diff --git a/hub/catalog_factories/data_models/construction/archetype.py b/hub/catalog_factories/data_models/construction/archetype.py
index 39b2e4ce..4e4d1e19 100644
--- a/hub/catalog_factories/data_models/construction/archetype.py
+++ b/hub/catalog_factories/data_models/construction/archetype.py
@@ -132,3 +132,24 @@ class Archetype:
     :return: float
     """
     return self._infiltration_rate_for_ventilation_system_on
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _constructions = []
+    for _construction in self.constructions:
+      _constructions.append(_construction.to_dictionary())
+    content = {'Archetype': {'id': self.id,
+                             'name': self.name,
+                             'function': self.function,
+                             'climate zone': self.climate_zone,
+                             'period of construction': self.construction_period,
+                             'average storey height [m]': self.average_storey_height,
+                             'thermal capacity [J/m3K]': self.thermal_capacity,
+                             'extra loses due to thermal bridges [W/m2K]': self.extra_loses_due_to_thermal_bridges,
+                             'indirect heated ratio': self.indirect_heated_ratio,
+                             'infiltration rate for ventilation off [ACH]': self.infiltration_rate_for_ventilation_system_off,
+                             'infiltration rate for ventilation on [ACH]': self.infiltration_rate_for_ventilation_system_on,
+                             'constructions': _constructions
+                             }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/construction/construction.py b/hub/catalog_factories/data_models/construction/construction.py
index c178de7c..34f6e348 100644
--- a/hub/catalog_factories/data_models/construction/construction.py
+++ b/hub/catalog_factories/data_models/construction/construction.py
@@ -4,6 +4,7 @@ SPDX - License - Identifier: LGPL - 3.0 - or -later
 Copyright © 2022 Concordia CERC group
 Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 """
+
 from hub.catalog_factories.data_models.construction.layer import Layer
 from hub.catalog_factories.data_models.construction.window import Window
 
@@ -67,3 +68,21 @@ class Construction:
     :return: Window
     """
     return self._window
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _layers = []
+    for _layer in self.layers:
+      _layers.append(_layer.to_dictionary())
+    _window = None
+    if self.window is not None:
+      _window = self.window.to_dictionary()
+    content = {'Construction': {'id': self.id,
+                                'name': self.name,
+                                'type': self.type,
+                                'window ratio': self.window_ratio,
+                                'window': _window,
+                                'layers': _layers
+                                }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/construction/content.py b/hub/catalog_factories/data_models/construction/content.py
index 8fcb4ad1..dfb2753f 100644
--- a/hub/catalog_factories/data_models/construction/content.py
+++ b/hub/catalog_factories/data_models/construction/content.py
@@ -43,3 +43,21 @@ class Content:
     All windows in the catalog
     """
     return self._windows
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _archetypes = []
+    for _archetype in self.archetypes:
+      _archetypes.append(_archetype.to_dictionary())
+    content = {'Archetypes': _archetypes}
+
+    return content
+
+  def __str__(self):
+    """Print content"""
+    _archetypes = []
+    for _archetype in self.archetypes:
+      _archetypes.append(_archetype.to_dictionary())
+    content = {'Archetypes': _archetypes}
+
+    return str(content)
diff --git a/hub/catalog_factories/data_models/construction/layer.py b/hub/catalog_factories/data_models/construction/layer.py
index a55bdde0..2be8556b 100644
--- a/hub/catalog_factories/data_models/construction/layer.py
+++ b/hub/catalog_factories/data_models/construction/layer.py
@@ -5,6 +5,8 @@ Copyright © 2022 Concordia CERC group
 Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
 """
 
+from hub.catalog_factories.data_models.construction.material import Material
+
 
 class Layer:
   """
@@ -33,7 +35,7 @@ class Layer:
     return self._name
 
   @property
-  def material(self):
+  def material(self) -> Material:
     """
