Bill Mackey extended the rear of his Tucson, Ariz., house along one side of his property and created a small, but efficient side yard in the process. The new volume offers shade from the afternoon sun, and a large overhang provides cover for the patio and fire pit.
The home features an aluminum and spruce/fir (depending on orientation) rainscreen, as well as solar hot water and recycled cotton insulation. Photovoltaics will be added in the future.
Mackey used 8-foot-by-10-foot sliders and large aluminum casement windows to extend the public areas and preserve landscape views.