diff --git a/imports/geometry/citygml.py b/imports/geometry/citygml.py
index 5bcbe109..869dcf43 100644
--- a/imports/geometry/citygml.py
+++ b/imports/geometry/citygml.py
@@ -88,7 +88,6 @@ class CityGml:
           lod = 2
           surfaces = CityGmlLod2(o).surfaces
         elif 'consistsOfBuildingPart' in o['Building']:
-
           raise NotImplementedError("Building cluster")
         '''
         if 'lod1Solid' in o['Building']:
diff --git a/imports/geometry/citygml_lod2.py b/imports/geometry/citygml_lod2.py
index 8b80c7dd..910656b2 100644
--- a/imports/geometry/citygml_lod2.py
+++ b/imports/geometry/citygml_lod2.py
@@ -43,8 +43,6 @@ class CityGmlLod2(CityGmlBase):
         p = Polygon(sp)
         surface = Surface(p,p, surface_type=GeometryHelper.gml_surface_to_libs(surface_type))
         surfaces.append(surface)
-    for p in o["Building"]["consistsOfBuildingPart"]:
-      raise NotImplementedError
     return surfaces