Architect Tom Kundig’s kinetic buildings commune with their surroundings through custom-made hardware and flexible design elements. For a 2011 Seattle residence he designed overlooking Puget Sound, his approach included a folded gate latch, gently curved banister, and a protective metal canopy. “We kept the house simple, but we did spring for the metalwork,” says the resident. Steel is a natural choice for important elements in Kundig’s structures. “Its strength and durability give me freedom to see those parts sculpturally,” he says.