The house book has little direct relationship with the public security.

Some governments collect the public security first, and some governments collect the public security after the house is handed over.

Read the house purchase contract carefully when the specific house price is paid.

Generally, the housing loan is issued within 18 months after the house is handed over.

And it also depends on whether you want a loan or full payment.

If you take a loan, you have to wait until the loan is repaid before you can go to the bank to get the house principal.