     Get layer material
     :return: Material
@@ -47,3 +49,13 @@ class Layer:
     :return: None or float
     """
     return self._thickness
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Layer': {'id': self.id,
+                         'name': self.name,
+                         'thickness [m]': self.thickness,
+                         'material': self.material.to_dictionary()
+                         }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/construction/material.py b/hub/catalog_factories/data_models/construction/material.py
index 5109fe7c..932c1119 100644
--- a/hub/catalog_factories/data_models/construction/material.py
+++ b/hub/catalog_factories/data_models/construction/material.py
@@ -110,3 +110,19 @@ class Material:
     :return: None or float
     """
     return self._thermal_resistance
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Material': {'id': self.id,
+                            'name': self.name,
+                            'is no-mass': self.no_mass,
+                            'density [kg/m3]': self.density,
+                            'specific heat [J/kgK]': self.specific_heat,
+                            'conductivity [W/mK]': self.conductivity,
+                            'thermal resistance [m2K/W]': self.thermal_resistance,
+                            'solar absorptance': self.solar_absorptance,
+                            'thermal absorptance': self.thermal_absorptance,
+                            'visible absorptance': self.visible_absorptance
+                            }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/construction/window.py b/hub/catalog_factories/data_models/construction/window.py
index 96804be4..e446d0c4 100644
--- a/hub/catalog_factories/data_models/construction/window.py
+++ b/hub/catalog_factories/data_models/construction/window.py
@@ -64,4 +64,16 @@ class Window:
     Get transparent surface type, 'window' or 'skylight'
     :return: str
     """
-    return self.type
+    return self._type
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Window': {'id': self.id,
+                          'name': self.name,
+                          'type': self.type,
+                          'frame ratio': self.frame_ratio,
+                          'g-value': self.g_value,
+                          'overall U value [W/m2K]': self.overall_u_value
+                          }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/cost/archetype.py b/hub/catalog_factories/data_models/cost/archetype.py
index 7749f400..bcfbe800 100644
--- a/hub/catalog_factories/data_models/cost/archetype.py
+++ b/hub/catalog_factories/data_models/cost/archetype.py
@@ -114,3 +114,19 @@ class Archetype:
     :return: Income
     """
     return self._income
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Archetype': {'name': self.name,
+                             'level of detail': self.lod,
+                             'municipality': self.municipality,
+                             'country': self.country,
+                             'currency': self.currency,
+                             'function': self.function,
+                             'capital cost': self.capital_cost.to_dictionary(),
+                             'operational cost': self.operational_cost.to_dictionary(),
+                             f'end of life cost [currency]': self.end_of_life_cost,
+                             'income': self.income.to_dictionary()
+                             }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/cost/capital_cost.py b/hub/catalog_factories/data_models/cost/capital_cost.py
index e68a71d1..7d4c8b82 100644
--- a/hub/catalog_factories/data_models/cost/capital_cost.py
+++ b/hub/catalog_factories/data_models/cost/capital_cost.py
@@ -51,3 +51,16 @@ class CapitalCost:
       if chapter.chapter_type == name:
         return chapter
     raise KeyError(f'Chapter name {name} not found')
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _chapters = []
+    for _chapter in self.general_chapters:
+      _chapters.append(_chapter.to_dictionary())
+    content = {'Capital cost': {'design allowance': self.design_allowance,
+                                'overhead and profit': self.overhead_and_profit,
+                                'chapters': _chapters
+                                }
+               }
+
+    return content
diff --git a/hub/catalog_factories/data_models/cost/chapter.py b/hub/catalog_factories/data_models/cost/chapter.py
