Second, the total amount of old city reconstruction will be reduced. After more than 20 years of urban construction, the situation of "demolition and construction" in the transformation of old cities will gradually disappear.
Third, the quality of housing has been greatly improved. In 20 12, the then Ministry of Housing and Urban-Rural Development issued residential quality standards, which standardized the construction quality of various commercial houses such as houses and office buildings, and increased the safety standard life of commercial houses from about 30 years to at least 70 years, even 100 years. This means that after 20 10 years, all kinds of new commercial houses in the city can theoretically be used for 70~ 100 years, which means that the depreciation and transformation of the old city will be greatly reduced. Suppose a city has a housing stock of 654.38+00 billion cubic meters. According to the depreciation period of 30 years, about 30 million square meters of houses will be demolished and rebuilt every year. If the depreciation period becomes 654.38+000 years, the average number of houses rebuilt every year is only 6.5438+million square meters.
Fourth, the housing market has been basically balanced, and the per capita housing area will not increase significantly. At present, China's per capita housing area has reached 50 square meters, and the demand for housing improvement of poor families has gradually decreased. Although the demand for housing improvement will continue to exist in the future, it is only partial and structural. Generally speaking, the phenomenon of insufficient per capita housing area will gradually disappear.