The Tumbaco Valley: Tumbaco Valley has become a highly developed residential zone, achieving in recent years a significant population growth. The vast majority of people who inhabit the valley work in the city, which has meant that this area is being transformed into a small dormitory town. This resulting in: long journeys, vehicular congestion, pollution and an extended development, lacking services and equipment. The project emerges from the interest of a group of people to attack this problem. Thus, a mixed-use building (offices and housing) is proposed, promoting certain concepts: work close to home, work and live in contact with nature, and consolidation of the city.