Legal analysis: the charging standards of public maintenance funds are 90 yuan /m2 for high-rise buildings (including multi-storey buildings with elevators) and 50 yuan /m2 for multi-storey buildings (including villas) (the standards of housing maintenance funds in different places are linked to the economic level, and the specific charging standards are slightly different); Under normal circumstances, the maintenance funds are established under the unified supervision of the real estate management department where the property is located, and the property management company or management unit applies for withdrawal.

Legal basis: Article 6 * * * of the Administrative Measures for Maintenance Funds of Facilities and Equipment Used in Residential Areas comes from two parts: 1. The sales unit is extracted from the sales price according to a certain proportion. In principle, multi-storey houses should not be less than 20% of the sales price, and high-rise houses should not be less than 30% of the sales price. This part of the funds belongs to the selling unit. 2. Property buyers shall pay the maintenance fund to the selling unit according to the proportion of 2% of the purchase price. The maintenance fund collected by the selling unit belongs to all owners and is not included in the residential sales income. The specific measures for the management and use of the after-sales maintenance fund of public housing shall be jointly formulated by the municipal and county financial departments and the real estate administrative departments, and implemented after being reported to the local people's government for approval.