index a1a35f8d..fee87281 100644
--- a/hub/catalog_factories/data_models/cost/chapter.py
+++ b/hub/catalog_factories/data_models/cost/chapter.py
@@ -43,3 +43,15 @@ class Chapter:
       if item.type == name:
         return item
     raise KeyError(f'Item name {name} not found')
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _items = []
+    for _item in self.items:
+      _items.append(_item.to_dictionary())
+    content = {'Chapter': {'chapter type': self.chapter_type,
+                           'items': _items
+                           }
+               }
+
+    return content
diff --git a/hub/catalog_factories/data_models/cost/content.py b/hub/catalog_factories/data_models/cost/content.py
index e124acd7..8e5b2dab 100644
--- a/hub/catalog_factories/data_models/cost/content.py
+++ b/hub/catalog_factories/data_models/cost/content.py
@@ -20,3 +20,21 @@ class Content:
     All archetypes in the catalog
     """
     return self._archetypes
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _archetypes = []
+    for _archetype in self.archetypes:
+      _archetypes.append(_archetype.to_dictionary())
+    content = {'Archetypes': _archetypes}
+
+    return content
+
+  def __str__(self):
+    """Print content"""
+    _archetypes = []
+    for _archetype in self.archetypes:
+      _archetypes.append(_archetype.to_dictionary())
+    content = {'Archetypes': _archetypes}
+
+    return str(content)
diff --git a/hub/catalog_factories/data_models/cost/fuel.py b/hub/catalog_factories/data_models/cost/fuel.py
index b16fb590..c8a52683 100644
--- a/hub/catalog_factories/data_models/cost/fuel.py
+++ b/hub/catalog_factories/data_models/cost/fuel.py
@@ -55,3 +55,14 @@ class Fuel:
     :return: None, None or float, str
     """
     return self._variable, self._variable_units
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Fuel': {'fuel type': self.type,
+                        'fixed operational costs [currency/month]': self.fixed_monthly,
+                        'fixed operational costs depending on the peak power consumed [currency/month kW]': self.fixed_power,
+                        f'variable costs [{self.variable[1]}]': self.variable[0]
+                        }
+               }
+
+    return content
diff --git a/hub/catalog_factories/data_models/cost/income.py b/hub/catalog_factories/data_models/cost/income.py
index 5962b579..b9a4f008 100644
--- a/hub/catalog_factories/data_models/cost/income.py
+++ b/hub/catalog_factories/data_models/cost/income.py
@@ -63,3 +63,15 @@ class Income:
     :return: None or float
     """
     return self._reductions_tax
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Income': {'construction subsidy': self.construction_subsidy,
+                          'hvac subsidy': self.hvac_subsidy,
+                          'photovoltaic subsidy': self.photovoltaic_subsidy,
+                          'electricity export': self.electricity_export,
+                          'reductions tax': self.reductions_tax
+                          }
+               }
+
+    return content
diff --git a/hub/catalog_factories/data_models/cost/item_description.py b/hub/catalog_factories/data_models/cost/item_description.py
index 7f69fb5f..b6d96bc9 100644
--- a/hub/catalog_factories/data_models/cost/item_description.py
+++ b/hub/catalog_factories/data_models/cost/item_description.py
@@ -69,3 +69,15 @@ class ItemDescription:
     :return: None or float
     """
     return self._lifetime
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Item': {'type': self.type,
+                        f'initial investment [{self.initial_investment[1]}]': self.initial_investment[0],
+                        f'refurbishment [{self.refurbishment[1]}]': self.refurbishment[0],
+                        f'reposition [{self.reposition[1]}]': self.reposition[0],
+                        'life time [years]': self.lifetime
+                        }
+               }
+
+    return content
diff --git a/hub/catalog_factories/data_models/cost/operational_cost.py b/hub/catalog_factories/data_models/cost/operational_cost.py
index b514d034..9b20466e 100644
--- a/hub/catalog_factories/data_models/cost/operational_cost.py
+++ b/hub/catalog_factories/data_models/cost/operational_cost.py
@@ -59,3 +59,18 @@ class OperationalCost:
     :return: float
     """
     return self._co2
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _fuels = []
