Property fees are charged according to the construction area.

Legal analysis: Unless otherwise agreed, in general, the property management fee is charged by the owner according to the building area.

Legal basis: Article 35 of the Regulations of People's Republic of China (PRC) Municipality on Property Management, a property service enterprise shall provide corresponding services according to the stipulations of the property service contract. The realty service enterprise fails to perform the realty service contract, causing personal and property safety damage to the owner, and shall bear corresponding legal responsibilities according to law.