legal ground
Notice on Further Improving the Regulation of the Real Estate Market Article 6
In principle, the purchase of 1 apartment is limited to local registered households who already own 1 apartment and non-local registered households who can provide local tax payment certificates or social insurance payment certificates for a certain number of years; For local registered households with two or more houses, non-local registered households with/kloc-0 houses, and non-local registered households that cannot provide local tax payment certificates or social insurance payment certificates for a certain number of years, it is necessary to suspend the sale of houses within their administrative areas.