This house was designed for a sloped site in the mountains west of Colorado Springs. It combines two historically significant house types: the 1920s houses in which the fillet became a signature feature of the Modern plan and Mike Reynolds’ 1970s Earthship. Similar to its Modern predecessors, the house’s curved form creates continuity between otherwise disparate spaces. However, the plan’s fillets are not limited to round corners. They make up most of each room’s figure, which are often arranged in nearly symmetrical pairs.
Like other Earthships, the house generates more energy than it consumes. Its internal temperature is primarily regulated by passive solar heat, the thermal mass of the surrounding earth, and natural ventilation. But its geometry is distinct. Earthships are commonly built with curves. Because of their origin in the ecology movement, they’ve tended toward the organic. This house’s Modern influence shifts the Earthhouse sensibility from natural to cultural.