In Cachagua, the central coast of Chile, on a eucalyptus and pine forest is located the del Bosque, a design study F3 Architect . This is a weekend house that has an excellent relationship with the exterior and which were used materials from the site. In the development of this project was considered a program with spaces multifunctional, contemplating the relationship with the outside of all rooms, both private and common, and disrupting the concept of primary or secondary access. In their desire to minimize intervention in the field , is that the site was developed for the upper surface of the slope, and at the same time seeks to reduce tree removal, and this is achieved by integrating the terraces to the topography the place. The terraces offer different possibilities of view, privacy and sunlight, while allowing multiple and simultaneous activities for adults and children. In the construction of this house have used some elements and materials appellants on this site to site, seeks to rescue this historic image of the traditional buildings of the resort. Some features of the del Bosque: among the predominant materials used impregnated pine, steel, carpentry of wood , and stone. The ground surface is 5000 m2 with a constructed area of 110 m2 useful, in addition to 50 m2 of terraces, the house has a capacity for 10 people in three bedrooms.