+    for _fuel in self.fuels:
+      _fuels.append(_fuel.to_dictionary())
+    content = {'Maintenance': {'fuels': _fuels,
+                               'cost of maintaining the heating system [currency/W]': self.maintenance_heating,
+                               'cost of maintaining the cooling system [currency/W]': self.maintenance_cooling,
+                               'cost of maintaining the PV system [currency/W]': self.maintenance_pv,
+                               'cost of CO2 emissions [currency/kgCO2]': self.co2
+                               }
+               }
+
+    return content
diff --git a/hub/catalog_factories/data_models/energy_systems/archetype.py b/hub/catalog_factories/data_models/energy_systems/archetype.py
index cd3f7c15..cdfcea1f 100644
--- a/hub/catalog_factories/data_models/energy_systems/archetype.py
+++ b/hub/catalog_factories/data_models/energy_systems/archetype.py
@@ -43,3 +43,15 @@ class Archetype:
     :return: [Equipment]
     """
     return self._systems
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _systems = []
+    for _system in self.systems:
+      _systems.append(_system.to_dictionary())
+    content = {'Archetype': {'name': self.name,
+                             'level of detail': self.lod,
+                             'systems': _systems
+                             }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/energy_systems/content.py b/hub/catalog_factories/data_models/energy_systems/content.py
index 06b6a085..8042a73d 100644
--- a/hub/catalog_factories/data_models/energy_systems/content.py
+++ b/hub/catalog_factories/data_models/energy_systems/content.py
@@ -51,3 +51,21 @@ class Content:
     All emission equipments in the catalog
     """
     return self._emissions
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _archetypes = []
+    for _archetype in self.archetypes:
+      _archetypes.append(_archetype.to_dictionary())
+    content = {'Archetypes': _archetypes}
+
+    return content
+
+  def __str__(self):
+    """Print content"""
+    _archetypes = []
+    for _archetype in self.archetypes:
+      _archetypes.append(_archetype.to_dictionary())
+    content = {'Archetypes': _archetypes}
+
+    return str(content)
diff --git a/hub/catalog_factories/data_models/energy_systems/distribution_system.py b/hub/catalog_factories/data_models/energy_systems/distribution_system.py
index 3f22a520..aa195649 100644
--- a/hub/catalog_factories/data_models/energy_systems/distribution_system.py
+++ b/hub/catalog_factories/data_models/energy_systems/distribution_system.py
@@ -29,14 +29,6 @@ class DistributionSystem:
     """
     return self._system_id
 
-  @id.setter
-  def id(self, value):
-    """
-    Set system id
-    :param value: float
-    """
-    self._system_id = value
-
   @property
   def name(self):
     """
@@ -45,14 +37,6 @@ class DistributionSystem:
     """
     return self._name
 
-  @name.setter
-  def name(self, value):
-    """
-    Set name
-    :param value: string
-    """
-    self._name = value
-
   @property
   def type(self):
     """
@@ -81,7 +65,7 @@ class DistributionSystem:
   def distribution_consumption_variable_flow(self):
     """
     Get distribution_consumption if the pump or fan work at variable mass or volume flow in ratio
-    over energy produced (Wh/Wh)
+    over energy produced (J/J)
     :return: float
     """
     return self._distribution_consumption_variable_flow
@@ -89,7 +73,20 @@ class DistributionSystem:
   @property
   def heat_losses(self):
     """
-    Get heat_losses in ratio over energy produced
+    Get heat_losses in ratio over energy produced in J/J
     :return: float
     """
     return self._heat_losses
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Layer': {'id': self.id,
+                         'name': self.name,
+                         'type': self.type,
+                         'supply temperature [Celsius]': self.supply_temperature,
+                         'distribution consumption if fix flow over peak power [W/W]': self.distribution_consumption_fix_flow,
+                         'distribution consumption if variable flow over peak power [J/J]': self.distribution_consumption_variable_flow,
+                         'heat losses per energy produced [J/J]': self.heat_losses
+                         }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/energy_systems/emission_system.py b/hub/catalog_factories/data_models/energy_systems/emission_system.py
