The energy rehabilitation programme of the residence has been designed in a comprehensive manner. It includes replacement of the heating system, transition from a dual electric heating to electric radiators with integrated programming and intelligent control, exterior carpentry, installation of an adjustable hygro VMC, insulation from the exterior of the facades. The energy gain will be significant, with a shift from class E to C, which will result in a reduction in the charges for tenants without an increase in rent. This project was carried out in consultation with tenants who will receive at the end of the work an awareness on sustainable development, a guide on eco gestures, water saving.