diff --git a/capital_cost.py b/capital_cost.py
index 4e84684..94f659b 100644
--- a/capital_cost.py
+++ b/capital_cost.py
@@ -4,22 +4,31 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Project Coder Atiya atiya.atiya@mail.concordia.ca
 """
 
-from city_model_structure.city import City
+
+
 
 class CapitalCost:
 
-  def __init__(self, city):
-    self._city = city
+  def calculate_capital_cost(building_area, building_volume, content):
+    structural_cost = float(content.costs[0].capital_cost.structural_cost) * building_volume
+    sub_structural_cost = float(content.costs[0].capital_cost.sub_structural_cost) * building_volume
+    lighting_cost = float(content.costs[0].capital_cost.lighting_cost) * building_volume
+    surface_finish_cost = float(content.costs[0].capital_cost.surface_finish_cost) * building_volume
+    engineer_cost = float(content.costs[0].capital_cost.engineer_cost) * building_volume
+    envelop_cost = float(content.costs[0].capital_cost.EnvelopCost.reposition) * building_volume +
+    # system_cost = float(content.costs[0].capital_cost.system_cost) * building_volume
+    # subsidy = float(content.costs[0].capital_cost.subsidy) * building_volume
+
+    print("structural_cost  ", structural_cost)
+    print("sub_structural_cost  ", sub_structural_cost)
+    print("lighting_cost  ", lighting_cost)
+    print("surface_finish_cost  ", surface_finish_cost)
+    print("engineer_cost  ", engineer_cost)
+    # print("envelop_cost  ", envelop_cost)
+    # print("system_cost  ", system_cost)
+    # print("subsidy  ", subsidy)
 
-  @property
-  def city(self) -> City:
-    return self._city
 
-  def calculate_capital_cost(building):
-    print("calculate_capital_cost called")
-    for internal_zone in building.internal_zones:
-      print("volume of the building ", internal_zone.volume)
-      print("area of the building ", internal_zone.area)
       # for thermal_zone in internal_zone.thermal_zones:
       #   for thermal_boundary in thermal_zone.thermal_boundaries:
       #     total_opaque_area = []
diff --git a/life_cycle_costs.py b/life_cycle_costs.py
index e18046d..144c31a 100644
--- a/life_cycle_costs.py
+++ b/life_cycle_costs.py
@@ -6,6 +6,7 @@ Copyright © 2022 Project Author Pilar Monsalvete Alvarez de Uribarri pilar_mons
 import math
 from capital_cost import CapitalCost
 
+
 class LifeCycleCosts:
 
   # todo: this should be (city, costs_catalog) or similar
@@ -25,6 +26,8 @@ class LifeCycleCosts:
 
     self._concepts = concepts
 
+
+
   def calculate_capital_costs(self):
     total_capital_costs = self._capital_costs_at_year_0
     for year in range(1, self._number_of_years + 1):
@@ -55,5 +58,13 @@ class LifeCycleCosts:
         total_maintenance_costs += concept.mantainance_costs * costs_increase
     return total_maintenance_costs
 
-  def capital_cost(one_building):
-    CapitalCost.calculate_capital_cost(one_building)
\ No newline at end of file
+  def capital_cost(one_building, content):
+    # print(len(one_building.internal_zones))
+    building_volume = 0.0
+    building_area = 0.0
+    for internal_zone in one_building.internal_zones:
+      building_area += internal_zone.area
+      building_volume += internal_zone.volume
+    # print("area of the building ", building_area)
+    # print("volume of the building ", building_volume)
+    CapitalCost.calculate_capital_cost(building_area, building_volume, content)
\ No newline at end of file
diff --git a/main.py b/main.py
index 2e0a158..88c3f58 100644
--- a/main.py
+++ b/main.py
@@ -9,6 +9,8 @@ from imports.geometry_factory import GeometryFactory
 from capital_cost import CapitalCost
 from life_cycle_costs import LifeCycleCosts
 from imports.construction_factory import ConstructionFactory
+from catalog_factories.costs_catalog_factory import CostCatalogFactory
+
 
 gml_file = 'one_building_in_kelowna.gml'
 file = Path(gml_file).resolve()
@@ -18,10 +20,15 @@ ConstructionFactory('nrel', city).enrich()
 
 number_of_years = 40
 consumer_price_index = 0.1
+catalog = CostCatalogFactory('montreal_catalog').catalog
+content = catalog.entries()
 
 for building in city.buildings:
-  print("for building in city.buildings:")
-  LifeCycleCosts.capital_cost(building)
+  LifeCycleCosts.capital_cost(building, content)
+  catalog = CostCatalogFactory('montreal_catalog').catalog
+  content = catalog.entries()
+  # print(len(content.costs))
+
   # lcc = LifeCycleCosts(building, number_of_years, consumer_price_index, costs_catalog)
   # total_capital_costs = lcc.calculate_capital_costs()
   # end_of_life_costs = lcc.calculate_end_of_life_costs()