();
     expect(component.showLoadMore()).toBe(false);
   });
 
   it('should reflect showLoadMore as true when set by parent', () => {
+    setup();
     fixture.componentRef.setInput('showLoadMore', true);
     fixture.detectChanges();
     expect(component.showLoadMore()).toBe(true);
   });
 
-  it('should emit remove event with the given contributor when removeContributor is called', () => {
-    const contributor: ContributorModel = { ...MOCK_CONTRIBUTOR, id: 'remove-id' };
+  it('should compute readOnlyPermissionInfo correctly', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.detectChanges();
+    expect(component.readOnlyPermissionInfo()).toEqual([
+      'project.contributors.permissionInfo.readOnlyViewProjectContent',
+    ]);
+
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    fixture.componentRef.setInput('resourceType', ResourceType.Project);
+    fixture.detectChanges();
+    expect(component.readOnlyPermissionInfo()).toEqual(['project.contributors.permissionInfo.viewProjectContent']);
+
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.componentRef.setInput('resourceType', ResourceType.Registration);
+    fixture.detectChanges();
+    expect(component.readOnlyPermissionInfo()).toEqual(['project.contributors.permissionInfo.viewRegistrationContent']);
+  });
+
+  it('should compute writePermissionInfo correctly', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.detectChanges();
+    expect(component.writePermissionInfo()).toEqual(['project.contributors.permissionInfo.readOnlyViewProjectContent']);
+
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    fixture.componentRef.setInput('resourceType', ResourceType.Project);
+    fixture.detectChanges();
+    expect(component.writePermissionInfo()).toEqual([
+      'project.contributors.permissionInfo.read',
+      'project.contributors.permissionInfo.addComponents',
+      'project.contributors.permissionInfo.editContent',
+    ]);
+
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.componentRef.setInput('resourceType', ResourceType.Registration);
+    fixture.detectChanges();
+    expect(component.writePermissionInfo()).toEqual([
+      'project.contributors.permissionInfo.read',
+      'project.contributors.permissionInfo.editMetadata',
+      'project.contributors.permissionInfo.addResourcesLinks',
+    ]);
+  });
+
+  it('should compute adminPermissionInfo correctly', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.detectChanges();
+    expect(component.adminPermissionInfo()).toEqual([
+      'project.contributors.permissionInfo.manageViewOnlyLinks',
+      'project.contributors.permissionInfo.deleteProject',
+    ]);
+
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    fixture.componentRef.setInput('resourceType', ResourceType.Project);
+    fixture.detectChanges();
+    expect(component.adminPermissionInfo()).toEqual([
+      'project.contributors.permissionInfo.readWrite',
+      'project.contributors.permissionInfo.manageContributors',
+      'project.contributors.permissionInfo.deleteRegister',
+      'project.contributors.permissionInfo.publicPrivate',
+    ]);
+
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.componentRef.setInput('resourceType', ResourceType.Registration);
+    fixture.detectChanges();
+    expect(component.adminPermissionInfo()).toEqual([
+      'project.contributors.permissionInfo.readWrite',
+      'project.contributors.permissionInfo.manageContributors',
+      'project.contributors.permissionInfo.withdrawRegistration',
+      'project.contributors.permissionInfo.endEmbargoEarly',
+    ]);
+  });
+
+  it('should compute properties when hasAdminAccess is true and isProjectReadonly is false', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    fixture.componentRef.setInput('hasAdminAccess', true);
+    fixture.detectChanges();
+    expect(component.canEditContributors()).toBe(true);
+    expect(component.controlDisabledTooltip()).toBe('');
+  });
+
+  it('should compute properties when hasAdminAccess is true and isProjectReadonly is true', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.componentRef.setInput('hasAdminAccess', true);
+    fixture.detectChanges();
+    expect(component.canEditContributors()).toBe(false);
+    expect(component.controlDisabledTooltip()).toBe('common.errorMessages.actionUnavailable');
+  });
+
+  it('should compute properties when hasAdminAccess is false and isProjectReadonly is false', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: false }] });
+    fixture.componentRef.setInput('hasAdminAccess', false);
+    fixture.detectChanges();
+    expect(component.canEditContributors()).toBe(false);
+    expect(component.controlDisabledTooltip()).toBe('');
+  });
+
+  it('should compute properties when hasAdminAccess is true, isProjectReadonly is true, and isProject is false', () => {
+    setup({ selectorOverrides: [{ selector: UserSelectors.isProjectReadOnly, value: true }] });
+    fixture.componentRef.setInput('hasAdminAccess', true);
+    fixture.componentRef.setInput('resourceType', ResourceType.DraftRegistration);
+    fixture.detectChanges();
+    expect(component.canEditContributors()).toBe(true);
+    expect(component.controlDisabledTooltip()).toBe('');
+  });
+
+  it('should emit remove event when removeContributor is called', () => {
+    setup();
+    const contributor = { ...MOCK_CONTRIBUTOR, id: 'remove-id' };
     vi.spyOn(component.remove, 'emit');
 
