This ground-up residence located in the Cow Hollow neighborhood of San Francisco is organized with an upper living level, a middle bedroom level, and a lower level containing an in-law unit and garage. The light exterior material palette responds to the diffused natural lighting condition that exists in this part of the city. The board-formed concrete base creates a plinth for the upper levels to rest upon. Given that the overall massing is well below the allowable height limit, this affords the opportunity to create a north clearstory window and a more volumous space at the upper level. The rear yard and garden is composed to bring natural light down to the in-law unit, while a roof deck provides panoramic views of the city and Golden Gate Bridge.