diff --git a/src/contracts/Repository/Exceptions/ContentTypeOwnedBySomeoneElseException.php b/src/contracts/Repository/Exceptions/ContentTypeOwnedBySomeoneElseException.php
new file mode 100644
index 0000000000..84e4abeae7
--- /dev/null
+++ b/src/contracts/Repository/Exceptions/ContentTypeOwnedBySomeoneElseException.php
@@ -0,0 +1,13 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Contracts\Core\Repository\Exceptions;
+
+interface ContentTypeOwnedBySomeoneElseException extends Exception
+{
+}
diff --git a/src/lib/Base/Exceptions/ContentTypeOwnedBySomeoneElseException.php b/src/lib/Base/Exceptions/ContentTypeOwnedBySomeoneElseException.php
new file mode 100644
index 0000000000..f2c3207ca7
--- /dev/null
+++ b/src/lib/Base/Exceptions/ContentTypeOwnedBySomeoneElseException.php
@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Core\Base\Exceptions;
+
+use Ibexa\Contracts\Core\Repository\Exceptions\ContentTypeOwnedBySomeoneElseException as APIContentTypeOwnedBySomeoneElseException;
+use Throwable;
+
+final class ContentTypeOwnedBySomeoneElseException extends NotFoundException implements APIContentTypeOwnedBySomeoneElseException
+{
+    public function __construct(int $contentTypeId, ?Throwable $previous = null)
+    {
+        parent::__construct('The content type is owned by someone else', $contentTypeId, $previous);
+    }
+}
diff --git a/src/lib/Repository/ContentTypeService.php b/src/lib/Repository/ContentTypeService.php
index 562612e68e..1909e7d441 100644
--- a/src/lib/Repository/ContentTypeService.php
+++ b/src/lib/Repository/ContentTypeService.php
@@ -37,6 +37,7 @@
 use Ibexa\Contracts\Core\Repository\Values\User\User;
 use Ibexa\Core\Base\Exceptions\BadStateException;
 use Ibexa\Core\Base\Exceptions\ContentTypeFieldDefinitionValidationException;
+use Ibexa\Core\Base\Exceptions\ContentTypeOwnedBySomeoneElseException;
 use Ibexa\Core\Base\Exceptions\ContentTypeValidationException;
 use Ibexa\Core\Base\Exceptions\InvalidArgumentException;
 use Ibexa\Core\Base\Exceptions\InvalidArgumentType;
@@ -767,8 +768,6 @@ public function loadContentTypeByRemoteId(string $remoteId, array $prioritizedLa
      * @param int $contentTypeId
      * @param bool $ignoreOwnership if true, method will return draft even if the owner is different than currently logged in user
      *
-     * @todo Use another exception when user of draft is someone else
-     *
      * @return \Ibexa\Contracts\Core\Repository\Values\ContentType\ContentTypeDraft
      */
     public function loadContentTypeDraft(int $contentTypeId, bool $ignoreOwnership = false): APIContentTypeDraft
@@ -779,7 +778,7 @@ public function loadContentTypeDraft(int $contentTypeId, bool $ignoreOwnership =
         );
 
         if (!$ignoreOwnership && $spiContentType->modifierId != $this->permissionResolver->getCurrentUserReference()->getUserId()) {
-            throw new NotFoundException('The content type is owned by someone else', $contentTypeId);
+            throw new ContentTypeOwnedBySomeoneElseException($contentTypeId);
         }
 
         return $this->contentTypeDomainMapper->buildContentTypeDraftDomainObject($spiContentType);