A local carpentry, in the working-class neighborhood of Montelly in Lausanne, is refurbished in a small house. Surrounded by buildings , the project has only one facade with windows. The roof has a sky opened patio to allow a « 2ndfacade » which brings light to the upper floor living space. The « Maisonnette » is modest in its size, but it benefits of tall ceilings and generously proportioned windows.