index f869a4a4..5e9d2865 100644
--- a/hub/catalog_factories/data_models/energy_systems/emission_system.py
+++ b/hub/catalog_factories/data_models/energy_systems/emission_system.py
@@ -25,14 +25,6 @@ class EmissionSystem:
     """
     return self._system_id
 
-  @id.setter
-  def id(self, value):
-    """
-    Set system id
-    :param value: float
-    """
-    self._system_id = value
-
   @property
   def name(self):
     """
@@ -41,14 +33,6 @@ class EmissionSystem:
     """
     return self._name
 
-  @name.setter
-  def name(self, value):
-    """
-    Set name
-    :param value: string
-    """
-    self._name = value
-
   @property
   def type(self):
     """
@@ -60,7 +44,17 @@ class EmissionSystem:
   @property
   def parasitic_energy_consumption(self):
     """
-    Get parasitic_energy_consumption in ratio (Wh/Wh)
+    Get parasitic_energy_consumption in ratio (J/J)
     :return: float
     """
     return self._parasitic_energy_consumption
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Layer': {'id': self.id,
+                         'name': self.name,
+                         'type': self.type,
+                         'parasitic energy consumption per energy produced [J/J]': self.parasitic_energy_consumption
+                         }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/energy_systems/generation_system.py b/hub/catalog_factories/data_models/energy_systems/generation_system.py
index 04069a96..1728540f 100644
--- a/hub/catalog_factories/data_models/energy_systems/generation_system.py
+++ b/hub/catalog_factories/data_models/energy_systems/generation_system.py
@@ -37,14 +37,6 @@ class GenerationSystem:
     """
     return self._system_id
 
-  @id.setter
-  def id(self, value):
-    """
-    Set system id
-    :param value: float
-    """
-    self._system_id = value
-
   @property
   def name(self):
     """
@@ -53,14 +45,6 @@ class GenerationSystem:
     """
     return self._name
 
-  @name.setter
-  def name(self, value):
-    """
-    Set name
-    :param value: string
-    """
-    self._name = value
-
   @property
   def type(self):
     """
@@ -140,3 +124,24 @@ class GenerationSystem:
     :return: GenerationSystem
     """
     return self._auxiliary_equipment
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _auxiliary_equipment = []
+    if self.auxiliary_equipment is not None:
+      _auxiliary_equipment = self.auxiliary_equipment.to_dictionary()
+    content = {'Layer': {'id': self.id,
+                         'name': self.name,
+                         'type': self.type,
+                         'fuel type': self.fuel_type,
+                         'source types': self.source_types,
+                         'source temperature [Celsius]': self.source_temperature,
+                         'source mass flow [kg/s]': self.source_mass_flow,
+                         'heat efficiency': self.heat_efficiency,
+                         'cooling efficiency': self.cooling_efficiency,
+                         'electricity efficiency': self.electricity_efficiency,
+                         'it has storage': self.storage,
+                         'auxiliary equipment': _auxiliary_equipment
+                         }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/energy_systems/system.py b/hub/catalog_factories/data_models/energy_systems/system.py
index c4bf0258..f5804c83 100644
--- a/hub/catalog_factories/data_models/energy_systems/system.py
+++ b/hub/catalog_factories/data_models/energy_systems/system.py
@@ -88,3 +88,22 @@ class System:
     :return: EmissionSystem
     """
     return self._emission_system
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _distribution_system = None
+    if self.distribution_system is not None:
+      _distribution_system = self.distribution_system.to_dictionary()
+    _emission_system = None
+    if self.emission_system is not None:
+      _emission_system = self.emission_system.to_dictionary()
+    content = {'Layer': {'id': self.id,
+                         'name': self.name,
+                         'level of detail': self.lod,
+                         'demand types': self.demand_types,
+                         'generation system': self.generation_system.to_dictionary(),
+                         'distribution system': _distribution_system,
+                         'emission system': _emission_system
+                         }
