The UP house was developed for two families in the same address (couple with children + parent’s in laws of them). Thus, the construction is divided into 3 volumes and guarantees independence between the parts. The lower volume is the in-laws' apartment, functionally isolated from the rest of the house, giving privacy and comfort to them. The ground floor contains the social area, opened to the outdoor area and swimming pool. In the upper volume, there is the intimate area, interconnected to the other floors by vertical circulation (stairs). Like that, we guarantee an intense social life and, at the same time, privacy to the different residents in their daily functions. The openings are strategically placed under the beautiful rear view of the surroundings, enhanced by the use of the metal structure, which releases larger spans for the use of glass.