     component.removeContributor(contributor);
@@ -110,6 +231,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should emit loadMore event when loadMoreItems is called', () => {
+    setup();
     vi.spyOn(component.loadMore, 'emit');
 
     component.loadMoreItems();
@@ -118,6 +240,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should open EducationHistoryDialogComponent with contributor education data', () => {
+    setup();
     const contributor: ContributorModel = {
       ...MOCK_CONTRIBUTOR,
       id: 'education-id',
@@ -145,6 +268,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should open EducationHistoryDialogComponent with an empty education array', () => {
+    setup();
     const contributor: ContributorModel = { ...MOCK_CONTRIBUTOR, id: 'no-education-id', education: [] };
 
     component.openEducationHistory(contributor);
@@ -157,6 +281,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should open EmploymentHistoryDialogComponent with contributor employment data', () => {
+    setup();
     const contributor: ContributorModel = {
       ...MOCK_CONTRIBUTOR,
       id: 'employment-id',
@@ -184,6 +309,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should open EmploymentHistoryDialogComponent with an empty employment array', () => {
+    setup();
     const contributor: ContributorModel = { ...MOCK_CONTRIBUTOR, id: 'no-employment-id', employment: [] };
 
     component.openEmploymentHistory(contributor);
@@ -196,6 +322,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should reindex contributors starting from tableParams.firstRowIndex on row reorder', () => {
+    setup();
     fixture.componentRef.setInput('tableParams', makeTableParams({ firstRowIndex: 10 }));
     fixture.componentRef.setInput('contributors', [
       { ...MOCK_CONTRIBUTOR, id: '1', index: 0 },
@@ -210,6 +337,7 @@ describe('ContributorsTableComponent', () => {
   });
 
   it('should reindex contributors from 0 when firstRowIndex is 0 on row reorder', () => {
+    setup();
     fixture.componentRef.setInput('tableParams', makeTableParams({ firstRowIndex: 0 }));
     fixture.componentRef.setInput('contributors', [
       { ...MOCK_CONTRIBUTOR, id: '1', index: 5 },
diff --git a/src/app/shared/components/contributors/contributors-table/contributors-table.component.ts b/src/app/shared/components/contributors/contributors-table/contributors-table.component.ts
index 800c35066..aee7652bc 100644
--- a/src/app/shared/components/contributors/contributors-table/contributors-table.component.ts
+++ b/src/app/shared/components/contributors/contributors-table/contributors-table.component.ts
@@ -1,3 +1,5 @@
+import { select } from '@ngxs/store';
+
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { Button } from 'primeng/button';
@@ -9,6 +11,7 @@ import { Tooltip } from 'primeng/tooltip';
 import { ChangeDetectionStrategy, Component, computed, inject, input, model, output } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { SelectComponent } from '@osf/shared/components/select/select.component';
 import { PERMISSION_OPTIONS } from '@osf/shared/constants/contributors.constants';
 import { ContributorPermission } from '@osf/shared/enums/contributors/contributor-permission.enum';
@@ -58,6 +61,8 @@ export class ContributorsTableComponent {
   remove = output<ContributorModel>();
   loadMore = output<void>();
 
+  isProjectReadonly = select(UserSelectors.isProjectReadOnly);
+
   customDialogService = inject(CustomDialogService);
 
   readonly permissionsOptions = PERMISSION_OPTIONS;
@@ -69,6 +74,65 @@ export class ContributorsTableComponent {
 
   deactivatedContributors = computed(() => this.contributors().some((contributor) => contributor.deactivated));
 
