[1] Univ Cambridge, Dept Land Econ, Cambridge CB3 9EP, England
[2] Hong Kong Polytech Univ, Dept Bldg & Real Estate, Hong Kong 518000, Peoples R China
[3] Hong Kong Polytech Univ, Res Inst Sustainable Urban Dev, Hong Kong 518000, Peoples R China
[4] Univ Cambridge, Dept Architecture, Cambridge CB2 1PX, England