The layout of the ground floor is characterized by the fluidity of its three spaces, which are organized around the central fireplace, which alone endures the entire heating of this passive house. The kitchen and an intimate living room are located on either side of the carved staircase of a single piece of prefabricated steel, while two steps higher a living room crossing opens into a vast terrace with a cantilever on the street. This house blurs the boundaries between private and public, to the benefit of user-friendly rooms opened to the exterior.