Concrete Houses: Form, Line, and PlaneRobust and raw, concrete has been a rudimentary building material for centuries, but it is only relatively recently that architects have begun exploring its softer, tactile side in the design of houses. Concrete is durable, recyclable, and thermally efficient, and it goes up quickly compared to wood or metal framing. The appeal for architects, though, is its plasticity and potential for magic, making poetry out of the mundane. Witness concrete's