This single-family home is designed to be as sustainable as possible, utilizing passive solar design, Structural Insulated Panels (SIPs) with a recycled wheat-chaff core, vegetated roofing, photovoltaic and solar-thermal panels, and natural materials.High clerestory windows bring light throughout the main living spaces, which are arranged along a East-West axis. Spaces are open to one another but defined by changes in level, ceiling planes, and columns.