In terms of the tremendous values in architecture, history and culture, historic houses are one of the essential tourism resources for modern tourists.

With the high speed development of society economy and rapid rise of the real estate market, more and more large-scale redevelopment projects have rushed into the old zone of many historic cities of China where a great lot of single historic resides buildings which are worthless on the architecture are facing the puzzle Dom to be dismantled .

Characteristics of Exterior Spaces of Chongqing Historical Residential Area;