This house in Del Mar, California is separated into two sculptural domes and connected additional square rooms. The domes were created by filling room-size polyurethane bags with hot air, spraying approximately 3 inches of foam inside the bag and then rimming the circumference with re-bar. 3 inches of gunite concrete coats the steel and is then plastered.
One dome houses the master bedroom and bath. The other dome contains the living room, dining room, kitchen, bath, and upstairs study. The study is deliberately separated from the main part of the house and is reached via an outdoor stairway.