Bath Room, Wall Mount Sink, and Concrete Floor An airtight building envelop helps naturally insulate the structure. The appliances in the house are energy-efficient, and use greywater recycling.  Photo 10 of 28 in 360 72nd by Anita Williamson from The World's First Carbon-Positive Prefab House

360 72nd

10 of 28

An airtight building envelop helps naturally insulate the structure. The appliances in the house are energy-efficient, and use greywater recycling.