The site is located in a residential zone adjacent to the southwest of Monterrey, on a highland forested zone. The house program is fragmented according to each component’s function and role within the site; all enclosed in a perfect square in the general plan. Each volume located in the corners. The social area is on the first level, within a mirrored glass envelope that simultaneously reflects and contains the lush surrounding and the bedrooms are underground and built with clay and rammed earth in relation to the topography. The three areas have a screen that was designed to adapt according to different spatial connections and structural possibilities: floor, permeable floor, screen wall, and structural wall, and as a semi-open wall that allows ventilation and sunlight bathing the interior spaces.