+  canEditContributors = computed(() => this.hasAdminAccess() && !(this.isProjectReadonly() && this.isProject()));
+
+  controlDisabledTooltip = computed(() =>
+    this.isProjectReadonly() && this.isProject() ? 'common.errorMessages.actionUnavailable' : ''
+  );
+
+  readOnlyPermissionInfo = computed(() => {
+    const translationPrefix = 'project.contributors.permissionInfo.';
+    if (!this.isProject()) {
+      return [translationPrefix + 'viewRegistrationContent'];
+    }
+    return this.isProjectReadonly()
+      ? [translationPrefix + 'readOnlyViewProjectContent']
+      : [translationPrefix + 'viewProjectContent'];
+  });
+
+  writePermissionInfo = computed(() => {
+    const translationPrefix = 'project.contributors.permissionInfo.';
+    const projectPermissions = [
+      translationPrefix + 'read',
+      translationPrefix + 'addComponents',
+      translationPrefix + 'editContent',
+    ];
+    const registrationPermissions = [
+      translationPrefix + 'read',
+      translationPrefix + 'editMetadata',
+      translationPrefix + 'addResourcesLinks',
+    ];
+
+    if (!this.isProject()) {
+      return registrationPermissions;
+    }
+
+    return this.isProjectReadonly() ? [translationPrefix + 'readOnlyViewProjectContent'] : projectPermissions;
+  });
+
+  adminPermissionInfo = computed(() => {
+    const translationPrefix = 'project.contributors.permissionInfo.';
+    const projectPermissions = [
+      translationPrefix + 'readWrite',
+      translationPrefix + 'manageContributors',
+      translationPrefix + 'deleteRegister',
+      translationPrefix + 'publicPrivate',
+    ];
+    const registrationPermissions = [
+      translationPrefix + 'readWrite',
+      translationPrefix + 'manageContributors',
+      translationPrefix + 'withdrawRegistration',
+      translationPrefix + 'endEmbargoEarly',
+    ];
+
+    if (!this.isProject()) {
+      return registrationPermissions;
+    }
+    return this.isProjectReadonly()
+      ? [translationPrefix + 'manageViewOnlyLinks', translationPrefix + 'deleteProject']
+      : projectPermissions;
+  });
+
   removeContributor(contributor: ContributorModel) {
     this.remove.emit(contributor);
   }
diff --git a/src/app/shared/components/project-selector/project-selector.component.html b/src/app/shared/components/project-selector/project-selector.component.html
index 5d9ffdcfc..b10a31e21 100644
--- a/src/app/shared/components/project-selector/project-selector.component.html
+++ b/src/app/shared/components/project-selector/project-selector.component.html
@@ -3,6 +3,7 @@
   [loading]="isProjectsLoading()"
   [options]="projectsOptions()"
   [filter]="true"
+  [disabled]="disabled()"
   optionLabel="label"
   optionValue="value"
   appendTo="body"
diff --git a/src/app/shared/components/project-selector/project-selector.component.ts b/src/app/shared/components/project-selector/project-selector.component.ts
index 2b7597ec8..ae9e4b0fe 100644
--- a/src/app/shared/components/project-selector/project-selector.component.ts
+++ b/src/app/shared/components/project-selector/project-selector.component.ts
@@ -25,7 +25,6 @@ import { UserSelectors } from '@core/store/user';
 import { ProjectModel } from '@osf/shared/models/projects/projects.model';
 import { CustomOption } from '@shared/models/select-option.model';
 import { GetProjects, ProjectsSelectors } from '@shared/stores/projects';
-
 @Component({
   selector: 'osf-project-selector',
   imports: [Select, TranslatePipe, FormsModule],
@@ -44,6 +43,7 @@ export class ProjectSelectorComponent {
   placeholder = input<string>('common.buttons.select');
   showClear = input<boolean>(true);
   excludeProjectIds = input<string[]>([]);
+  disabled = input<boolean>(false);
   publicOnly = input<boolean>(false);
   selectedProject = model<ProjectModel | null>(null);
 
diff --git a/src/app/shared/components/sub-header/sub-header.component.html b/src/app/shared/components/sub-header/sub-header.component.html
index 13eee31c5..c198c9fb0 100644
--- a/src/app/shared/components/sub-header/sub-header.component.html
+++ b/src/app/shared/components/sub-header/sub-header.component.html
@@ -32,6 +32,7 @@ <h1 data-test-page-heading class="flex align-items-center word-break-word">
           [loading]="isSubmitting()"
           [disabled]="isButtonDisabled()"
           data-test-sub-header-button
+          [pTooltip]="buttonTooltip()"
         ></p-button>
       </div>
     }
diff --git a/src/app/shared/components/sub-header/sub-header.component.spec.ts b/src/app/shared/components/sub-header/sub-header.component.spec.ts
index 74c875fea..a479eb79e 100644
--- a/src/app/shared/components/sub-header/sub-header.component.spec.ts
+++ b/src/app/shared/components/sub-header/sub-header.component.spec.ts
@@ -128,6 +128,11 @@ describe('SubHeaderComponent', () => {
     expect(component.isButtonDisabled()).toBe(true);
   });
 
