Circular homes minimize the required material and the surface through which heat is lost or gained. In normal places, there is no need to think about maximizin

Circular homes minimize the required material and the surface through which heat is lost or gained. In normal places, there is no need to think about maximizing the land usage. People typically put a 2000 square foot house on a 10000 square foot lot. For a circular home on a square lot, that is 51 feet in diameter on a 100x100 lot. Each side has more than 24 feet to spare. We really don't care too much about minimizing lot size. In most places, it isn't even legal to have a tiny lot. The excess can be trees or whatever, and most of us like it that way.