James Law, an architect, inside a prototype of a "tube home." James Law Cybertecture

For the past seven years, Hong Kong has held the title of the world's priciest city for homebuyers, according to the Demographia International Housing Affordability Survey.

James Law, a Hong Kong-based architect, thinks his micro-homes could help alleviate the city's housing crisis. But his tiny-home designs are anything but typical - they are concrete water pipes outfitted with all the amenities of a modern home.

Law explains more about his "tube home" design below.