Sloan Ritchie, the same developer that brought us the beautiful, green Alley House, just launched a new endeavor called Backyard Box.  As the name indicates, the Seattle-based company helps homeowners add extra space — whether for an office, studio, mother-in-law apartment, or income property — to lots with room and flexible zoning.  Backyard Boxes, commonly referred to as accessory dwelling units, come in three sizes, three finish packages, and have a Smart Box option, which includes some geeky green technology. 


The Smart Box option includes solar photovoltaics, solar hot water panels, and an energy monitoring dashboard.  Yet all Backyard Boxes will be built with rainscreen siding, an efficient lighting package, SIP framing, and non-toxic finishes. 

With the design help of Certified Passive House Consultant Jim Burton, each box will be built to Passive House standards to provide a massive reduction in heating energy costs and corresponding increase in thermal comfort for purchasers. 

The smallest model, the Match Box, is a studio with 400 square-feet of space.  The middle model, Sand Box, has one bedroom and one bathroom in 600 square-feet.  And the biggest model, Big Box, has a master suite and 800-square feet of space on two levels.  These homes start at $79,000. 

[+] Learn more about Backyard Box



Rendering credits: Backyard Box.