diff --git a/app/Entities/Repos/BaseRepo.php b/app/Entities/Repos/BaseRepo.php
index f93271430..8b2e70074 100644
--- a/app/Entities/Repos/BaseRepo.php
+++ b/app/Entities/Repos/BaseRepo.php
@@ -4,6 +4,7 @@ namespace BookStack\Entities\Repos;
 
 use BookStack\Actions\ActivityType;
 use BookStack\Actions\TagRepo;
+use BookStack\Auth\User;
 use BookStack\Entities\Models\Entity;
 use BookStack\Entities\Models\HasCoverImage;
 use BookStack\Exceptions\ImageUploadException;
@@ -89,30 +90,4 @@ class BaseRepo
             $entity->save();
         }
     }
-
-    /**
-     * Update the permissions of an entity.
-     */
-    public function updatePermissions(Entity $entity, bool $restricted, Collection $permissions = null)
-    {
-        $entity->restricted = $restricted;
-        $entity->permissions()->delete();
-
-        if (!is_null($permissions)) {
-            $entityPermissionData = $permissions->flatMap(function ($restrictions, $roleId) {
-                return collect($restrictions)->keys()->map(function ($action) use ($roleId) {
-                    return [
-                        'role_id' => $roleId,
-                        'action' => strtolower($action),
-                    ] ;
-                });
-            });
-
-            $entity->permissions()->createMany($entityPermissionData);
-        }
-
-        $entity->save();
-        $entity->rebuildPermissions();
-        Activity::addForEntity($entity, ActivityType::PERMISSIONS_UPDATE);
-    }
 }
diff --git a/app/Entities/Repos/BookRepo.php b/app/Entities/Repos/BookRepo.php
index d6dbe0b73..68d62887b 100644
--- a/app/Entities/Repos/BookRepo.php
+++ b/app/Entities/Repos/BookRepo.php
@@ -114,14 +114,6 @@ class BookRepo
         $this->baseRepo->updateCoverImage($book, $coverImage, $removeImage);
     }
 
-    /**
-     * Update the permissions of a book.
-     */
-    public function updatePermissions(Book $book, bool $restricted, Collection $permissions = null)
-    {
-        $this->baseRepo->updatePermissions($book, $restricted, $permissions);
-    }
-
     /**
      * Remove a book from the system.
      * @throws Exception
diff --git a/app/Entities/Repos/BookshelfRepo.php b/app/Entities/Repos/BookshelfRepo.php
index 075582cbf..b15241fb3 100644
--- a/app/Entities/Repos/BookshelfRepo.php
+++ b/app/Entities/Repos/BookshelfRepo.php
@@ -137,14 +137,6 @@ class BookshelfRepo
         $this->baseRepo->updateCoverImage($shelf, $coverImage, $removeImage);
     }
 
-    /**
-     * Update the permissions of a bookshelf.
-     */
-    public function updatePermissions(Bookshelf $shelf, bool $restricted, Collection $permissions = null)
-    {
-        $this->baseRepo->updatePermissions($shelf, $restricted, $permissions);
-    }
-
     /**
      * Copy down the permissions of the given shelf to all child books.
      */
diff --git a/app/Entities/Repos/ChapterRepo.php b/app/Entities/Repos/ChapterRepo.php
index 281cc2cab..d56874e0d 100644
--- a/app/Entities/Repos/ChapterRepo.php
+++ b/app/Entities/Repos/ChapterRepo.php
@@ -62,14 +62,6 @@ class ChapterRepo
         return $chapter;
     }
 
-    /**
-     * Update the permissions of a chapter.
-     */
-    public function updatePermissions(Chapter $chapter, bool $restricted, Collection $permissions = null)
-    {
-        $this->baseRepo->updatePermissions($chapter, $restricted, $permissions);
-    }
-
     /**
      * Remove a chapter from the system.
      * @throws Exception
diff --git a/app/Entities/Repos/PageRepo.php b/app/Entities/Repos/PageRepo.php
index f664d2126..8840c06db 100644
--- a/app/Entities/Repos/PageRepo.php
+++ b/app/Entities/Repos/PageRepo.php
@@ -383,14 +383,6 @@ class PageRepo
         return $parentClass::visible()->where('id', '=', $entityId)->first();
     }
 
