With its energy rehabilitation project for 40 dwellings, M C meets specific objective 2.1: Promote energy efficiency measures and reduce greenhouse gas emissions and Action 2: "Energy rehabilitation of social housing (public park)". M C thermally rehabilitates a heritage consisting of 80 individual dwellings, built in the 1920s. The project consists of an ITI for the main building, insulation of the lost attic, replacement of exterior joinery and blackouts, replacement of heating, and installation of the VMC. The objective of the rehabilitation is based on three actions: - thermal insulation from the inside - central heating + vmc - change of joinery to double glazing + shutters The work will improve the energy label from F to C.