Generally, if you are single, you need the original ID card of the household registration book. If you are married, you need all the documents of your other half. If it is a simple one-time payment, you can get the housing register 20 days after signing the contract with the Housing Authority. If it is a loan, more procedures are needed. First of all, you need to sign in the Housing Authority once, and you need to bring your ID card and household registration book. After you have difficulties, you can go to the bank for a face-to-face interview with the down payment. After the face-to-face signing of the bank, get the bank receipt and then sign it at the Housing Authority. At this time, the Housing Authority will transfer the money on your bank card to their names for fund supervision. After 20 days, the seller takes the money and the buyer takes the house book.