Is it necessary to pay the property fee for one year?

It's not necessary. According to Article 18 of the Measures for the Implementation of Property Charge Management, without the consent of the owners and users, the one-time advance payment of property fees shall not exceed six months, and the owners shall not be charged with deposits, security deposits and other related fees for more than one year without authorization. So you don't have to pay the property fee for one year.