Some of the appealing qualities of living in tiny houses are related to environmental concerns and eco-friendliness. Homeowners of a tiny house feel they are making a positive contribution to the world because it leaves a lighter carbon footprint.

With limited space, it can also be part of living a simpler life with a dramatic downsizing of clothing, housewares, furniture, and other possessions. It is less to clean and maintain and has lower housing payments and utility bills.

The reasons for the popularity of tiny homes are affordability and that they satisfy young people's need for mobility. They can be easily sold or rented.

Whether tiny houses will continue in the future depends on the economy. If the middle class continues to shrink, small...