diff --git a/Layout/default/ConstructionConsent/Form.php b/Layout/default/ConstructionConsent/Form.php
index 9557c6c3d..2b8bfbd80 100644
--- a/Layout/default/ConstructionConsent/Form.php
+++ b/Layout/default/ConstructionConsent/Form.php
@@ -392,8 +392,8 @@
 
     }
 
-    $("#kg").change(updateGstnr);
-    $("#gst").change(updateGstnr);
+    $("#kg").on("input", updateGstnr);
+    $("#gst").on("input", updateGstnr);
 
     async function updateGstnr() {
         let kg = $("#kg").val();
@@ -404,18 +404,16 @@
         $("#gstnr").val(kg + gst);
 
         // update EZ
-        if($("#object_type").val() == "building") {
-            $("#ez").prop("readonly", true);
-            var response = await fetch('<?=self::getUrl("ConstructionConsent", "Api", ["do" => "getEz"])?>&kg=' + kg + '&gst=' + gst);
-            if (!response.ok) {
-                return false;
-            }
-            var resp_json = await response.json();
-            if (resp_json.status == "OK" && resp_json.result.ez) {
-                $("#ez").val(resp_json.result.ez);
-            }
-            $("#ez").prop("readonly", false);
+        $("#ez").prop("readonly", true);
+        var response = await fetch('<?=self::getUrl("ConstructionConsent", "Api", ["do" => "getEz"])?>&kg=' + kg + '&gst=' + gst);
+        if (!response.ok) {
+            return false;
         }
+        var resp_json = await response.json();
+        if (resp_json.status == "OK" && resp_json.result.ez) {
+            $("#ez").val(resp_json.result.ez);
+        }
+        $("#ez").prop("readonly", false);
     }
 
     $(window).bind("paste", (e) => {
diff --git a/Layout/default/ConstructionConsent/Index.php b/Layout/default/ConstructionConsent/Index.php
index 4f04678b9..d25ea17d5 100644
--- a/Layout/default/ConstructionConsent/Index.php
+++ b/Layout/default/ConstructionConsent/Index.php
@@ -135,6 +135,11 @@ $pagination_entity_name = "Zustimmungserklärungen";
                             <input type="text" class="form-control" name="filter[ez]" id=filter_ez value="<?=(array_key_exists('ez', $filter)) ? $filter['ez'] : ""?>" />
                         </div>
 
+                        <div class="col-2">
+                            <label class="form-label" for="filter_cwo">Eigentümer</label>
+                            <input type="text" class="form-control" name="filter[cwo]" id=filter_cwo value="<?=(array_key_exists('cwo', $filter)) ? $filter['cwo'] : ""?>" />
+                        </div>
+
 
                     </div>
 
diff --git a/application/ConstructionConsent/ConstructionConsent.php b/application/ConstructionConsent/ConstructionConsent.php
index d7b8ec4c1..5d72ae242 100644
--- a/application/ConstructionConsent/ConstructionConsent.php
+++ b/application/ConstructionConsent/ConstructionConsent.php
@@ -580,6 +580,13 @@ class ConstructionConsent extends mfBaseModel {
             }
         }
 
+        if (array_key_exists("cwo", $filter)) {
+            $where .= " AND EXISTS 
+            (SELECT 1 FROM ConstructionConsentOwner co WHERE co.constructionconsent_id = ConstructionConsent.id AND 
+            (co.firstname LIKE '%".$filter['cwo']."%' OR co.lastname LIKE '%".$filter['cwo']."%'))";
+        }
+
+
 
 
         if(array_key_exists("add-where", $filter)) {
diff --git a/public/index.php b/public/index.php
index 3b2a245c5..7b70b5e4a 100755
--- a/public/index.php
+++ b/public/index.php
@@ -5,6 +5,14 @@
 // phpinfo(); exit;
 define('mfUI',"web");
 
+// set max memory to 4GB
+ini_set('memory_limit', '4096M');
+
+//display errors
+ini_set('display_errors', 1);
+ini_set('display_startup_errors', 1);
+ini_set('error_reporting', E_ALL);
+
 if(file_exists("../config/config.php")) {
   require("../config/config.php");
 } else {