"I'll probably live in 400 square feet of ... more than 20 times before the final plans were approved last year. The board's changes, he said, bettered the project. The house will look historic ...

However, it’s worth noting that the cost per square foot only covers the house itself. There are other costs associated with house building to plan for, such as purchasing and finishing a lot.

[Photo: Serendix] The company’s design, called Fujitsubo (“the barnacle”), is small, at 538 square feet. The average new American house is nearly ... Serendix plans to work in smaller ...