CALIFORNIA

Front outdoor space

New rear addition

Caterpillar House

Located in California’s Sugar Bowl neighborhood, this shadowy lair by Mork-Ulnes Architects looks like something out of fairy tale. "We call the house Troll Hus, with a reference to the otherworldly beings in Norse mythology and Scandinavian folklore that are said to dwell in remote mountains," architect Casper Mork-Ulnes says.

Ed Caldwell Photography

Architect George Bradley and his husband, Eddie Baba, renovated a 1941 house in San Francisco. A painting by Richard Wright and a sofa by Paolo Piva for B&B Italia dominate the family room.

For Gabriel Ramirez and his partner Sarah Mason Williams, following the Sea Ranch rules—local covenants guide new designs—didn’t mean slipping into Sea Ranch clichés. The architects love Cor-Ten steel, with its ruddy and almost organic surface, and they made it the main exterior material, along with board-formed concrete and ipe wood. The Cor-Ten, which quickly turned an autumnal rust in the sea air, and the concrete, with its grain and crannies, mean the house isn’t a pristine box, Ramirez says. His Neutra house “was very crisp and clean,” he says. “This house is more distressed, more wabi-sabi.”