+// interpolated house numbers
+$iParentPlaceID = chksql($oDB->getOne('SELECT parent_place_id FROM location_property_osmline WHERE place_id = '.$iPlaceID));
+if ($iParentPlaceID) $iPlaceID = $iParentPlaceID;
+
+// artificial postcodes
+$iParentPlaceID = chksql($oDB->getOne('SELECT parent_place_id FROM location_postcode WHERE place_id = '.$iPlaceID));
+if ($iParentPlaceID) $iPlaceID = $iParentPlaceID;
+