It takes a village. For this four-story home in San Francisco’s Glen Park neighborhood, the owner and his design advisor, Akemi Tamaribuchi of Subject to Change, collaborated with architect Cass Calder Smith. Together, they transformed the 4,000-square-foot abode into a completely customized hangout for social gatherings and work meetings alike. The resulting spaces are punctuated by exuberant bursts of color, strong expressions of materiality, and inspiring views of—and access to—the outdoors.

In the living area, a cluster of modular sofa units and throw pillows in shades of dark blue forms a seating landscape. The large window and glass door bring in plenty of the outside, including the outdoor seating area beyond.