This competition-winning design for downtown Berkeley builds upon the inherent richness in the combination of affordable housing, environmental education, and a venue for the intersection of art and ecology. Named after the Sierra Club's first executive director, David Brower, the project houses 96 apartments, public education space, a restaurant, underground parking, and 50,000 SF of office and educational space for environmental non-profits. A dramatic public rotunda provides daylight and natural ventilation for the various commercial uses. The proposed platinum LEED rating is based on environmental technologies and architectural elements related to siting, daylighting, natural ventilation, structure, photovoltaic power generation, and solar hot water.