This 900 square foot off­grid retreat, situated on the family's cattle farm in Appalachian Ohio, blends old and new technologies to create a self­sustaining home. South facing glazing in the living room provides views across a seven acre lake, and is also integral to the passive solar design which generates heat when coupled with the concrete finish floors. Additional sustainable features include a fresh water cistern supplied by a natural spring that runs along the building site; electricity generated by a solar cell array; and spray foam insulated walls and ceilings. The exterior is clad with a Corten metal standing seam roof and burnt cedar siding with Douglas fir columns. The interior layout features two bedrooms and a single bath, along with a great room and kitchen.