The San Juan island is all surrounded by water, but that obviously isn’t potable. Water coming from energy hungry desalination plants of course isn’t a very elegant solution, but a necessity for supply nevertheless. The Natural Balance House designed by Core Design Inc. intends to change this by harvesting water from the plentiful rainfall that the island is blessed with.
Beneath the house, the designers have made room for a 19,500 gallon cistern, which is accessible through a floor hatch in the master bedroom closet. The rainwater collected by the house’s roof flows through a filtration system and a UV disinfecting chamber to finally reach the cistern. The water thus collected is free from impurities and bacteria and is safe to drink.
The architects estimate that the roof will collect 47,000 gallons of water annually, and the house makes use of water saving fixtures and appliances to bring down average daily consumption to just 62.5 gallons. To give the structure more of an eco look, the sustainable home also includes 3,000 square feet of a green roof planted with native grasses and sedums.