Legal analysis: real estate mortgage can't be used to buy a house. Banks strictly monitor the flow of funds in post-loan management, strictly restrict the loan funds from entering the real estate market, and immediately recover the funds once the banks find out. In order to prevent real estate speculators from lending real estate and driving up housing prices, loan funds are not allowed to enter the real estate market.

Legal basis: Article 36 of the Measures for the Administration of Urban Real Estate Mortgage, the mortgaged real estate is owned and managed by the mortgagor. The mortgagor shall maintain the safety and integrity of the mortgaged real estate during the possession and management of the mortgaged real estate. The mortgagee has the right to supervise and inspect the management of mortgaged real estate in accordance with the provisions of the mortgage contract.