+  it('should set buttonTooltip input correctly', () => {
+    fixture.componentRef.setInput('buttonTooltip', 'Test button tooltip');
+    expect(component.buttonTooltip()).toBe('Test button tooltip');
+  });
+
   it('should emit buttonClick event', () => {
     const emitSpy = vi.spyOn(component.buttonClick, 'emit');
 
@@ -155,12 +160,14 @@ describe('SubHeaderComponent', () => {
     fixture.componentRef.setInput('description', 'Description with special chars: <>&"\'');
     fixture.componentRef.setInput('buttonLabel', 'Button with special chars: !@#$%');
     fixture.componentRef.setInput('tooltip', 'Tooltip with special chars: [{}]|\\');
+    fixture.componentRef.setInput('buttonTooltip', 'Button tooltip with special chars: @#$%()<>');
     fixture.componentRef.setInput('icon', 'pi-icon-with-special-chars');
 
     expect(component.title()).toBe('Title with special chars: @#$%^&*()');
     expect(component.description()).toBe('Description with special chars: <>&"\'');
     expect(component.buttonLabel()).toBe('Button with special chars: !@#$%');
     expect(component.tooltip()).toBe('Tooltip with special chars: [{}]|\\');
+    expect(component.buttonTooltip()).toBe('Button tooltip with special chars: @#$%()<>');
     expect(component.icon()).toBe('pi-icon-with-special-chars');
   });
 
@@ -169,12 +176,14 @@ describe('SubHeaderComponent', () => {
     fixture.componentRef.setInput('description', '');
     fixture.componentRef.setInput('buttonLabel', '');
     fixture.componentRef.setInput('tooltip', '');
+    fixture.componentRef.setInput('buttonTooltip', '');
     fixture.componentRef.setInput('icon', '');
 
     expect(component.title()).toBe('');
     expect(component.description()).toBe('');
     expect(component.buttonLabel()).toBe('');
     expect(component.tooltip()).toBe('');
+    expect(component.buttonTooltip()).toBe('');
     expect(component.icon()).toBe('');
   });
 
@@ -193,9 +202,11 @@ describe('SubHeaderComponent', () => {
     fixture.componentRef.setInput('showButton', true);
     fixture.componentRef.setInput('isButtonDisabled', true);
     fixture.componentRef.setInput('buttonLabel', 'Disabled Button');
+    fixture.componentRef.setInput('buttonTooltip', 'Disabled Button Tooltip');
 
     expect(component.showButton()).toBe(true);
     expect(component.isButtonDisabled()).toBe(true);
     expect(component.buttonLabel()).toBe('Disabled Button');
+    expect(component.buttonTooltip()).toBe('Disabled Button Tooltip');
   });
 });
diff --git a/src/app/shared/components/sub-header/sub-header.component.ts b/src/app/shared/components/sub-header/sub-header.component.ts
index e0150cc8f..559f76924 100644
--- a/src/app/shared/components/sub-header/sub-header.component.ts
+++ b/src/app/shared/components/sub-header/sub-header.component.ts
@@ -25,5 +25,6 @@ export class SubHeaderComponent {
   isLoading = input<boolean>(false);
   isSubmitting = input<boolean>(false);
   isButtonDisabled = input<boolean>(false);
+  buttonTooltip = input<string>('');
   buttonClick = output<void>();
 }
diff --git a/src/app/shared/components/wiki/edit-section/edit-section.component.html b/src/app/shared/components/wiki/edit-section/edit-section.component.html
index 5b31ad66a..dda2c48ae 100644
--- a/src/app/shared/components/wiki/edit-section/edit-section.component.html
+++ b/src/app/shared/components/wiki/edit-section/edit-section.component.html
@@ -7,7 +7,8 @@ <h2 class="mr-2">{{ 'common.labels.edit' | translate }}</h2>
           [label]="'common.buttons.save' | translate"
           severity="success"
           class="mr-2"
-          [disabled]="!currentContent()"
+          [disabled]="!currentContent() || disableSaveButton()"
+          [pTooltip]="disableSaveButton() ? ('common.errorMessages.actionUnavailable' | translate) : ''"
           (onClick)="save()"
           [loading]="isSaving()"
         ></p-button>
diff --git a/src/app/shared/components/wiki/edit-section/edit-section.component.spec.ts b/src/app/shared/components/wiki/edit-section/edit-section.component.spec.ts
index e4e005871..8b82765b6 100644
--- a/src/app/shared/components/wiki/edit-section/edit-section.component.spec.ts
+++ b/src/app/shared/components/wiki/edit-section/edit-section.component.spec.ts
@@ -244,4 +244,16 @@ describe('EditSectionComponent', () => {
     expect(component.content).toBe('');
     expect(component.initialContent).toBe('');
   });
+
+  it('should handle disableSaveButton input', () => {
+    fixture.componentRef.setInput('disableSaveButton', true);
+    fixture.detectChanges();
+
+    expect(component.disableSaveButton()).toBe(true);
+
+    fixture.componentRef.setInput('disableSaveButton', false);
+    fixture.detectChanges();
+
+    expect(component.disableSaveButton()).toBe(false);
+  });
 });
diff --git a/src/app/shared/components/wiki/edit-section/edit-section.component.ts b/src/app/shared/components/wiki/edit-section/edit-section.component.ts
index a62bf469f..2a255ef50 100644
--- a/src/app/shared/components/wiki/edit-section/edit-section.component.ts
+++ b/src/app/shared/components/wiki/edit-section/edit-section.component.ts
@@ -4,6 +4,7 @@ import { TranslatePipe } from '@ngx-translate/core';
 import { Button } from 'primeng/button';
 import { Checkbox } from 'primeng/checkbox';
 import { Panel } from 'primeng/panel';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, effect, inject, input, output } from '@angular/core';
 import { FormsModule } from '@angular/forms';
@@ -14,7 +15,7 @@ import { WikiSyntaxHelpDialogComponent } from '../wiki-syntax-help-dialog/wiki-s
 
