However, if you want to build a luxury or customized house, you can expect costs to jump up to $500 or more per square foot. That means an 800-square-foot home could cost $400,000 or more ...

although her neighbor's 120-square-foot tiny house cost $21,200 to build. She told Margaret Heidenry of Realtor.com she spent $7,800 on materials alone but saved on labor costs because her husband ...