Tiny homes are exotic to many of us, but they are extraordinarily functional as a reprieve from the busy neighborhoods of Tokyo.

As I discuss in my book, "The Hyperlocalization of Architecture," the secret to these Japanese tiny houses is not only the imaginative designs, influenced by centuries-old traditions, but also how they are connected to walkable neighborhoods.

By embracing the public realm as an extended living space, with local restaurants, parks, public transportation, and other amenities, the need for private space is reduced.

Since privacy has not historically been a design priority in Japan, architects have freedom to open up small spaces, designing interiors that are visually, functionally, and psychologically larger than they seem.

The future of civilization is well-designed cities, and the future of cities is well-designed small living spaces.