 @Component({
   selector: 'osf-edit-section',
-  imports: [Checkbox, Panel, Button, TranslatePipe, FormsModule, LMarkdownEditorModule],
+  imports: [Checkbox, Panel, Button, Tooltip, TranslatePipe, FormsModule, LMarkdownEditorModule],
   templateUrl: './edit-section.component.html',
   styleUrl: './edit-section.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -25,6 +26,7 @@ export class EditSectionComponent {
   readonly currentContent = input.required<string>();
   readonly versionContent = input.required<string>();
   readonly isSaving = input<boolean>(false);
+  readonly disableSaveButton = input<boolean>(false);
   readonly contentChange = output<string>();
   readonly saveContent = output<string>();
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
diff --git a/src/app/shared/components/wiki/wiki-list/wiki-list.component.html b/src/app/shared/components/wiki/wiki-list/wiki-list.component.html
index b6d16d796..09a2cd66b 100644
--- a/src/app/shared/components/wiki/wiki-list/wiki-list.component.html
+++ b/src/app/shared/components/wiki/wiki-list/wiki-list.component.html
@@ -18,6 +18,8 @@
           @if (canEdit()) {
             <p-button
               [label]="'project.wiki.addNewWiki' | translate"
+              [disabled]="isWikiReadonly()"
+              [pTooltip]="disabledButtonTooltip() | translate"
               icon="fas fa-plus"
               severity="success"
               outlined
@@ -39,6 +41,8 @@
             <p-button
               icon="fas fa-trash"
               [label]="'common.buttons.delete' | translate"
+              [disabled]="isWikiReadonly()"
+              [pTooltip]="disabledButtonTooltip() | translate"
               severity="danger"
               outlined
               (onClick)="openDeleteWikiDialog()"
@@ -72,6 +76,8 @@ <h4 class="ml-2">{{ item.label | translate }}</h4>
                         <p-button
                           icon="fas fa-pencil"
                           [rounded]="true"
+                          [disabled]="isWikiReadonly()"
+                          [pTooltip]="disabledButtonTooltip() | translate"
                           variant="text"
                           osfStopPropagation
                           (onClick)="openRenameWikiDialog(item.id, item.label)"
@@ -104,6 +110,8 @@ <h4 class="ml-2">{{ item.label | translate }}</h4>
           <p-button
             class="btn-icon-only"
             icon="fas fa-plus"
+            [disabled]="isWikiReadonly()"
+            [pTooltip]="disabledButtonTooltip() | translate"
             raised
             outlined
             severity="success"
@@ -117,6 +125,8 @@ <h4 class="ml-2">{{ item.label | translate }}</h4>
                 raised
                 outlined
                 severity="danger"
+                [disabled]="isWikiReadonly()"
+                [pTooltip]="disabledButtonTooltip() | translate"
                 (onClick)="openDeleteWikiDialog()"
               />
             }
diff --git a/src/app/shared/components/wiki/wiki-list/wiki-list.component.spec.ts b/src/app/shared/components/wiki/wiki-list/wiki-list.component.spec.ts
index 0a9ac2f66..377d00ff3 100644
--- a/src/app/shared/components/wiki/wiki-list/wiki-list.component.spec.ts
+++ b/src/app/shared/components/wiki/wiki-list/wiki-list.component.spec.ts
@@ -5,6 +5,7 @@ import { MenuItem } from 'primeng/api';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { WikiModel } from '@osf/shared/models/wiki/wiki.model';
 import { WikiItemType } from '@osf/shared/models/wiki/wiki-type.model';
 import { CustomConfirmationService } from '@osf/shared/services/custom-confirmation.service';
@@ -14,6 +15,7 @@ import { ComponentWiki } from '@osf/shared/stores/wiki';
 import { provideOSFCore } from '@testing/osf.testing.provider';
 import { CustomConfirmationServiceMockBuilder } from '@testing/providers/custom-confirmation-provider.mock';
 import { RouterMockBuilder } from '@testing/providers/router-provider.mock';
+import { mergeSignalOverrides, provideMockStore, SignalOverride } from '@testing/providers/store-provider.mock';
 
