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The relationship between urban renewal and inefficient land use can be understood as involving various activation measures, such as protection, regulation, reconstruction, redevelopment, and utilization, applied to inefficient land use to varying degrees. In the practice of urban renewal, the urban renewal planning mode that utilizes inefficient land redevelopment as a means already exists. However, the relevant concepts and connotations vary across different countries, as do the governance methods. For example, China refers to construction land with relatively low or non-conforming normal values of land use, plot ratio, building density, investment intensity, average land output, tax revenue, per capita area, urban planning function, and other factors as inefficient land. The United States, the United Kingdom, Japan and other countries refer to this type of land as brownfields. The United States defines brownfields as former industrial and commercial land and facilities that have been left idle or are no longer in use due to environmental contamination. In the United Kingdom, the relevant concept refers to land that has been developed in the past or is currently idle, abandoned, or underused. Each country has its own emphasis on the definition of inefficient land use, but the core can be summarized as follows: a piece of abandoned, idle, or underutilized land that has the potential to pollute the ecological environment, poses a certain risk of treatment or redevelopment, and can also bring economic and social benefits.
Since inefficient land still possesses economic and social benefits, this paper examines and interprets the value composition of inefficient industrial land across four dimensions: historical and cultural evolution, land value, industrial structure, and stock assets. The historical and cultural evolution dimension emphasizes the historical value and cultural significance of inefficient land use. The land value dimension focuses on the location advantage, market potential, and supporting role of land parcels in urban development. The industrial structure dimension focuses on the elimination of outdated production capacity and the introduction of high-tech industries. The stock assets dimension focuses on the activation and value enhancement of stock assets resulting from the redevelopment of inefficient land use, integrating and optimizing existing resources, and improving the efficiency of comprehensive land use.
The issue of inefficient land use in Tianjin's Nankai District is primarily characterized by three features: a scattered land use layout, idle and inefficient asset utilization, and inadequate support for urban functions. Among these, the Xiyingmen area, covering approximately 151.8 hectares. It serves as a crucial node for Tianjin in hosting high-end industrial resources and fostering scientific and technological innovation. The redevelopment value of the Xiyingmen area is assessed across four dimensions. It is found that the area possesses abundant historical and cultural value and retains a significant number of industrial relics. Secondly, there is considerable potential for optimizing land resource allocation. The intensive and efficient utilization of land resources can be achieved through functional mixing and complex spatial development. In addition, the area is situated in a region with convenient transportation and comprehensive infrastructure, making it suitable for hosting diverse modern urban functions. Moreover, the existing industrial facilities in the area provide an important spatial foundation for the establishment of science and technology research and development bases and modern service industries. Finally, based on a comprehensive assessment of the supply and demand of education, healthcare, sports, and other infrastructure within the living circle, it is found that the area has potential value for the redevelopment of public service supporting facilities. In the future, management can be optimized through planning measures such as differentiated service facility supply, appropriate increases in open space, and the establishment of an industrial development information monitoring platform.
| Keywords | Inefficient land use; Urban renewal; Redevelopment; Spatial governance |
|---|---|
| Best Congress Paper Award | Yes |
