Energy renovation: in Essonne, the eco-housing bonus relieves ‘the wallet and the environment’ With 80 million euros allocated over five years, this departmental works aid system has benefited 36,000 individual housing units and 5 million households. In 2019, Essonne was the first department to offer assistance – which can be combined with MaPrimeRénov', financed by the State – for owners wanting to begin the ecological transition of their homes.

With 200,000 owners of private or collective housing at the head of energy-intensive assets in their sights.