diff --git a/src/apps/work/src/lib/utils/permissions.utils.spec.ts b/src/apps/work/src/lib/utils/permissions.utils.spec.ts
index 18be5fbff..b6c41a8fc 100644
--- a/src/apps/work/src/lib/utils/permissions.utils.spec.ts
+++ b/src/apps/work/src/lib/utils/permissions.utils.spec.ts
@@ -5,6 +5,7 @@ import type { Project } from '../models'
 import {
     canCreateEngagement,
     canViewAllEngagements,
+    checkCanEditProjectDetails,
     checkCanManageProject,
     checkIsUserInvitedToProject,
     checkProjectAccess,
@@ -41,6 +42,10 @@ describe('permissions.utils project management helpers', () => {
                 role: 'customer',
                 userId: 456,
             },
+            {
+                role: 'copilot',
+                userId: 789,
+            },
         ],
         name: 'Managed project',
         status: 'active',
@@ -77,6 +82,20 @@ describe('permissions.utils project management helpers', () => {
             .toBe(false)
     })
 
+    it('requires full access membership for project details edits', () => {
+        expect(checkCanEditProjectDetails(['Talent Manager'], '123', managedProject))
+            .toBe(true)
+        expect(checkCanEditProjectDetails(['Talent Manager'], '789', managedProject))
+            .toBe(false)
+        expect(checkCanEditProjectDetails(['Project Manager'], '456', managedProject))
+            .toBe(false)
+    })
+
+    it('allows admins to edit project details without membership', () => {
+        expect(checkCanEditProjectDetails(['administrator'], '999', managedProject))
+            .toBe(true)
+    })
+
     it('limits engagement creation to admins and talent managers', () => {
         expect(canCreateEngagement(['copilot']))
             .toBe(false)
diff --git a/src/apps/work/src/lib/utils/permissions.utils.ts b/src/apps/work/src/lib/utils/permissions.utils.ts
index bc4776a0c..3b678598d 100644
--- a/src/apps/work/src/lib/utils/permissions.utils.ts
+++ b/src/apps/work/src/lib/utils/permissions.utils.ts
@@ -326,6 +326,36 @@ export function checkCanManageProject(
         || normalizedRole === PROJECT_ROLES.MANAGER
 }
 
+/**
+ * Returns whether the caller can edit an existing project's core details.
+ *
+ * Admins always qualify. Non-admin callers must hold a manager-tier user role
+ * and the project's Full Access membership. Copilot membership is excluded so
+ * copilot users can keep other write access without changing project details.
+ *
+ * @param userRoles caller roles from the decoded auth token or app context.
+ * @param userId logged-in user identifier used for project membership checks.
+ * @param project project context for the edit check.
+ * @returns `true` when the caller can edit project details.
+ */
+export function checkCanEditProjectDetails(
+    userRoles: string[],
+    userId: number | string | undefined,
+    project: Project | undefined,
+): boolean {
+    if (hasAdminRole(userRoles)) {
+        return true
+    }
+
+    if (!project || !hasManagerRole(userRoles)) {
+        return false
+    }
+
+    const normalizedRole = normalizeValue(getProjectMemberByUserId(project, userId)?.role)
+
+    return normalizedRole === PROJECT_ROLES.MANAGER
+}
+
 export function checkAdminOrPmOrTaskManager(
     token: string,
     project?: Project,
diff --git a/src/apps/work/src/pages/projects/ProjectEditorPage/ProjectEditorPage.tsx b/src/apps/work/src/pages/projects/ProjectEditorPage/ProjectEditorPage.tsx
index 9c1623e06..7e399a1ef 100644
--- a/src/apps/work/src/pages/projects/ProjectEditorPage/ProjectEditorPage.tsx
+++ b/src/apps/work/src/pages/projects/ProjectEditorPage/ProjectEditorPage.tsx
@@ -26,7 +26,10 @@ import {
     ErrorMessage,
     LoadingSpinner,
 } from '../../../lib/components'
-import { checkCanManageProject } from '../../../lib/utils'
+import {
+    checkCanEditProjectDetails,
+    checkCanManageProject,
+} from '../../../lib/utils'
 
 import {
     ProjectEditorForm,
@@ -119,7 +122,7 @@ export const ProjectEditorPage: FC = () => {
 
     const canCreateProject = checkCanManageProject(userRoles, loginUserInfo?.userId)
     const canManageProject = !!projectResult.project
-        && checkCanManageProject(userRoles, loginUserInfo?.userId, projectResult.project)
+        && checkCanEditProjectDetails(userRoles, loginUserInfo?.userId, projectResult.project)
     const shouldRedirect = shouldRedirectToProjects(
         isEdit,
         canCreateProject,
diff --git a/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.spec.tsx b/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.spec.tsx
index 79f069146..47e18f6be 100644
--- a/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.spec.tsx
+++ b/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.spec.tsx
@@ -82,6 +82,8 @@ jest.mock('../../../lib/constants', () => ({
     PROJECTS_PAGE_SIZE: 10,
 }))
 jest.mock('../../../lib/utils', () => ({
+    checkCanEditProjectDetails:
+        jest.requireActual('../../../lib/utils/permissions.utils').checkCanEditProjectDetails,
     checkCanManageProject: jest.requireActual('../../../lib/utils/permissions.utils').checkCanManageProject,
 }))
 
diff --git a/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.tsx b/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.tsx
index ce59849a6..56af8d257 100644
--- a/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.tsx
+++ b/src/apps/work/src/pages/projects/ProjectsListPage/ProjectsListPage.tsx
@@ -35,7 +35,10 @@ import {
     ProjectFilters,
     WorkAppContextModel,
 } from '../../../lib/models'
-import { checkCanManageProject } from '../../../lib/utils'
+import {
+    checkCanEditProjectDetails,
+    checkCanManageProject,
+} from '../../../lib/utils'
 import styles from '../../../lib/components/ProjectsListPage/ProjectsListPage.module.scss'
 
 const DEFAULT_FILTERS: ProjectFilters = {
@@ -127,7 +130,7 @@ export const ProjectsListPage: FC = () => {
 
     const canCreateProject = checkCanManageProject(userRoles, loginUserInfo?.userId)
     const canEditProject = useCallback(
-        (project: Project): boolean => checkCanManageProject(userRoles, loginUserInfo?.userId, project),
+        (project: Project): boolean => checkCanEditProjectDetails(userRoles, loginUserInfo?.userId, project),
         [loginUserInfo?.userId, userRoles],
     )