The Victor Hugo Tower dictates the architectural, urban and environmental ambition of the future Bas Clichy district. This thermal rehabilitation is ambitious while improving the image of the building so that it fits best in the future urban project. The objective of this project is above all to improve the living environment of residents, both in terms of housing, common areas, equipment and security. The renovation of the building is carried out as part of a global performance contract with energy performance guarantee, which gives it an obligation of result.