In 1931 Secundino Zuazo designs the Casa de las Flores (house of flowers), a city block in the Gaztambide neighborhood in Madrid, with 288 dwellings in 5 storey blocks. It is a project quite similar to the Habitations a Bon Marché in France during the same period, or some projects in Germany and Austria that also intend to open the courtyards towards the city to improve ventilation. But here there are also smaller courts supplementing the large central one, as no dwelling opens simultaneously to the large courtyard and the street.

The building, damaged during the civil war, was restored during the 1940s and declared National Monument after Franco’s Death