In her doctor's office, Williams read an article about tiny houses, fewer than 200 square feet. That's about one-fifth the size of a mobile home, but these hobbit-sized habitats are street legal ...

Can you imagine yourself living in under 500 square feet? For many, tiny living gives them the opportunity to travel, pair down their belongings and save money.

Just a few short years ago, she and her boyfriend were living full-time in a 165-square-foot micro home - tiny houses that are barely the size of a regular master bedroom.