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gher and higher price in house property. Therefore, investment in house property bees their best choice to counter inflation. Secondly is the constant emergence of new prime sites. What needs to be noted is that this round of prime lot quotation is different from that in 2021 in that in 2021, those prime sites are mostly invested by HK or domestic privateowned enterprises, while in this year, they mostly fall into the stateowned enterprises. These stateowned enterprises do not even blink eyes even when they pay twice or three times of the transaction prices. Because land price is the main cost of housing prices, so whenever there appears a prime site, the housing prices in there are surging. For example, in July, 23rd, 2021, Jindi Groups got the prime site named Qingpuzhaogang in the Urban area of Shanghai with 14495 yuan per square meter, with housing prices in the Urban Shanghai swiftly surging. In Jiading, the housing prices per square meter exceeded 10 thousand yuan for the first time, while in Jinshan, it surged by %. Thirdly is the encouragement and support of local government. Because the land grant fee is a big financial resource of local governments, so governments in all places all want a constant rise of real estate which can result in a rise in land price. For this purpose, governments would advertise Urban Residential Area in Green 15 that their house properties belong to value lowlying land in different versions while the local governments would not carefully carry them out with various reasons and means. When the central government launches marketrescue policies, local government would always take measures first to launch some looser and more active marketrescue encouragement measures. All these make housing market investors gain confidence. Fourthly are the loose credit behaviors of mercial banks. In 2021, preferential credit policies of the central banks were originally given to consumers who wanted to purchase houses, but against the backdrop of rich mobility, mercial banks are scrambling for edge balls for striving for this excellent asset, which would grant investors of housing a down payment of 20% and privileges of discount in interest, those two sets of consumers are no exceptions. Many investors purchase houses with relatively little money and these investors control the main gist of real estate market who do everything to make real market investment more and more prosperous with the housing prices higher and higher. The abovesaid factors are interrelated and interperated, which forms a thick chain of housing investment with one link connecting with another, making mercial houses being consumables of the masses transfer to investment of the minority of people. If this tendency is to sprawl, the consequences will be extremely serious. Property of sustainable development of evaluation system According to the pleteness, practicability, correlation and forwardlooking, create the principle of bining urban real estate industry Urban Residential Area in Green 16 sustainable development evaluation index system. It includes economic evaluation factors, population evaluation factors, social evaluation factors, resource evaluation factors and environmental evaluation factors from five aspects. Among them, the economic evaluation factors including per capita GDP, urban residents39。 etc. Resource utilization of index system (including water, land, forest, mineral, energy, and prehensive utilization twolevel index)。 System with science and education index system (including science and education investment, science and technology development degree, science and output and system for twolevel index), the real estate industry sustainable development provides evaluations. And introduced the use of analytic hierarchy process (AHP) real estate industry sustainable development level assessment method. Anyhow, scholars created real estate industry sustainable development evaluation index system, this paper introduces the level of the sustainable development of real estate industry assessment method. For the sustainable development of real estate appraisal system established the foundation. In my opinion, to establish the system of sustainable development of real estate industry must be from many aspects, whether in government, developers or buyers all should with relevant principles as guidance, to establish real estate sustainable development system. About sustainable development of real estate solution methods and countermeasures. Urban Residential Area in Green 18 Push the real estate industry sustainable development needs three aspects. One is to internalize the externality, drive market main。 Population and society index system (population, employment, people39。 Population evaluation factors include urban population density, urban population growth rate。s real estate developing problems mainly displays in: first, develop out of control, cause disorder development of land resources squandered and the loss of stateowned assets, The second overall, structural distortions in supply and demand and caused a lot of vacancy, The third estate development of large shortterm, on the ecological environment enormous destruction。s broad consensus. Sustainable development Urban Residential Area in Green 10 refers to satisfy the requirement of modern and does not damage the ability of future generations to meet demand. The real estate industry sustainable development consists of two party of meanings: one refers to the real estate industry development should not only meet the people of various real estate product demand and to meet the needs of the development of future generations. Among them, including the sustainable utilization of land resources, the stability of the housing industry coordinated develo