On 1.45 acres at the base of Mount Tamalpais, just north of San Francisco and the iconic Golden Gate Bridge, this unprecedented five-bedroom residence—the result of years of dedication on the part of Quezada Architecture and a team of designers, engineers, and contractors—was built in 2014 and has been lovingly maintained by its sole owners. Composed of classic contemporary lines formed from oxidized steel, cedar, glass, and metal, it seems to jut forth, a dramatic extension of the land that surrounds it.