Coronado ADU

Designed as a response to Phoenix’s growing need for flexible housing, the Sun Block ADU takes a straightforward approach to material, space, and construction. Constructed Matter built the prototype for its architect-owner, bringing a minimalist modern design to life through a palette of exposed insulated concrete block, polished concrete floors, and exposed wood ceilings and beams. Rather than covering up the structure, the project allows its materials to define the space. The CMU block remains exposed as both finish and architecture, while the wood ceiling and beams add warmth and contrast to the clean, minimal interior. The result is a compact dwelling that feels deliberate and substantial without relying on unnecessary finishes or ornament. The project was also selected as one of the winners of the City of Phoenix and AIA Phoenix Metro ADU Design Competition, an initiative focused on practical, adaptable ADU designs for Phoenix neighborhoods. The design has since been developed as part of the City’s standard-plan program, creating an opportunity for the approach to be replicated beyond the original prototype.