Geometrized, quantified, the void is the predominant material of facades. Organized in an accumulation of cavities, the voids increase the surface area of ​​the accommodation by adding exterior volumes; contained volumes where everyone’s privacy is defined and protected by a constructive framework: half-balcony, half-loggia, but certainly extension surfaces for housing that is never large enough. The fundamental and structuring choice of the project is to offer all dwellings large extension areas, with an architecture that allows the greatest number of dwellings to be extended by generous semi-outdoor spaces in the form of loggias, multiplied balconies. . These exterior surfaces are a generous articulation between interior and exterior, between the home and its environment. Balconies are not only exterior surfaces, but characterized spaces. These generous outdoor spaces, real spaces of freedom, make it possible to increase the number of private surfaces in a search for harmony between an urban universe and a voluntary idea of ​​the place of nature in the habitat.