Under the Building America Program, production builder Winchester Homes Inc. (WHI)’s Camberley Homes subsidiary teamed with Home Innovation Research Labs through Home Innovation Research Labs Industry Partnership to design a new construction test home that uses 30% less energy than a comparable house that meets the 2009 International Energy Conservation Code. With technical guidance from Home Innovation Research Labs, the builder selected technologies, design elements, and construction methods that minimize cost while achieving 30% energy savings. Ultimately this design is a commercially viable energy efficiency solution package for the mixed-humid climate addressing both energy efficiency and costs.