The House in Lisbon is a single family house, set in a plot overlooking the Vale do Silêncio, the project concept is characterized by the interior/exterior connection in order to create spatial continuity, but it is also defined by the antagonism between tradition and innovation. With only a change in the side and rear structure, the single-family dwelling gained a new flat roof body, which aligns with the roof of the pre-existing habitation, thus creating a hybrid of architectural contrasts.