Sustainable living has found a new direction with the coming of the expandable houses. Unlike traditional homes, which often require many resources to build and have a lengthy construction period, expandable houses are intended to be simple and have the least impact on the environment. They employ green practices and smart technologies that make construction and maintenance less power consumptive. It is not only good for the nature, but helps the homeowners who want affordable flexibility in their living arrangement, which at the present, is in high demand worldwide.