<blockquote>The foundation of the house, for example, uses cantilevers, seesaw-like joists that help save wood and concrete and actually make the house stronger than a typical foundation would. But the design isn't in the usual guides that code officials consult, so the architects had to go back and explain how it worked.</blockquote>
via <a href="https://www.fastcoexist.com/3056129/this-house-costs-just-20000-but-its-nicer-than-yours">This House Costs Just $20,000—But It’s Nicer Than Yours | Co.Exist | ideas + impact</a>.