Emerging New Model of Urban Residential Historical Built-up Area Renewal in China：Five Practice of Urban Renewal in Shenzhen,Guangzhou and Shanghai
China's urban development need to seek a new path, with the putting forward of inventory planning and the deepening understanding of heritage. In this context, a number of cities begin to explore new models of urban development based on the requirements of heritage protection and the demand of old district transformation. The problem is, are these new models balanced, harmonized and sustainable？ Shenzhen,Guangzhou and Shanghai are all in the transition after the rapid urban development. "Urban village" in Shenzhen is a kind of old residential area derive from village bypassed by urbanization due to high cost. "The historic and cultural blocks" in Guangzhou face the dilemma stem from the original demolition model. "Lilong house block" shaped up in modernization as a type of grouped residential buildings in Shanghai, facing the high-intensity use. These three kinds of residential historical built-up areas are in urgent need of a new round of urban renewal. Based on this background, Shuiwei village and Yutian village in Shenzhen, Yongqing Lane in Guangzhou, Chunyangli and Chengxingli in Shanghai, these five historic residential built-up areas renewal project , with the goal of heritage protection, livelihood improvement and urban development, take the new models with multi-subject participation, urban space restoration, construction retention, and new functions placement. However, its occurrence mechanism, participants, and results are different due to its own characteristics and local urban renewal laws. This paper analyzes the advantages and limitations of these five models by comparing the background, the characteristics of the objects, the target positioning, the mechanism of occurrence, the operation mode, the results and follow-up works. Then study its rationality and adaptability, hope to provide a basis for the exploration of the future renewal mode of better residential historical blocks.
urban renewal, built heritage, historic block, heritage protection