Legal analysis: houses with outstanding loans can be purchased. Property buyers continue to repay the bank and need to go to the bank for repayment procedures. Houses that have not paid off their loans are still mortgaged and generally cannot be listed and traded.

Legal basis: Article 209 of the Civil Code of People's Republic of China (PRC) establishes, changes, transfers and extinguishes the real right of immovable property, which will take effect after being registered according to law; Without registration, it will not take effect, except as otherwise provided by law. Natural resources owned by the state according to law may not be registered.