diff --git a/city_model_structure/building.py b/city_model_structure/building.py
index e5cb47c0..6fd8a779 100644
--- a/city_model_structure/building.py
+++ b/city_model_structure/building.py
@@ -20,8 +20,8 @@ class Building(CityObject):
   """
   Building(CityObject) class
   """
-  def __init__(self, name, lod, surfaces, year_of_construction, function, city_lower_corner, terrains=None):
-    super().__init__(name, lod, surfaces, city_lower_corner)
+  def __init__(self, name, surfaces, year_of_construction, function, city_lower_corner, terrains=None):
+    super().__init__(name, surfaces, city_lower_corner)
     self._households = None
     self._basement_heated = None
     self._attic_heated = None
diff --git a/city_model_structure/bus_system.py b/city_model_structure/bus_system.py
index 2ad29ca3..328834ae 100644
--- a/city_model_structure/bus_system.py
+++ b/city_model_structure/bus_system.py
@@ -17,8 +17,8 @@ class BusSystem(CityObject):
   """
   BusSystem(CityObject) class
   """
-  def __init__(self, name, lod, surfaces, city_lower_corner):
-    super().__init__(name, lod, surfaces, city_lower_corner)
+  def __init__(self, name, surfaces, city_lower_corner):
+    super().__init__(name, surfaces, city_lower_corner)
     self._bus_routes = None
     self._bus_network = None
     self._buses = None
diff --git a/city_model_structure/city.py b/city_model_structure/city.py
index 4af8df24..e8d1f964 100644
--- a/city_model_structure/city.py
+++ b/city_model_structure/city.py
@@ -21,6 +21,7 @@ from city_model_structure.city_objects_cluster import CityObjectsCluster
 from city_model_structure.buildings_cluster import BuildingsCluster
 from city_model_structure.fuel import Fuel
 from city_model_structure.iot.station import Station
+from city_model_structure.level_of_detail import LevelOfDetail
 from city_model_structure.machine import Machine
 from city_model_structure.parts_consisting_building import PartsConsistingBuilding
 from city_model_structure.subway_entrance import SubwayEntrance
@@ -59,6 +60,7 @@ class City:
     self._machines = None
     self._stations = []
     self._lca_materials = None
+    self._level_of_detail = LevelOfDetail()
 
   @property
   def fuels(self) -> [Fuel]:
@@ -287,7 +289,6 @@ class City:
     selected_region_upper_corner = [center[0] + radius, center[1] + radius, center[2] + radius]
     selected_region_city = City(selected_region_lower_corner, selected_region_upper_corner, srs_name=self.srs_name)
     selected_region_city.climate_file = self.climate_file
-#    selected_region_city.climate_reference_city = self.climate_reference_city
     for city_object in self.city_objects:
       location = city_object.centroid
       if location is not None:
@@ -426,9 +427,9 @@ class City:
     """
     self._lca_materials = value
 
-  def lca_material(self, lca_id) -> LcaMaterial:
+  def lca_material(self, lca_id) -> Union[LcaMaterial, None]:
     """
-    Get the lca materiol matching the given Id
+    Get the lca material matching the given Id
     :return: LcaMaterial or None
     """
     for lca_material in self.lca_materials:
@@ -448,3 +449,7 @@ class City:
     for city_object in city.city_objects:
       _merge_city.add_city_object(city_object)
     return _merge_city
+
+  @property
+  def level_of_detail(self):
+      return self._level_of_detail
diff --git a/city_model_structure/city_object.py b/city_model_structure/city_object.py
index 16447583..a6cb8796 100644
--- a/city_model_structure/city_object.py
+++ b/city_model_structure/city_object.py
@@ -18,9 +18,8 @@ class CityObject:
   """
   class CityObject
   """
-  def __init__(self, name, lod, surfaces, city_lower_corner):
+  def __init__(self, name, surfaces, city_lower_corner):
     self._name = name
-    self._lod = lod
     self._surfaces = surfaces
     self._city_lower_corner = city_lower_corner
     self._type = None
@@ -45,15 +44,6 @@ class CityObject:
     """
     return self._name
 
