Tucson Casita and Casita One/Two are accessory dwelling units (ADUs) designed to balance simple forms with a richness of material, space, and light. Both have a spacious one-bedroom plan and a porch. They are energy-efficient, easy-to-build, and adaptable to a variety of sites. The designs are pre-approved for Tucson and are available through the City’s Casita Model Plan Library. For more information: www.tucsoncasita.com and www.casitaonetwo.com.