The project site is atypical : it is a land-tax unit made up of 3 parcels, rather narrow, equivalent width and deep enough.The neighboring house is very impressive: r+5 on one side and r+7 on the other. The central plot is occupied by a small building to preserve, established in advance to the future buildings. This situation reinforces its presence. The project consists in breaking the parcel into 3 separate bands with three different buildings, as much in their volume as in facade materials : aluminum cladding, rehabilitation lime plaster, stained concrete.Side street, the front has three architectures, which does not suggest that this is a major housing project. This configuration allows, from an urban perspective, to restore the historic composition plot, certainly more favorable to the preserved building : no postmodern effect with the preserved building symmetrically framed by two identical new buildings . From an architectural and social standpoint that allows to break the scale of the large complex of housing to offer the scale of the Parisian building, more domestic.The created buildings have their own address : 20, 22 and 24 Basfroi street and their input, their mailboxes, their common premises. This encourages ownership and identification of housing for its inhabitants. From the standpoint of customs, it provides good functionality.