diff --git a/Layout/default/Building/Index.php b/Layout/default/Building/Index.php
index d38976c79..0c2d8feef 100644
--- a/Layout/default/Building/Index.php
+++ b/Layout/default/Building/Index.php
@@ -94,6 +94,10 @@
                 <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>
+                    <?php if ($me->isAdmin() && is_array($filter) && array_key_exists("network_id", $filter) && !empty($filter["network_id"])): ?>
+                    <a class="btn btn-outline-success" href="<?=self::getUrl("Building", "exportXLSX", ["network_id" => ($filter["network_id"])])?>">
+                        <i class="fas fa-file-excel"></i> Exportieren</a>
+                    <?php endif; ?>
                 </div>
                 <!--<div class="col">
                   <button class="btn btn-info" type="button" onclick="refreshMap()"><i class="far fa-map"></i> Auf Karte anzeigen</button>
diff --git a/application/Building/BuildingController.php b/application/Building/BuildingController.php
index 798ba8ea3..b6c402c62 100644
--- a/application/Building/BuildingController.php
+++ b/application/Building/BuildingController.php
@@ -479,5 +479,102 @@ class BuildingController extends mfBaseController {
     return ["count" => count($buildings), "buildings" => $results];
     
   }
-  
+
+    protected function exportXLSXAction()
+    {
+        if (!$this->me->isAdmin()) $this->redirect("Building");
+
+        $requestedNetworkId = $this->request->network_id;
+        if (!is_numeric($requestedNetworkId) || $requestedNetworkId <= 0) {
+            $this->layout()->setFlash("Netzgebiet nicht gefunden", "error");
+            $this->redirect("Building");
+        }
+
+        $targetNetwork = new Network($requestedNetworkId);
+        if (!$targetNetwork->id) {
+            $this->layout()->setFlash("Netzgebiet nicht gefunden", "error");
+            $this->redirect("Building");
+        }
+
+        $buildingRecords = BuildingModel::search(['network_id' => $targetNetwork->id]);
+        if (empty($buildingRecords)) {
+            $this->layout()->setFlash("Keine Objekte gefunden", "error");
+            $this->redirect("Building");
+        }
+
+        $exportFilename = sprintf("buildings_%s_%s.xlsx", $targetNetwork->name, date("Y-m-d"));
+
+        $columnHeaders = [
+            'id' => 'ID',
+            'network_name' => 'Netzgebiet',
+            'pop_name' => 'POP',
+            'type_name' => 'Objekttyp',
+            'code' => 'Objektcode',
+            'oan_id' => 'OA-ID',
+            'street' => 'Strasse',
+            'zip' => 'PLZ',
+            'city' => 'Ort',
+            'units' => 'Anzahl Einheiten',
+            'status_name' => 'Status',
+            'create' => 'Erstellt am',
+            'create_by' => 'Erstellt von',
+            'edit' => 'Bearbeitet am',
+            'edit_by' => 'Bearbeitet von'
+        ];
+        $headerKeys = array_keys($columnHeaders);
+
+        $formattedData = array_map(function($building) use ($targetNetwork, $headerKeys) {
+            $rowData = [
+                'id' => $building->id,
+                'network_name' => $targetNetwork->name,
+                'pop_name' => $building->pop_id ? ($building->pop->name ?? '-') : "-",
+                'type_name' => $building->type->name ?? '-',
+                'code' => $building->code,
+                'oan_id' => $building->oaid,
+                'street' => $building->street,
+                'zip' => $building->zip,
+                'city' => $building->city,
+                'units' => $building->units,
+                'status_name' => $building->status ? $this->__($building->status->name."-b") : '-',
+                'create' => $building->create ? date('d.m.Y H:i:s', $building->create) : '-',
+                'create_by' => $building->creator->name ?? '-',
+                'edit' => $building->edit ? date('d.m.Y H:i:s', $building->edit) : '-',
+                'edit_by' => $building->editor->name ?? '-',
+            ];
+            $orderedRow = [];
+            foreach ($headerKeys as $key) {
+                $orderedRow[] = $rowData[$key] ?? '';
+            }
+            return $orderedRow;
+        }, $buildingRecords);
+
+        $spreadsheet = new Spreadsheet();
+        $activeSheet = $spreadsheet->getActiveSheet();
+
+        $activeSheet->fromArray(array_values($columnHeaders), null, 'A1');
+        if (!empty($formattedData)) {
+            $activeSheet->fromArray($formattedData, null, 'A2');
+        }
+
+        foreach (range('A', $activeSheet->getHighestDataColumn()) as $col) {
+            $activeSheet->getColumnDimension($col)->setAutoSize(true);
+        }
+
+        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
+        header('Content-Disposition: attachment;filename="' . $exportFilename . '"');
+        header('Cache-Control: max-age=0');
+        header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
+        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
+        header('Cache-Control: cache, must-revalidate');
+        header('Pragma: public');
+
+        $xlsxWriter = new Xlsx($spreadsheet);
+
+        if (ob_get_level()) {
+            ob_end_clean();
+        }
+
+        $xlsxWriter->save('php://output');
+        exit;
+    }
 }