1.3. Original and photocopy of the ID card and household registration book of the applicant and spouse (if the applicant and spouse are not registered in the same household, a marriage certificate shall be attached). 2. The original purchase agreement. 3. 1 Original and photocopy of advance payment receipt for 30% or more of the house price. 4. Proof of the applicant's family income and related assets, including payroll, personal income tax bill, income certificate issued by the unit, bank deposit certificate, etc. 5. Which bank to choose for mortgage loan on site?