Fu-Tung Cheng, CHENG Design • Front Exterior, Del Mar House Airstream trailers and Quonset huts inspired the design for this house docked against a gentle slope near San Diego. Cheng Design pits hard-edged industrial materials — concrete block, galvanized siding, steel columns, stainless steel cable and welded I-beams — against softer residential elements, such as stained-wood siding and a grid of exposed wood framing that supports the roof. Photography: Matthew Millman