A little space can go a long way—and in this case, a tiny house under 500 square feet that fits a family of six.Constructed by Barcelona-based studio In-Tenta Design, this mobile home model called Tenzo (meaning “masters of ceremonies” in Japanese) is available for purchase. Thanks to its smart design, the Tenzo has three bedrooms, two bathrooms, a rather large living room, and kitchen all compacted into a 430-square-foot tiny house.