Housing shortage is a serious problem in many parts of the world, especially like Tokyo, HongKong, Shanghai those large cities in Asia. Due to the reality, many people are forced to live in terrible condition or pay high rents. To ease Hong Kong’s affordable housing problems, a Hong Kong-based studio James Law Cybertecture try to develop affordable micro-housing in 2.5m diameter concrete water pipe. The design utilizes the strong concrete structure to house a mirco-living apartment for one/two persons with fully kitted out living, cooking and bathroom spaces inside 100 sq.ft.