The project elaboration has started from the request of building two houses on the same site – each one for one brother. The lofts are almost the same, having only some small modifications in program and detail between them, and that’s where their nickname comes from Casas Gêmeas, which in Portuguese means "twin houses". Attending each dweller specificity, one of the houses has a wide living room located on the ground floor and two bedrooms and a suite upstairs. In the other house, part of the living room was transformed into an office/clinic, since the owner often works from home.

One of the bedrooms upstairs was turned into a flexible room which can assume diverse uses. Due to the narrow lot, providing less than 10 meters wide for each house, we chose to occupy its lateral distance and make room for three patios. Those openings bring the outside inside the house, creating a fluid and blurred line between them. Besides the frontal and the backyard patio, there is the central patio, one of the residence’s main elements, responsible for bringing light and air to the social areas placed around it.