If the pre-sale of the pre-sale permit for commercial housing or the pre-sale of existing houses is obtained after September +0, 2065438, the amount of the first-phase special maintenance fund paid by the owners of commercial housing and non-residential housing shall be 5% of the average cost per square meter of residential construction and installation projects, that is, the multi-storey commercial housing (with 8 floors or less) is 50 yuan/square meter; High-rise (floors higher than or equal to 9 floors) is 60 yuan/m2; Underground garage 75 yuan/m2. For example, the whole building16th floor is high, and the maintenance fund of each floor is paid according to 60 yuan/m2; The whole building is eight stories high, and the maintenance fund of each floor is paid according to 50 yuan /m2. Specific or according to the provisions of the local housing authority.