Legal analysis: mortgage requires real estate license, and mortgage itself is a kind of loan based on the purchased house. After the mortgage, the property will be mortgaged to the lending institution, and the real estate license will be detained by the lending institution. After the borrower pays off the debt, the mortgaged property can be released.

Legal basis: Measures of China People's Bank for the Administration of Individual Housing Loans.

Article 1 In order to support urban residents to purchase ordinary houses for their own use, standardize the management of individual housing loans, and safeguard the legitimate rights and interests of both borrowers and lenders, these Measures are formulated in accordance with the Law of People's Republic of China (PRC) City Commercial Bank, the Law of People's Republic of China (PRC) on Guarantee and the General Principles of Loans.

Article 2 Individual housing loans (hereinafter referred to as loans) refer to loans granted by lenders to borrowers for purchasing ordinary housing for their own use. When a lender issues a personal housing loan, the borrower must provide a guarantee. If the borrower fails to repay the due principal and interest of the loan, the lender has the right to dispose of its collateral or pledge according to law, or the guarantor shall bear joint and several liability for repaying the principal and interest.

Article 3 These Measures shall be implemented after being approved by the People's Bank of China.