 import { WikiListComponent } from './wiki-list.component';
 
@@ -42,10 +44,13 @@ describe('WikiListComponent', () => {
     },
   ];
 
-  beforeEach(() => {
+  const defaultSignals: SignalOverride[] = [{ selector: UserSelectors.isProjectReadOnly, value: false }];
+
+  function setup({ selectorOverrides = defaultSignals } = {}) {
     mockCustomConfirmationService = CustomConfirmationServiceMockBuilder.create().build();
     mockRouter = RouterMockBuilder.create().withUrl('/project/abc123/wiki').build();
 
+    const signals = mergeSignalOverrides(defaultSignals, selectorOverrides ?? []);
     TestBed.configureTestingModule({
       imports: [WikiListComponent],
       providers: [
@@ -53,14 +58,16 @@ describe('WikiListComponent', () => {
         MockProvider(CustomDialogService),
         MockProvider(CustomConfirmationService, mockCustomConfirmationService),
         MockProvider(Router, mockRouter),
+        provideMockStore({ signals }),
       ],
     });
 
     fixture = TestBed.createComponent(WikiListComponent);
     component = fixture.componentInstance;
-  });
+  }
 
   it('should create', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -71,6 +78,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should have all required inputs', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -84,6 +92,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should have default values for optional inputs', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -95,6 +104,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should have WikiItemType enum available', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -105,6 +115,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should have expanded signal initialized to true', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -115,6 +126,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should compute hasComponentsWikis correctly', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -125,6 +137,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should compute hasComponentsWikis as false when empty', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -135,6 +148,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should compute isHomeWikiSelected correctly when home wiki is selected', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -145,6 +159,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should compute isHomeWikiSelected as false when other wiki is selected', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki2');
@@ -155,6 +170,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should compute homeWikiId correctly', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -165,6 +181,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should return true for canEditName when user can edit and item is not home', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -177,6 +194,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should return false for canEditName when item is home wiki', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -189,6 +207,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should return false for canEditName when user cannot edit', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -201,6 +220,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should compute wikiMenu with main wikis', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -215,6 +235,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should compute wikiMenu with components wikis when present', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -229,6 +250,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should open delete confirmation dialog when openDeleteWikiDialog is called', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -241,6 +263,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should emit deleteWiki when delete is confirmed', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -258,6 +281,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should toggle expanded state when collapseNavigation is called', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -276,6 +300,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should handle empty wiki list', () => {
+    setup();
     fixture.componentRef.setInput('list', []);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', '');
@@ -289,6 +314,7 @@ describe('WikiListComponent', () => {
   });
 
   it('should handle empty components list', () => {
+    setup();
     fixture.componentRef.setInput('list', mockWikiList);
     fixture.componentRef.setInput('resourceId', 'resource-123');
     fixture.componentRef.setInput('currentWikiId', 'wiki1');
@@ -300,4 +326,21 @@ describe('WikiListComponent', () => {
     const menu = component.wikiMenu();
     expect(menu.length).toBe(1);
   });
+
+  it('should compute disabledButtonTooltip when wiki is read-only', () => {
+    const selectorOverrides: SignalOverride[] = [
+      {
+        selector: UserSelectors.isProjectReadOnly,
+        value: true,
+      },
+    ];
+    setup({ selectorOverrides });
+    fixture.componentRef.setInput('list', mockWikiList);
+    fixture.componentRef.setInput('resourceId', 'resource-123');
+    fixture.componentRef.setInput('currentWikiId', 'wiki1');
+    fixture.componentRef.setInput('componentsList', []);
+    fixture.detectChanges();
+
+    expect(component.disabledButtonTooltip()).toBe('common.errorMessages.actionUnavailable');
+  });
 });
diff --git a/src/app/shared/components/wiki/wiki-list/wiki-list.component.ts b/src/app/shared/components/wiki/wiki-list/wiki-list.component.ts
index d353a9893..050e0464d 100644
--- a/src/app/shared/components/wiki/wiki-list/wiki-list.component.ts
+++ b/src/app/shared/components/wiki/wiki-list/wiki-list.component.ts
@@ -1,3 +1,5 @@
+import { select } from '@ngxs/store';
+
 import { TranslatePipe } from '@ngx-translate/core';
 
