This custom home was built for a real estate developer and no expense was spared. As part of the unique design, the first floor foundation was excavated from the existing rock face, giving the appearance that the home was growing out of the rock. The first floor perimeter walls were all formed and then shot crete concrete was sprayed at 300 PSI and then finished to create a seamless modern wall face. Piano wires were used to gauge the thickness of the concrete as it was being sprayed. All of the plumbing and electrical had to be run through conduit and was placed in its finished location between the rebar prior to the concrete being applied. Steel moment frames and frameless glass were used to maximize the highly coveted San Francisco Bay and Golden Gate Bridge views and to allow light to flood the home.