-  @property
-  def lod(self) -> int:
-    """
-    Get city object level of detail 1, 2, 3 or 4
-    :return: int
-    """
-    lod = int(math.log(self._lod, 2) + 1)
-    return lod
-
   @property
   def type(self) -> str:
     """
diff --git a/city_model_structure/energy_system.py b/city_model_structure/energy_system.py
index 3c7f5002..993b474f 100644
--- a/city_model_structure/energy_system.py
+++ b/city_model_structure/energy_system.py
@@ -16,8 +16,8 @@ class EnergySystem(CityObject):
   EnergySystem(CityObject) class
   """
 
-  def __init__(self, name, lod, surfaces, city_lower_corner):
-    super().__init__(name, lod, surfaces, city_lower_corner)
+  def __init__(self, name, surfaces, city_lower_corner):
+    super().__init__(name, surfaces, city_lower_corner)
     self._air_source_hp = None
     self._water_to_water_hp = None
     self._type = 'energy_system'
diff --git a/city_model_structure/level_of_detail.py b/city_model_structure/level_of_detail.py
new file mode 100644
index 00000000..5f6c8274
--- /dev/null
+++ b/city_model_structure/level_of_detail.py
@@ -0,0 +1,57 @@
+"""
+Level of detail module
+SPDX - License - Identifier: LGPL - 3.0 - or -later
+Copyright © 2022 Concordia CERC group
+Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
+"""
+
+class LevelOfDetail:
+  """
+  Level of detail for the city class
+  """
+  def __init__(self):
+    self._geometry = None
+    self._construction = None
+    self._usage = None
+
+  @property
+  def geometry(self):
+    """
+    Get the city minimal geometry level of detail
+    """
+    return self._geometry
+
+  @geometry.setter
+  def geometry(self, value):
+    """
+    Set the city minimal geometry level of detail
+    """
+    self._geometry = value
+
+  @property
+  def construction(self):
+    """
+    Get the city minimal construction level of detail
+    """
+    return self._construction
+
+  @construction.setter
+  def construction(self, value):
+    """
+    Set the city minimal construction level of detail
+    """
+    self._construction = value
+
+  @property
+  def usage(self):
+    """
+    Get the city minimal usage level of detail
+    """
+    return self._usage
+
+  @usage.setter
+  def usage(self, value):
+    """
+    Set the city minimal usage level of detail
+    """
+    self._usage = value
diff --git a/unittests/test_insel_exports.py b/unittests/test_insel_exports.py
index fbadd3d8..bc6b2776 100644
--- a/unittests/test_insel_exports.py
+++ b/unittests/test_insel_exports.py
@@ -100,8 +100,8 @@ class TestExports(TestCase):
       building.year_of_construction = 2006
       if building.function is None:
         building.function = 'large office'
-      building.attic_heated = False
-      building.basement_heated = False
+      building.attic_heated = 0
+      building.basement_heated = 0
     ConstructionFactory('nrel', city).enrich()
     UsageFactory('comnet', city).enrich()
 
@@ -141,9 +141,8 @@ class TestExports(TestCase):
           self.assertIsNotNone(usage_zone.days_year, f'usage zone {usage_zone.usage} days_year is none')
           self.assertIsNotNone(usage_zone.mechanical_air_change, f'usage zone {usage_zone.usage} '
                                                                  f'mechanical_air_change is none')
-
     # export files
     try:
-      EnergyBuildingsExportsFactory('insel_monthly_energy_balance', city, self._output_path).export_debug()
+      EnergyBuildingsExportsFactory('insel_monthly_energy_balance', city, self._output_path).export()
     except Exception:
       self.fail("Insel MonthlyEnergyBalance ExportsFactory raised ExceptionType unexpectedly!")