 import { MenuItem } from 'primeng/api';
@@ -5,11 +7,13 @@ import { Button } from 'primeng/button';
 import { Panel } from 'primeng/panel';
 import { PanelMenu } from 'primeng/panelmenu';
 import { Skeleton } from 'primeng/skeleton';
+import { Tooltip } from 'primeng/tooltip';
 
 import { ChangeDetectionStrategy, Component, computed, DestroyRef, inject, input, output, signal } from '@angular/core';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 import { Router } from '@angular/router';
 
+import { UserSelectors } from '@osf/core/store/user/user.selectors';
 import { WikiModel } from '@osf/shared/models/wiki/wiki.model';
 import { WikiMenuItem } from '@osf/shared/models/wiki/wiki-menu.model';
 import { WikiItemType } from '@osf/shared/models/wiki/wiki-type.model';
@@ -22,7 +26,7 @@ import { RenameWikiDialogComponent } from '../rename-wiki-dialog/rename-wiki-dia
 
 @Component({
   selector: 'osf-wiki-list',
-  imports: [Button, Panel, PanelMenu, Skeleton, TranslatePipe],
+  imports: [Button, Panel, PanelMenu, Skeleton, Tooltip, TranslatePipe],
   templateUrl: './wiki-list.component.html',
   styleUrl: './wiki-list.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -45,12 +49,15 @@ export class WikiListComponent {
   private readonly router = inject(Router);
   private readonly destroyRef = inject(DestroyRef);
 
+  readonly isWikiReadonly = select(UserSelectors.isProjectReadOnly);
+
   wikiItemType = WikiItemType;
   expanded = signal(true);
 
   hasComponentsWikis = computed(() => this.componentsList().length > 0);
   homeWikiId = computed(() => this.list()?.find((wiki) => wiki.name.toLowerCase() === 'home')?.id);
   isHomeWikiSelected = computed(() => this.currentWikiId() === this.homeWikiId());
+  disabledButtonTooltip = computed(() => (this.isWikiReadonly() ? 'common.errorMessages.actionUnavailable' : ''));
 
