diff --git a/src/bundle/Resources/config/services/siteaccess.yml b/src/bundle/Resources/config/services/siteaccess.yml
index 43aa47b6fa..286d6a0b66 100644
--- a/src/bundle/Resources/config/services/siteaccess.yml
+++ b/src/bundle/Resources/config/services/siteaccess.yml
@@ -7,3 +7,4 @@ services:
     EzSystems\EzPlatformAdminUi\Siteaccess\SiteaccessResolverInterface: '@EzSystems\EzPlatformAdminUi\Siteaccess\SiteaccessResolver'
     EzSystems\EzPlatformAdminUi\Siteaccess\SiteaccessResolver: ~
     EzSystems\EzPlatformAdminUi\Siteaccess\NonAdminSiteaccessResolver: ~
+    EzSystems\EzPlatformAdminUi\Siteaccess\RootLocationsProvider: ~
diff --git a/src/lib/Siteaccess/RootLocationsProvider.php b/src/lib/Siteaccess/RootLocationsProvider.php
new file mode 100644
index 0000000000..33ee2a3221
--- /dev/null
+++ b/src/lib/Siteaccess/RootLocationsProvider.php
@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * @copyright Copyright (C) eZ Systems AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace EzSystems\EzPlatformAdminUi\Siteaccess;
+
+use eZ\Publish\Core\MVC\ConfigResolverInterface;
+
+class RootLocationsProvider
+{
+    private const ROOT_LOCATIONS_PARAMETER_NAMES = [
+        'content.tree_root.location_id',
+        'location_ids.media',
+        'form_builder.forms_location_id',
+    ];
+
+    /** @var ConfigResolverInterface */
+    private $configResolver;
+
+    /**
+     * @param ConfigResolverInterface $configResolver
+     */
+    public function __construct(ConfigResolverInterface $configResolver)
+    {
+        $this->configResolver = $configResolver;
+    }
+
+    /**
+     * Gets all root locations (e.g. root location for Forms and Media) available in given siteaccess.
+     *
+     * @param string $siteaccess
+     *
+     * @return array
+     */
+    public function getRootLocations(string $siteaccess): array
+    {
+        $rootLocations = [];
+
+        foreach (self::ROOT_LOCATIONS_PARAMETER_NAMES as $rootLocationParameterName) {
+            if ($this->configResolver->hasParameter(
+                $rootLocationParameterName,
+                null,
+                $siteaccess
+            )) {
+                $rootLocations[] = $this->configResolver->getParameter(
+                    $rootLocationParameterName,
+                    null,
+                    $siteaccess
+                );
+            }
+        }
+
+        return $rootLocations;
+    }
+}
diff --git a/src/lib/Siteaccess/SiteaccessResolver.php b/src/lib/Siteaccess/SiteaccessResolver.php
index 966416649b..097b693ef4 100644
--- a/src/lib/Siteaccess/SiteaccessResolver.php
+++ b/src/lib/Siteaccess/SiteaccessResolver.php
@@ -14,22 +14,40 @@
 
 class SiteaccessResolver implements SiteaccessResolverInterface
 {
-    /** @var ConfigResolverInterface */
+    /** @var \eZ\Publish\Core\MVC\ConfigResolverInterface */
     private $configResolver;
 
-    /** @var ContentService */
+    /** @var \eZ\Publish\API\Repository\ContentService */
     private $contentService;
 
+    /** @var \EzSystems\EzPlatformAdminUi\Siteaccess\RootLocationsProvider */
+    private $rootLocationsProvider;
+
     /**
-     * @param ConfigResolverInterface $configResolver
-     * @param ContentService $contentService
+     * @param \eZ\Publish\Core\MVC\ConfigResolverInterface $configResolver
+     * @param \eZ\Publish\API\Repository\ContentService $contentService
+     * @param \EzSystems\EzPlatformAdminUi\Siteaccess\RootLocationsProvider $rootLocationsProvider
      */
-    public function __construct(ConfigResolverInterface $configResolver, ContentService $contentService)
-    {
+    public function __construct(
+        ConfigResolverInterface $configResolver,
+        ContentService $contentService,
+        RootLocationsProvider $rootLocationsProvider
+    ) {
         $this->configResolver = $configResolver;
         $this->contentService = $contentService;
+        $this->rootLocationsProvider = $rootLocationsProvider;
     }
 
+    /**
+     * @param \eZ\Publish\API\Repository\Values\Content\Location $location
+     * @param int|null $versionNo
+     * @param string|null $languageCode
+     *
+     * @return array
+     *
+     * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException
+     * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException
+     */
     public function getSiteaccessesForLocation(
         Location $location,
         int $versionNo = null,
@@ -42,12 +60,9 @@ public function getSiteaccessesForLocation(
 
         $eligibleSiteaccesses = [];
         foreach ($this->getSiteaccesses() as $siteaccess) {
-            $rootLocationId = $this->configResolver->getParameter(
-                'content.tree_root.location_id',
-                null,
-                $siteaccess
-            );
-            if (!in_array($rootLocationId, $location->path)) {
+            $rootLocations = $this->rootLocationsProvider->getRootLocations($siteaccess);
+
+            if (empty(array_intersect($rootLocations, $location->path))) {
                 continue;
             }