The public housing maintenance fund is used for large and medium-sized repairs and renovation projects of the main structure, public parts and public facilities and equipment after the expiration of the housing warranty period. Housing maintenance fund actually includes housing public facilities special fund and housing maintenance fund.

The principal is jointly raised by the selling unit and the purchasing unit, and the ownership belongs to the payer. Interest is used for the maintenance of public parts and facilities of residential buildings. When the interest is insufficient, it shall be shared by the property owner.

Moreover, the principle of "money goes with the house" is implemented for the special maintenance funds of the house. When the house is transferred, the remaining funds in the account are also transferred to the new owner of the house.