   wikiMenu = computed(() => {
     const menu: WikiMenuItem[] = [
diff --git a/src/assets/i18n/en.json b/src/assets/i18n/en.json
index 4a49a62a0..31068f4c1 100644
--- a/src/assets/i18n/en.json
+++ b/src/assets/i18n/en.json
@@ -472,7 +472,8 @@
       "message": "Are you sure you want to discard your unsaved changes?"
     },
     "errorMessages": {
-      "serverError": "An unexpected error occurred. Please try again later."
+      "serverError": "An unexpected error occurred. Please try again later.",
+      "actionUnavailable": "This action is no longer available. Contact support if you have any questions."
     },
     "hint": {
       "tagSeparators": "Use enter or comma to create a tag.",
@@ -787,6 +788,7 @@
     "loggedIn": {
       "dashboard": {
         "createProject": "Create New Project",
+        "createProjectDisabledTooltip": "Project creation is no longer available. OSF is transitioning away from Projects as part of a platform update. Your existing projects remain accessible.",
         "getStartedHelp": "Visit Get Started Help Guides",
         "images": {
           "osfCollectionsImageAltText": "OSF Collections",
@@ -794,6 +796,8 @@
           "osfPreprintsImageAltTest": "OSF Preprints",
           "osfRegistriesImageAltTest": "OSF Registries"
         },
+        "noCreatedProject": "You haven’t created a project yet.",
+        "noCreatedProjectAndCreateProjectDisabled": "You don't have any projects.",
         "workflowLauncher": {
           "title": "Plan and document the lifecycle of your research",
           "description1": "OSF is designed to support your research process — planning your study, registering your methods, and sharing your findings as preprints. ",
@@ -821,7 +825,6 @@
             }
           }
         },
-        "noCreatedProject": "You haven’t created a project yet.",
         "projectTransition": "New projects can no longer be created after November 16th, and all existing projects will become read-only on February 19th. You can read more about the upcoming transition <a href='https://help.osf.io/article/727-osf-projects-transition' target='_blank' rel='noopener noreferrer'>here</a>.",
         "quickSearch": {
           "goTo": "Go to",
@@ -1094,6 +1097,7 @@
     },
     "header": {
       "createProject": "Create Project",
+      "createProjectDisabledTooltip": "Project creation is no longer available. OSF is transitioning away from Projects as part of a platform update. Your existing projects remain accessible.",
       "title": "My Projects"
     },
     "redirectDialog": {
@@ -1118,12 +1122,15 @@
       "deleteProject": "Delete Project",
       "descriptions": {
         "file_updated": {
+          "instantly": "You'll be notified immediately when files are updated.",
           "daily": "You'll receive a daily summary of file updates.",
           "none": "You won't receive file update notifications."
         }
       },
+      "disabledForWiki": "This feature is disabled for wikis of private projects.",
       "emailNotifications": "Email Notifications",
       "emailNotificationsText": "These notification settings only apply to you. They do NOT affect any other contributor on this project.",
+      "enabledForWiki": "This feature is enabled for wikis of private projects.",
       "ensureNoInformation": "Ensure the wiki pages, files, registration forms and add-ons do not contain identifying information.",
       "faq": "FAQ",
       "institutionalLogos": "institutional logos to be displayed on public projects",
@@ -1588,6 +1595,7 @@
           "connectExisting": "Connect An Existing OSF Project",
           "createNew": "Create A New OSF Project"
         },
+        "projectCreationDisabled": "Project creation is no longer available. OSF is transitioning away from Projects as part of a platform update. Your existing projects remain accessible.",
         "successMessages": {
           "projectConnected": "Project connected",
           "projectCreated": "Project created",
@@ -1704,13 +1712,16 @@
       "permissionInfo": {
         "addComponents": "Add and configure components",
         "addResourcesLinks": "Add resources links",
+        "deleteProject": "Delete project and components",
         "deleteRegister": "Delete and register project",
         "editContent": "Add and edit content",
         "editMetadata": "Edit metadata",
         "endEmbargoEarly": "End embargo early",
         "manageContributors": "Manage contributor",
+        "manageViewOnlyLinks": "Manage view-only links",
         "publicPrivate": "Public private settings",
         "read": "Read privileges",
+        "readOnlyViewProjectContent": "View project content",
         "readWrite": "Read and write privileges",
         "title": "Permission Information",
         "viewProjectContent": "View project content and comment",
@@ -1877,7 +1888,8 @@
         "forkProjectLabel": "Duplicate project",
         "manageContributors": "Manage Contributors",
         "settings": "Settings",
-        "viewDuplication": "View duplicates"
+        "viewDuplication": "View duplicates",
+        "duplicatingProjectsNotAllowed": "Duplicating projects is no longer available. OSF is transitioning away from Projects as part of a platform update."
       },
       "citations": {
         "copyCitation": "Copy citation",
@@ -1891,6 +1903,7 @@
       },
       "components": {
         "addComponentButton": "Add Component",
+        "addComponentDisabled": "Component creation is no longer available. OSF is transitioning away from Projects as part of a platform update.",
         "linkProjectsButton": "Link Projects",
         "noComponentsMessage": "Add components to organize your project.",
         "title": "Components"
@@ -2316,6 +2329,8 @@
     "commentLabel": "Comment (Optional)",
     "helpMessage": "If this should not have occurred, please contact",
     "message": "Ask for access, or switch to an account with permission.",
+    "messageReadOnly": "This project is in a read-only state, and new access can no longer be granted. If you are already a contributor, please switch to the account that has access to this project. <br><br> If you need assistance locating the correct account or have questions, please contact support at",
+    "readOnlyTitle": "You Don't Have Access",
     "requestAccess": "Request Access",
     "requestedSuccessMessage": "Your request for access has been sent.",
     "switchAccount": "Switch Account",
@@ -2864,6 +2879,7 @@
     },
     "files": {
       "description": "Uploaded files will automatically be archived in this registration. They will also be added to a related project that will be created for this registration.",
+      "descriptionNoProject": "Uploaded files will automatically be archived in this registration.",
       "limitText": "You may attach up to 5 file(s) to this question. Files cannot total over 5GB in size."
     },
     "license": {