-    /**
-     * Update the permissions of a page.
-     */
-    public function updatePermissions(Page $page, bool $restricted, Collection $permissions = null)
-    {
-        $this->baseRepo->updatePermissions($page, $restricted, $permissions);
-    }
-
     /**
      * Change the page's parent to the given entity.
      */
diff --git a/app/Entities/Tools/PermissionsUpdater.php b/app/Entities/Tools/PermissionsUpdater.php
new file mode 100644
index 000000000..bbf0cba96
--- /dev/null
+++ b/app/Entities/Tools/PermissionsUpdater.php
@@ -0,0 +1,68 @@
+<?php namespace BookStack\Entities\Tools;
+
+use BookStack\Actions\ActivityType;
+use BookStack\Auth\User;
+use BookStack\Entities\Models\Entity;
+use BookStack\Facades\Activity;
+use Illuminate\Http\Request;
+use Illuminate\Support\Collection;
+
+class PermissionsUpdater
+{
+
+    /**
+     * Update an entities permissions from a permission form submit request.
+     */
+    public function updateFromPermissionsForm(Entity $entity, Request $request)
+    {
+        $restricted = $request->get('restricted') === 'true';
+        $permissions = $request->get('restrictions', null);
+        $ownerId = $request->get('owned_by', null);
+
+        $entity->restricted = $restricted;
+        $entity->permissions()->delete();
+
+        if (!is_null($permissions)) {
+            $entityPermissionData = $this->formatPermissionsFromRequestToEntityPermissions($permissions);
+            $entity->permissions()->createMany($entityPermissionData);
+        }
+
+        if (!is_null($ownerId)) {
+            $this->updateOwnerFromId($entity, $ownerId);
+        }
+
+        $entity->save();
+        $entity->rebuildPermissions();
+
+        Activity::addForEntity($entity, ActivityType::PERMISSIONS_UPDATE);
+    }
+
+    /**
+     * Update the owner of the given entity.
+     * Checks the user exists in the system first.
+     * Does not save the model, just updates it.
+     */
+    protected function updateOwnerFromId(Entity $entity, int $newOwnerId)
+    {
+        $newOwner = User::query()->find($newOwnerId);
+        if (!is_null($newOwner)) {
+            $entity->owned_by = $newOwner->id;
+        }
+    }
+
+    /**
+     * Format permissions provided from a permission form to be
+     * EntityPermission data.
+     */
+    protected function formatPermissionsFromRequestToEntityPermissions(array $permissions): Collection
+    {
+        return collect($permissions)->flatMap(function ($restrictions, $roleId) {
+            return collect($restrictions)->keys()->map(function ($action) use ($roleId) {
+                return [
+                    'role_id' => $roleId,
+                    'action' => strtolower($action),
+                ] ;
+            });
+        });
+    }
+}
diff --git a/app/Http/Controllers/BookController.php b/app/Http/Controllers/BookController.php
index b63fe911f..3d695ba85 100644
--- a/app/Http/Controllers/BookController.php
+++ b/app/Http/Controllers/BookController.php
@@ -4,6 +4,7 @@ use Activity;
 use BookStack\Actions\ActivityType;
 use BookStack\Entities\Tools\BookContents;
 use BookStack\Entities\Models\Bookshelf;
+use BookStack\Entities\Tools\PermissionsUpdater;
 use BookStack\Entities\Tools\ShelfContext;
 use BookStack\Entities\Repos\BookRepo;
 use BookStack\Exceptions\ImageUploadException;
@@ -202,14 +203,12 @@ class BookController extends Controller
      * Set the restrictions for this book.
      * @throws Throwable
      */
-    public function permissions(Request $request, string $bookSlug)
+    public function permissions(Request $request, PermissionsUpdater $permissionsUpdater, string $bookSlug)
     {
         $book = $this->bookRepo->getBySlug($bookSlug);
         $this->checkOwnablePermission('restrictions-manage', $book);
 
-        $restricted = $request->get('restricted') === 'true';
-        $permissions = $request->filled('restrictions') ? collect($request->get('restrictions')) : null;
-        $this->bookRepo->updatePermissions($book, $restricted, $permissions);
+        $permissionsUpdater->updateFromPermissionsForm($book, $request);
 
         $this->showSuccessNotification(trans('entities.books_permissions_updated'));
         return redirect($book->getUrl());
diff --git a/app/Http/Controllers/BookshelfController.php b/app/Http/Controllers/BookshelfController.php
index 50dc97bab..32c22e185 100644
--- a/app/Http/Controllers/BookshelfController.php
+++ b/app/Http/Controllers/BookshelfController.php
@@ -2,6 +2,7 @@
 
 use Activity;
 use BookStack\Entities\Models\Book;
+use BookStack\Entities\Tools\PermissionsUpdater;
 use BookStack\Entities\Tools\ShelfContext;
 use BookStack\Entities\Repos\BookshelfRepo;
 use BookStack\Exceptions\ImageUploadException;
@@ -19,9 +20,6 @@ class BookshelfController extends Controller
     protected $entityContextManager;
     protected $imageRepo;
 
