Perhaps our favorite exhibit at Greenbuild 2015 was the Net-Zero demonstration home by Unity Homes. They quoted me an incredibly affordable price to have this shipped and installed: a 3-bedroom unit ranges between $275K and $325K. Net-Zero is moving the residential market!
Gracious living space with ample passive solar gains. Very clear "served" and "servant" zones simplifies the mechanical systems design.
Super-insulated wall construction with continuous insulation thermal break. All materials are Cradle-to-Cradle certified.