In a narrow plot, on the Beira-mar district, in Salineiras Street, the house had to face north. Taking advantage of other projects experience in which we chose to put the social floor on the upper one, the exercise here went further, exploring the possibility of an all purpose room. It had to be, simultaneously, a living space, a kitchen and an office. To afford this, the project compresses the two floors below to the minimum legal – with two bedrooms and a bathroom and expands the upper floor to the ceiling to contain all the social spaces. This ‘all in one’ floor proposes a "mezzanine" with a desk space and a bookcase, acting like an office. In the same room, below, we used the two sides to organize the kitchen facing north, and the living room facing south. The first floor, confronting the street, has a garage entrance and storage.