Peter’s House is a project located in San Francisco, California, USA. It was designed by Craig Steely Architecture, and has a terrace which overlooks the city. Located above San Francisco’s Dolores Park on a steep site bordering a public garden, the decidedly small house, (only 1800 square feet) builds on this steep lot as efficiently as possible. Rather than the typical construction practice of locating foundations staggered up the hillside, Peter’s house locates a 24 ft. x 24 ft. cast-in-place concrete garage at the lowest level and builds a 3-story glass tower above it, altering the land and native hillside drainage very little. The top living floor then spans from a flat plateau at top of the lot to the tower like a bridge, essentially reducing the amount of excavation typically involved in construction of this type by 2/3.