diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -63,6 +63,7 @@
   type ThreadRolePermissionsBlob,
   type UserSurfacedPermission,
   threadPermissionFilterPrefixes,
+  threadPermissionsDisabledByBlock,
 } from '../types/thread-permission-types.js';
 import {
   type ThreadType,
@@ -1007,32 +1008,19 @@
   return invalidated;
 }
 
-const permissionsDisabledByBlockArray = [
-  threadPermissions.VOICED,
-  threadPermissions.EDIT_ENTRIES,
-  threadPermissions.EDIT_THREAD_NAME,
-  threadPermissions.EDIT_THREAD_COLOR,
-  threadPermissions.EDIT_THREAD_DESCRIPTION,
-  threadPermissions.CREATE_SUBCHANNELS,
-  threadPermissions.CREATE_SIDEBARS,
-  threadPermissions.JOIN_THREAD,
-  threadPermissions.EDIT_PERMISSIONS,
-  threadPermissions.ADD_MEMBERS,
-  threadPermissions.REMOVE_MEMBERS,
-];
-
 const permissionsDisabledByBlock: Set<ThreadPermission> = new Set(
-  permissionsDisabledByBlockArray,
+  values(threadPermissionsDisabledByBlock),
 );
 
-const disabledPermissions: ThreadPermissionsInfo =
-  permissionsDisabledByBlockArray.reduce(
-    (permissions: ThreadPermissionsInfo, permission: string) => ({
-      ...permissions,
-      [permission]: { value: false, source: null },
-    }),
-    {},
-  );
+const disabledPermissions: ThreadPermissionsInfo = values(
+  threadPermissionsDisabledByBlock,
+).reduce(
+  (permissions: ThreadPermissionsInfo, permission: string) => ({
+    ...permissions,
+    [permission]: { value: false, source: null },
+  }),
+  {},
+);
 
 // Consider updating itemHeight in native/chat/chat-thread-list.react.js
 // if you change this
diff --git a/lib/types/thread-permission-types.js b/lib/types/thread-permission-types.js
--- a/lib/types/thread-permission-types.js
+++ b/lib/types/thread-permission-types.js
@@ -6,25 +6,29 @@
 import { values } from '../utils/objects.js';
 import { tBool, tShape, tID } from '../utils/validation-utils.js';
 
-// When a new permission is added, if it should be configurable for a role, it
-// should be either added to an existing set or a new set alongside a
-// new user-facing permission. If it is a permission that should be ensured
-// across all roles, it should be added to `universalCommunityPermissions`.
-export const threadPermissions = Object.freeze({
-  KNOW_OF: 'know_of',
-  VISIBLE: 'visible',
+export const threadPermissionsDisabledByBlock = Object.freeze({
   VOICED: 'voiced',
   EDIT_ENTRIES: 'edit_entries',
   EDIT_THREAD_NAME: 'edit_thread',
   EDIT_THREAD_DESCRIPTION: 'edit_thread_description',
   EDIT_THREAD_COLOR: 'edit_thread_color',
-  DELETE_THREAD: 'delete_thread',
   CREATE_SUBCHANNELS: 'create_subthreads',
   CREATE_SIDEBARS: 'create_sidebars',
   JOIN_THREAD: 'join_thread',
   EDIT_PERMISSIONS: 'edit_permissions',
   ADD_MEMBERS: 'add_members',
   REMOVE_MEMBERS: 'remove_members',
+});
+
+// When a new permission is added, if it should be configurable for a role, it
+// should be either added to an existing set or a new set alongside a
+// new user-facing permission. If it is a permission that should be ensured
+// across all roles, it should be added to `universalCommunityPermissions`.
+export const threadPermissions = Object.freeze({
+  ...threadPermissionsDisabledByBlock,
+  KNOW_OF: 'know_of',
+  VISIBLE: 'visible',
+  DELETE_THREAD: 'delete_thread',
   CHANGE_ROLE: 'change_role',
   LEAVE_THREAD: 'leave_thread',
   REACT_TO_MESSAGE: 'react_to_message',