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/usages/appliances.py b/hub/catalog_factories/data_models/usages/appliances.py
index c519cf44..fd16b913 100644
--- a/hub/catalog_factories/data_models/usages/appliances.py
+++ b/hub/catalog_factories/data_models/usages/appliances.py
@@ -61,3 +61,16 @@ class Appliances:
     :return: None or [Schedule]
     """
     return self._schedules
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _schedules = []
+    for _schedule in self.schedules:
+      _schedules.append(_schedule.to_dictionary())
+    content = {'Appliances': {'density [W/m2]': self.density,
+                              'convective fraction': self.convective_fraction,
+                              'radiative fraction': self.radiative_fraction,
+                              'latent fraction': self.latent_fraction,
+                              'schedules': _schedules}
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/usages/content.py b/hub/catalog_factories/data_models/usages/content.py
index ffc34a4f..9fe730d1 100644
--- a/hub/catalog_factories/data_models/usages/content.py
+++ b/hub/catalog_factories/data_models/usages/content.py
@@ -20,3 +20,21 @@ class Content:
     Get catalog usages
     """
     return self._usages
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _usages = []
+    for _usage in self.usages:
+      _usages.append(_usage.to_dictionary())
+    content = {'Usages': _usages}
+
+    return content
+
+  def __str__(self):
+    """Print content"""
+    _usages = []
+    for _usage in self.usages:
+      _usages.append(_usage.to_dictionary())
+    content = {'Usages': _usages}
+
+    return str(content)
diff --git a/hub/catalog_factories/data_models/usages/domestic_hot_water.py b/hub/catalog_factories/data_models/usages/domestic_hot_water.py
index 0eb9d9f5..15fb66ba 100644
--- a/hub/catalog_factories/data_models/usages/domestic_hot_water.py
+++ b/hub/catalog_factories/data_models/usages/domestic_hot_water.py
@@ -52,3 +52,15 @@ class DomesticHotWater:
     :return: None or [Schedule]
     """
     return self._schedules
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _schedules = []
+    for _schedule in self.schedules:
+      _schedules.append(_schedule.to_dictionary())
+    content = {'Domestic hot water': {'density [W/m2]': self.density,
+                                      'peak flow [m3/sm2]': self.peak_flow,
+                                      'service temperature [Celsius]': self.service_temperature,
+                                      'schedules': _schedules}
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/usages/internal_gain.py b/hub/catalog_factories/data_models/usages/internal_gain.py
deleted file mode 100644
index 447ce80a..00000000
--- a/hub/catalog_factories/data_models/usages/internal_gain.py
+++ /dev/null
@@ -1,20 +0,0 @@
-"""
-Usage catalog internal gain
-SPDX - License - Identifier: LGPL - 3.0 - or -later
-Copyright © 2022 Concordia CERC group
-Project Coder Guille Gutierrez guillermo.gutierrezmorote@concordia.ca
-"""
-
-
-class InternalGain:
-  """
-  InternalGain class
-  """
-
-  def __init__(self, internal_gain_type, average_internal_gain, convective_fraction, radiative_fraction, latent_fraction, schedules):
-    self._type = internal_gain_type
-    self._average_internal_gain = average_internal_gain
-    self._convective_fraction = convective_fraction
-    self._radiative_fraction = radiative_fraction
-    self._latent_fraction = latent_fraction
-    self._schedules = schedules
diff --git a/hub/catalog_factories/data_models/usages/lighting.py b/hub/catalog_factories/data_models/usages/lighting.py
index 29e8a490..2d9420fe 100644
--- a/hub/catalog_factories/data_models/usages/lighting.py
+++ b/hub/catalog_factories/data_models/usages/lighting.py
@@ -61,3 +61,16 @@ class Lighting:
     :return: None or [Schedule]
     """
     return self._schedules
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _schedules = []
+    for _schedule in self.schedules:
+      _schedules.append(_schedule.to_dictionary())
+    content = {'Lighting': {'density [W/m2]': self.density,
+                            'convective fraction': self.convective_fraction,
+                            'radiative fraction': self.radiative_fraction,
+                            'latent fraction': self.latent_fraction,
+                            'schedules': _schedules}
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/usages/occupancy.py b/hub/catalog_factories/data_models/usages/occupancy.py
