According to the website: The cottages will be sold as both blueprints and materials packages. The packages, which will cost approximately $55 sq ft will include all materials necessary to build the cottage from the foundation
plate up: studs, insulation, fixtures, electrical, plumbing and even appliances. The homeowner will only need to supply the foundation, HVAC, and a contractor to assemble.
Though maybe not your dream home in theory, hats off to an inventive low cost housing creation.