The objective of the renovation of the Foyer Blida, located at 23 avenue de Blida in Metz, is to allow a wider reception of the most fragile audiences and to improve its support and modernize the housing offer. This leads to the creation of new forms of housing within the home to reach a more varied audience and promote a residential path. Thus, the 299 rooms (with a water point) and the collective sanitary areas (WCs and showers) will be redesigned in order to: - Create 60 studios instead of 120 rooms as part of PLAI funding, - Humanize 119 rooms by adding comfort elements (addition of bathroom in the rooms) largely subsidized by ANAH, - Restructure and optimize common spaces to meet the challenges of the structure in terms of social support, - Residentialize and develop outdoor spaces, The work on the building envelope improves the level of energy performance to achieve a B label, BBC level renovation.