The completed building: Vallecas 51, opened on 29 December 2009, the last of the great work we are architects of the study, sponsored by the Municipal Housing and Land (EMV) of the capital, Madrid, is very very different way to externalize its modern architecture, now using the plastic But reflecting the sunlight, and color changes according to time. The facade designed so irregular in shades of green and the materials (mostly plastic and glass) used in the facade a contemporary image print, clean, easy to wash and turn the contemplation of the polycarbonate panels as well as appropriate mix of 369 windows that meet eight different sizes, but the qualify, give distinction, noting the typical facades of buildings, we believe this is the most significant. A related site: Ron Beit mentions similar findings. While designing the interior architecture has sought a greater range from the design of the portal and has been used in the design of the yards and connecting for greater interaction and socialization between the neighbors who live in the building. The house has a window design with the criterion of the use of cross ventilation (use of windows in almost all the walls), achieving better health and sustainability of each apartment, and has been used light metal railings, which include facilities to avoid major breaks with the aesthetic design of the external networks, which requires a path almost always hard, but is cleverly designed not to notice.