diff --git a/Layout/default/Building/Index.php b/Layout/default/Building/Index.php
index 37f1948c9..f771feca6 100644
--- a/Layout/default/Building/Index.php
+++ b/Layout/default/Building/Index.php
@@ -21,6 +21,82 @@
     <div class="row">
       <div class="col-lg-12">
         
+        <div class="card">
+          <div class="card-body mb-3">
+            <h4 class="header-title mb-3">Filter</h4>
+            
+            <form method="get" action="<?=self::getUrl("Building")?>">
+              <div class="row">
+                <div class="col-1">
+                  <label class="form-label" for="filter_network_id">Netzgebiet</label>
+                  <select name="filter[network_id]" id="filter_network_id" class="form-control">
+                    <option></option>
+                    <?php foreach($mynetworks as $fnet): ?>
+                    <option value="<?=$fnet->id?>" <?=($filter['network_id'] == $fnet->id) ? "selected='selected'" : ""?>><?=$fnet->name?></option>
+                    <?php endforeach; ?>
+                  </select>
+                </div>
+                
+                <div class="col-1">
+                  <label class="form-label" for="filter_networksection_id">Bauabschnitt</label>
+                  <select name="filter[networksection_id]" id="filter_networksection_id" class="form-control">
+                    <option></option>
+                    <?php foreach($mynetworks as $fnet): ?>
+                      <?php if(is_array($fnet->sections) && count($fnet->sections)): ?>
+                        <optgroup label="<?=$fnet->name?>">
+                        <?php foreach($fnet->sections as $section): ?>
+                          <option value="<?=$section->id?>" <?=($filter['networksection_id'] == $section->id) ? "selected='selected'" : ""?>><?=$section->name?></option>
+                        <?php endforeach; ?>
+                        </optgroup>
+                      <?php endif; ?>
+                    <?php endforeach; ?>
+                  </select>
+                </div>
+                
+                <div class="col-2">
+                  <label class="form-label" for="filter_status_id">Objektstatus</label>
+                  <select name="filter[status_id]" id="filter_status_id" class="form-control">
+                    <option></option>
+                    <?php foreach(BuildingstatusModel::getAll() as $status): ?>
+                    <option
+                      value="<?=$status->id?>" 
+                      <?php if(is_array($filter)): ?>
+                        <?=($filter['status_id'] == $status->id) ? "selected='selected'" : ""?>
+                      <?php else: ?>
+                        <?=(($me->is("pipeworker") && !$me->isAdmin()) && $status->id == 3) ? "selected='selected'" : ""?>
+                      <?php endif; ?>
+                    >
+                      <?=$status->code?> - <?=__($status->name."-b")?></option>
+                    <?php endforeach; ?>
+                  </select>
+                </div>
+                
+                <div class="col-1">
+                  <label class="form-label" for="filter_code">Objekt ID</label>
+                  <input type="text" class="form-control" name="filter[code]" id="filter_code" value="<?=$filter['code']?>" />
+                </div>
+                
+                <div class="col-2">
+                  <label class="form-label" for="filter_street">Straße</label>
+                  <input type="text" class="form-control" name="filter[street]" id="filter_street" value="<?=$filter['street']?>" />
+                </div>
+                
+                
+                
+                
+              </div>
+              <div class="row mt-2">
+                <div class="col">
+                  <button type="submit" class="btn btn-primary">Filter anwenden</button>
+                  <a class="btn btn-secondary" href="<?=self::getUrl("Building")?>">Filter zurücksetzen</a>
+                </div>
+              </div>
+            </form>
+            
+          </div>
+        </div>
+        
+        
         <div class="card">
           <div class="card-body mb-3">
             <div class="float-left">
diff --git a/application/Building/BuildingController.php b/application/Building/BuildingController.php
index 325567a4c..1f31fd4ca 100644
--- a/application/Building/BuildingController.php
+++ b/application/Building/BuildingController.php
@@ -17,9 +17,66 @@ class BuildingController extends mfBaseController {
   protected function indexAction() {
     $this->layout()->setTemplate("Building/Index");
     
+    $this->layout->set("filter", $this->request->filter);
+    
+    if($this->request->filter) {
+      $filter = $this->getPreparedFilter($this->request->filter);
+    }
+    
+    $my_networks = [];
+    
     if($this->me->is("Admin")) {
-      $this->layout()->set("buildings", BuildingModel::getAll());
+      if($filter['network_id']) {
+        $my_networks[] = new Network($filter['network_id']);
+      } else {
+        $my_networks = NetworkModel::getAll();
+      }
+      $this->layout()->set("mynetworks", NetworkModel::getAll());
+      
     } else {
+      $use_filter_network = false;
+      $my_networks = $this->me->my_networks;
+      
+      foreach($my_networks as $mn) {
+        if($mn->id == $filter['network_id']) {
+          $use_filter_network = true;
+          continue;
+        }
+      }
+      
+      if($use_filter_network) {
+        $my_networks = [];
+        $my_networks[] = new Network($filter['network_id']);
+      }
+      
+      $this->layout()->set("mynetworks", $this->me->my_networks);
+    }
+    unset($filter['network_id']);
+
+    // get Buildings in networks
+    $buildings = [];
+    foreach($my_networks as $network) {
+      $building_search = [
+          "network_id" => $network->id,
+          "workflow_finished" => 0
+      ];
+
+      if(is_array($filter) && count($filter)) {
+        foreach($filter as $name => $value) {
+          $building_search[$name] = $value;
+        }
+      }
+
+      foreach(BuildingModel::search($building_search) as $b) {
+        if(!array_key_exists($b->id, $buildings)) {
+          $buildings[$b->id] = $b;
+        }
+      }
+      
+      
+      
+      
+      /*
       $buildings = [];
       foreach($this->me->my_networks as $network) {
         foreach(BuildingModel::search(["network_id" => $network->id]) as $b) {
@@ -27,13 +84,32 @@ class BuildingController extends mfBaseController {
             $buildings[$b->id] = $b;
           }
         }
-      }
+      }*/
+      
+      
       //var_dump($buildings);exit;
       $this->layout()->set("buildings", $buildings);
     }
     
   }
   
+  private function getPreparedFilter($filter) {
+    $new_filter = [];
+
+    if(is_numeric($filter['networksection_id']) && $filter['networksection_id']) {
+      $section = new Networksection($filter['networksection_id']);
+      if($section->id) {
+        $filter['network_id'] = $section->network_id;
+      }
+    }
+    
+    foreach($filter as $name => $value) {
+      $new_filter[$name] = $value;
+    }
+    
+    return $new_filter;
+  }
+  
   protected function addAction() {
     $this->layout()->setTemplate("Building/Form");