diff --git a/city_model_structure/building.py b/city_model_structure/building.py
index fc8f99a4..ae14ad05 100644
--- a/city_model_structure/building.py
+++ b/city_model_structure/building.py
@@ -284,7 +284,6 @@ class Building(CityObject):
     """
     building monthly heating values in Watts-hour
     :param value: [heating demand]
-    :return: List of float (12 values)
     """
     self._monthly_heating = value
 
@@ -301,6 +300,5 @@ class Building(CityObject):
     """
     building monthly cooling values in Watts-hour
     :param value: [heating demand]
-    :return: List of float (12 values)
     """
     self._monthly_cooling = value