-    /**
-     * BookController constructor.
-     */
     public function __construct(BookshelfRepo $bookshelfRepo, ShelfContext $entityContextManager, ImageRepo $imageRepo)
     {
         $this->bookshelfRepo = $bookshelfRepo;
@@ -200,14 +198,12 @@ class BookshelfController extends Controller
     /**
      * Set the permissions for this bookshelf.
      */
-    public function permissions(Request $request, string $slug)
+    public function permissions(Request $request, PermissionsUpdater $permissionsUpdater, string $slug)
     {
         $shelf = $this->bookshelfRepo->getBySlug($slug);
         $this->checkOwnablePermission('restrictions-manage', $shelf);
 
-        $restricted = $request->get('restricted') === 'true';
-        $permissions = $request->filled('restrictions') ? collect($request->get('restrictions')) : null;
-        $this->bookshelfRepo->updatePermissions($shelf, $restricted, $permissions);
+        $permissionsUpdater->updateFromPermissionsForm($shelf, $request);
 
         $this->showSuccessNotification(trans('entities.shelves_permissions_updated'));
         return redirect($shelf->getUrl());
diff --git a/app/Http/Controllers/ChapterController.php b/app/Http/Controllers/ChapterController.php
index 0059f202b..1d69df2a2 100644
--- a/app/Http/Controllers/ChapterController.php
+++ b/app/Http/Controllers/ChapterController.php
@@ -3,6 +3,7 @@
 use BookStack\Entities\Models\Book;
 use BookStack\Entities\Tools\BookContents;
 use BookStack\Entities\Repos\ChapterRepo;
+use BookStack\Entities\Tools\PermissionsUpdater;
 use BookStack\Exceptions\MoveOperationException;
 use BookStack\Exceptions\NotFoundException;
 use Illuminate\Http\Request;
@@ -190,14 +191,12 @@ class ChapterController extends Controller
      * Set the restrictions for this chapter.
      * @throws NotFoundException
      */
-    public function permissions(Request $request, string $bookSlug, string $chapterSlug)
+    public function permissions(Request $request, PermissionsUpdater $permissionsUpdater, string $bookSlug, string $chapterSlug)
     {
         $chapter = $this->chapterRepo->getBySlug($bookSlug, $chapterSlug);
         $this->checkOwnablePermission('restrictions-manage', $chapter);
 
-        $restricted = $request->get('restricted') === 'true';
-        $permissions = $request->filled('restrictions') ? collect($request->get('restrictions')) : null;
-        $this->chapterRepo->updatePermissions($chapter, $restricted, $permissions);
+        $permissionsUpdater->updateFromPermissionsForm($chapter, $request);
 
         $this->showSuccessNotification(trans('entities.chapters_permissions_success'));
         return redirect($chapter->getUrl());
diff --git a/app/Http/Controllers/PageController.php b/app/Http/Controllers/PageController.php
index 67d28a78a..7d8e54382 100644
--- a/app/Http/Controllers/PageController.php
+++ b/app/Http/Controllers/PageController.php
@@ -5,6 +5,7 @@ use BookStack\Entities\Tools\PageContent;
 use BookStack\Entities\Tools\PageEditActivity;
 use BookStack\Entities\Models\Page;
 use BookStack\Entities\Repos\PageRepo;
+use BookStack\Entities\Tools\PermissionsUpdater;
 use BookStack\Exceptions\NotFoundException;
 use BookStack\Exceptions\NotifyException;
 use BookStack\Exceptions\PermissionsException;
@@ -453,14 +454,12 @@ class PageController extends Controller
      * @throws NotFoundException
      * @throws Throwable
      */
-    public function permissions(Request $request, string $bookSlug, string $pageSlug)
+    public function permissions(Request $request, PermissionsUpdater $permissionsUpdater, string $bookSlug, string $pageSlug)
     {
         $page = $this->pageRepo->getBySlug($bookSlug, $pageSlug);
         $this->checkOwnablePermission('restrictions-manage', $page);
 
-        $restricted = $request->get('restricted') === 'true';
-        $permissions = $request->filled('restrictions') ? collect($request->get('restrictions')) : null;
-        $this->pageRepo->updatePermissions($page, $restricted, $permissions);
+        $permissionsUpdater->updateFromPermissionsForm($page, $request);
 
         $this->showSuccessNotification(trans('entities.pages_permissions_success'));
         return redirect($page->getUrl());
diff --git a/app/Http/Controllers/UserSearchController.php b/app/Http/Controllers/UserSearchController.php
index f12f09fff..a0dfbd8d0 100644
--- a/app/Http/Controllers/UserSearchController.php
+++ b/app/Http/Controllers/UserSearchController.php
@@ -19,7 +19,7 @@ class UserSearchController extends Controller
             ->take(20);
 
         if (!empty($search)) {
-            $query->where(function(Builder $query) use ($search) {
+            $query->where(function (Builder $query) use ($search) {
                 $query->where('email', 'like', '%' . $search . '%')
                     ->orWhere('name', 'like', '%' . $search . '%');
             });