Dr. Prévost housing project is situated in a residential neighbourhood close to the city centre and in the process of being urbanized. The master plan of the area, insensible to its context and partly ignoring the topography, demands a sturdy L-shaped, eight story building in the middle of a neighbourhood composed of individual villas with neat gardens. A dense programme, severely regulated by housing laws and economical pressure, intends for a predefined mix of social housing and afforda