diff --git a/Layout/default/ConstructionConsent/Index.php b/Layout/default/ConstructionConsent/Index.php
index e6bca5e2b..ffe720851 100644
--- a/Layout/default/ConstructionConsent/Index.php
+++ b/Layout/default/ConstructionConsent/Index.php
@@ -95,6 +95,11 @@ $pagination_entity_name = "Zustimmungserklärungen";
                             <input type="text" class="form-control" name="filter[address]" id="filter_address" value="<?=(array_key_exists('address', $filter)) ? $filter['address'] : ""?>" />
                         </div>
 
+                        <div class="col-2">
+                            <label class="form-label" for="filter_gst">GST</label>
+                            <input type="text" class="form-control" name="filter[gst]" id=filter_gst value="<?=(array_key_exists('gst', $filter)) ? $filter['gst'] : ""?>" />
+                        </div>
+
                     </div>
 
 
@@ -176,7 +181,7 @@ $pagination_entity_name = "Zustimmungserklärungen";
                         $height = 96 + 25 * (isset($config['sub']) ? count($config['sub']) : 0);
                         $text = $config['key'] ?
                             $stats[$config['key']].' / '.$config['denominator'].' ('.
-                            round(($stats[$config['key']]/$config['denominator'])*100).'%)' :
+                            round(($config['denominator'] != 0 ? ($stats[$config['key']] / $config['denominator']) : 0) * 100) . '%)' :
                             $config['text'];
                         ?>
                         <div class="card">
diff --git a/application/ConstructionConsent/ConstructionConsent.php b/application/ConstructionConsent/ConstructionConsent.php
index f1a53761f..233ddf7f9 100644
--- a/application/ConstructionConsent/ConstructionConsent.php
+++ b/application/ConstructionConsent/ConstructionConsent.php
@@ -483,6 +483,13 @@ class ConstructionConsent extends mfBaseModel {
             }
         }
 
+        if(array_key_exists("gst", $filter)) {
+            $gst = FronkDB::singleton()->escape($filter["gst"]);
+            if($gst) {
+                $where .= " AND gst LIKE '%$gst%'";
+            }
+        }
+
         if(array_key_exists("status", $filter)) {
             $status = FronkDB::singleton()->escape($filter["status"]);
             if($status) {