The house divides a small pasture from protected upland forest on a 100 acre wooded hillside overlooking the Grand River. South facing glazing and cantilevered balconies are shaded by the large roof, allowing passive solar winter heat gain and long views across the river valley. Pools for bathing and reflection surround the house, and rough ‘barn concrete’ expresses the native cobble aggregate. Sustainable design which incorporates photovoltaics and a ground source heat system allow a net energy gain for the project.