Abstract
Currently, the enhancement of the surrounding house prices and land value by underground construction of urban sewage treatment plants (USTP) is mainly limited to the qualitative level, lacking quantitative evaluation methods. Analysing the impacts of USTP on the surrounding housing prices, an above-ground sewage treatment plant (ASTP) and a USTP in Beijing are considered research objects, with the housing price data collected and processed utilising geographic information and big data technology. Using the difference-in-difference (DID) model, the impact of urban sewage treatment plants (STP) on the surrounding housing prices is quantitatively analysed. Analysing the differences in house prices, growth volume and growth rate before and after the underground construction of urban STPs makes it clear that the USTP has a positive promoting effect on the surrounding house prices within 0–1 km; however, ASTP negatively inhibits house prices of the same size. Given the ASTP inhibition, analysis of reconstruction in the underground mode on the surrounding housing prices and the value of the released land resources makes it clear that its economic value is much greater than the investment in itself and the operating costs. In addition, it was verified that the underground reconstruction of ASTPs in large cities could significantly improve the economic value of the surrounding areas.
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