Southeast of Monterrey city, on the slope of the “mirador” hill is located the house 55+21.  The ground is oriented with the back facade to the north having as main scenario the city and the mountains. The project was planned beginning from a central axis represented by a triple-height wall that divides the house in two parts ending up at the south side with a small interior-external patio and with a large window framing the visuals at the other side. The wall has a subtle rotation to generate a wider visual angle and to separate circulation from social areas.

The entrance hall and social areas were integrated with the stair to generate a greater depth of field.By using half-levels a separation was made between living and dining room, which share a same space in double height.  The main facade is interrupted by a vertical opening that emphasizes the verticality of the central wall, which is crossed by a natural concrete horizontal element.