Research on the pre-planning of “Planning, Spatial and Calculation” integrated development mode of urban renewal projects

China has entered a period of urban development that emphasizes both existing and new stock. Building a sustainable urban renewal and development model is of great significance for unleashing investment and consumption potential. The “Planning , Spatial and Calculation” integrated development model applies the concept of coordinated planning of industrial planning, spatial planning and economic calculation. Through the mutual adjustment of industrial, spatial calculation and financial investment accounting, it promotes the economic balance of urban renewal projects and provides new ideas for opening up the entry path of social capital and industrial resources and achieving project-driven development of the area. Based on years of local practical exploration, this article deeply explores the associated integration model of “industry - space - economy” in urban renewal projects, innovatively proposes the “economic layer” of urban renewal projects, systematically sorts out the asset composition of urban renewal areas, and more systematically and comprehensively discovers the existing value of renewal projects. Taking the urban renewal project plan of Zhongshan Third Road in Yuzhong District, Chongqing City as an example, the thinking framework, method path and key contents of the pre-planning of the “planning, design and calculation” integrated development model for urban area renewal were constructed.