Ⅰ.Introduction Since the start of the program in 1990,Beijing＇s Oldand Dilapidated Housing Renewal has received considera-ble attention from all areas of society-from government of-ficials and professionals as well as ordinary citizens.The re-newal program has not only exerted a major impact on theold city areas of Beijing like the demolition of the old CityWall and the Pai Lou(Memorial Archways),but has alsobeen a sensitive issue related to housing problems whichmay affect hundreds of thousands of residents both in theold city and in other parts of Beijing.Furthermore,the pres-ervation of architectural relics and the historic core of Beij-ing Old City is now receiving more and more attention.Asa result,research on Beijing＇s housing renewal program in-volves a broad range of issues covering city development,housing construction and Old City preservation. The work of our group has involved lookingcomprehensively at all aspects of residential area renewal inold city areas-the economic,social and enviro I.Introduction since the start of the program in 1990,Beijing’s Oldand Dilapidated Housing Renewal has received considera-ble attention from all areas of society-from government of-ficials and professional as well as ordinary citizens.The re-newal program has Not only exerted a major impact on the old city areas of Beijing like the demolition of the old CityWall and the Pai Lou(Memorial Archways), but has alsobeen a sensitive issue related to housing problems whichmay affect hundreds of thousands of residents both in theold city and In other parts of Beijing.Furthermore,the pres-ervation of architectural relics and the historic core of Beij-ing Old City is now receiving more and more attention.Asa result,research on Beijing’s housing renewal program in-volves a broad range Of issues covering city development, housing construction and Old City preservation. The work of our group has participating lookingcomprehensively at all aspects of residential area renewal inold city areas-the econo Mic, social and enviro