Allies Farmhouse is a renovation of structures on a former military base that was used by the United States Air Force 381st Bombardment Group during World War II when it was known as airbase RAF Ridgewell. Farmers James and Claudia Grey enlisted Cameron Scott from Timber Design to transform the single-story public building and the one-and-a-half story housing area into a sustainable home on their farm. Doors and windows are from Rationel doors and windows.
The first spec home in the Pacific Northwest to meet Passivhaus standards is in the Columbia Station green micro-community built by the award-winning design+build boutique firm, Dwell Development. Passivhaus is an energy standard that is more difficult to achieve than LEED with respect to energy efficiency. Homes that meet the Passivhaus standard must reach thermal comfort levels by postheating or postcooling fresh air without necessitating recirculation.