The Small House Book In 2008, a used house in the U.S. averaged $244,000. That is far more than the average American can afford. Jay Shafer shatters the myth that affordable housing needs to be cheap. In his book, Jay reveals the ugly truth about residential planning and the needless overbuilding that is, in part, to blame for today's mortgage crisis. Did you know that you can't build a house as tiny as the one Jay lives in? That is, unless you know the loopholes! He's done the research, and shares it with you. You'll learn why it is necessary to build on wheels, and see the process of attaching a house to a trailer with step-by-step instructions and pictures. Jay Shafer, the author, personally built a dozen tiny houses and lived in 3 different ones. He is recognized as a leader in the Small House Movement.