The energy rehabilitation program of the residence has been designed in a global approach. It includes the replacement of the heating system, switching from an electric heating to a gas boiler and gas rod, replacing the exterior joinery and the front door, insulation of the attic and roof of the garage. The energy gain will be significant, with a change from class G to C, which will result in lower charges for tenants without rent increases. This project was carried out in consultation with tenants who will receive at the end of the work awareness advice on sustainable development, a guide on eco-gestes, water savings...