1, real estate mortgage loans to the real estate bureau, mortgage housing loans need to be registered at the housing authority trading center. 2. The mortgage procedure of real estate is basically as follows: (1) Submit the application form and designated materials according to the instructions of the bank, notify the approval result after the bank has passed the examination and approval, and sign the loan contract. (2) The parties concerned shall handle the mortgage registration as appropriate, and the bank shall not lend money until it sees the mortgage registration certification materials. (3) Housing mortgage must be registered. Without registration, the mortgage behavior is invalid.