This project on digital twins offers a significant contribution to academic and industrial research by introducing innovative applications to real estate asset management. The creation of a digital twin for the PVM 1 building, with its Revit model transposed onto Autodesk Forge and Unreal Engine 5.1, represents a significant technological advance. The implementation of BIM at Place Ville Marie, using the Flex space as a pilot project, concretely demonstrates the potential benefits for the property management team. The integration of sensor data (temperature, air quality, occupancy rate) into Forge via Azure Database, as well as the connection to Density and Kaiterra sensors, bring practical functionalities to the digital twin. These results open up interesting prospects for real-time occupant monitoring and comfort, as well as building energy management. However, the mention of data security concerns underlines the need for careful thought in the development of these technologies to ensure their safe and ethical use. Other use cases were also studied, highlighting a number of promising applications for the use of a digital twin in property management.