20%-30%.

Real estate certificate (PremisesPermit) is a document that the buyer obtains the legal ownership of the house through a transaction and can exercise the rights to possess, use, benefit from and dispose of the purchased house in accordance with the law. That is, the "House Ownership Certificate" is the legal certificate for the state to protect the ownership of the house in accordance with the law. Home owner credentials manage and use their own home. The real estate certificate includes the house ownership certificate and the house ownership certificate. In a normal sense, the real estate certificate is the abbreviation of the house ownership certificate. It is a written certificate issued by the real estate registration authority to prove the ownership of the house.