"The first time I saw a tiny home, they looked like little hobbit houses," Vien-Goetz says. She started designing her home with that in mind, with circular windows and a streamlined layout on graph paper. "I can't even remember how many of those I must have made," she says. "I thought I was drawing an 8 x 20 sized house, but I eventually realized I was drawing 8 x 18. So it was like, oh, okay, we’ll just go with that."