index e2d7269a..353ab2d9 100644
--- a/hub/catalog_factories/data_models/usages/occupancy.py
+++ b/hub/catalog_factories/data_models/usages/occupancy.py
@@ -65,3 +65,16 @@ class Occupancy:
     :return: None or [Schedule]
     """
     return self._schedules
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _schedules = []
+    for _schedule in self.schedules:
+      _schedules.append(_schedule.to_dictionary())
+    content = {'Occupancy': {'occupancy density [persons/m2]': self.occupancy_density,
+                             'sensible convective internal gain [W/m2]': self.sensible_convective_internal_gain,
+                             'sensible radiative internal gain [W/m2]': self.sensible_radiative_internal_gain,
+                             'latent internal gain [W/m2]': self.latent_internal_gain,
+                             'schedules': _schedules}
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/usages/schedule.py b/hub/catalog_factories/data_models/usages/schedule.py
index 5f28e37d..73f03904 100644
--- a/hub/catalog_factories/data_models/usages/schedule.py
+++ b/hub/catalog_factories/data_models/usages/schedule.py
@@ -73,3 +73,14 @@ class Schedule:
     :return: None or [str]
     """
     return self._day_types
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Schedule': {'type': self.type,
+                            'time range': self.time_range,
+                            'time step': self.time_step,
+                            'data type': self.data_type,
+                            'day types': self.day_types,
+                            'values': self.values}
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/usages/thermal_control.py b/hub/catalog_factories/data_models/usages/thermal_control.py
index 0df90b0e..7c965b06 100644
--- a/hub/catalog_factories/data_models/usages/thermal_control.py
+++ b/hub/catalog_factories/data_models/usages/thermal_control.py
@@ -76,3 +76,23 @@ class ThermalControl:
     :return: None or [Schedule]
     """
     return self._cooling_set_point_schedules
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    _hvac_schedules = []
+    for _schedule in self.hvac_availability_schedules:
+      _hvac_schedules.append(_schedule.to_dictionary())
+    _heating_set_point_schedules = []
+    for _schedule in self.heating_set_point_schedules:
+      _heating_set_point_schedules.append(_schedule.to_dictionary())
+    _cooling_set_point_schedules = []
+    for _schedule in self.cooling_set_point_schedules:
+      _cooling_set_point_schedules.append(_schedule.to_dictionary())
+    content = {'Thermal control': {'mean heating set point [Celsius]': self.mean_heating_set_point,
+                                   'heating set back [Celsius]': self.heating_set_back,
+                                   'mean cooling set point [Celsius]': self.mean_cooling_set_point,
+                                   'hvac availability schedules': _hvac_schedules,
+                                   'heating set point schedules': _heating_set_point_schedules,
+                                   'cooling set point schedules': _cooling_set_point_schedules}
+               }
+    return content
diff --git a/hub/catalog_factories/data_models/usages/usage.py b/hub/catalog_factories/data_models/usages/usage.py
index 25a54d5f..41065cae 100644
--- a/hub/catalog_factories/data_models/usages/usage.py
+++ b/hub/catalog_factories/data_models/usages/usage.py
@@ -125,3 +125,19 @@ class Usage:
     :return: None or DomesticHotWater
     """
     return self._domestic_hot_water
+
+  def to_dictionary(self):
+    """Class content to dictionary"""
+    content = {'Usage': {'name': self.name,
+                         'hours a day': self.hours_day,
+                         'days a year': self.days_year,
+                         'mechanical air change [ACH]': self.mechanical_air_change,
+                         'ventilation rate [m3/sm2]': self.ventilation_rate,
+                         'occupancy': self.occupancy.to_dictionary(),
+                         'lighting': self.lighting.to_dictionary(),
+                         'appliances': self.appliances.to_dictionary(),
+                         'thermal control': self.thermal_control.to_dictionary(),
+                         'domestic hot water': self.domestic_hot_water.to_dictionary()
+                         }
+               }
+    return content