A single-family house in a traditional suburb on the outskirts of Valdemoro, Madrid, is located on a 15 x 21 meter lot, in a corner with two street facades.
The site is enclosed by walls, like a box open to the sky. In the center, a white prism is placed with a rectangular base of 8 x 14 meters.
This container has a central double-height space that is diagonally crossed by the convergence of the Light; a vertical light that enters through a skylight in the ceiling that extends from one side to the other, and a low horizontal light that enters through a large window that also extends from one side to the other.
Through Light and Proportion, a small and simple closed house, turns into a large and open house, where, almost without anything, everything is possible. "Une boîte à miracles", a miraculous box.