This Mexican Hacienda style home is located on the banks of a canal within the desert city of Yuma. The owners had sought us out as an architect who specialized in green building design, which was central to the project. We integrated passive solar design by placing an arcade on the south façade to protect it from the southern sun. The walls were built using Apex block an insulated concrete form (ICF) manufactured locally in Phoenix, AZ. This block provides a super-insulated wall system that is resistant to fire, mold, and termites. The building plan incorporated a traditional three sided courtyard form with their swimming pool located centrally to provide passive cooling. The owners had salvaged giant timbers from a Mexican railroad bridge that we used throughout the home as well as to form clerestory windows. These high windows provide great natural ventilation. Mexican glazed tile and colored plaster walls bring a festive feel to the interior spaces.