What area is the property management fee calculated according to?

1, and the property management fee is calculated according to the property area;

2. The property right area is the exclusive part of the owner (all the places that can be used indoors)+the common part of the owner (such as the legal common parts such as aisles, walls and roofs) = the property right part (the area on the property right certificate);

3. Some development units promised to the owners, such as the balcony area. The developer has calculated the property area when selling, and the balcony is generally given according to half the area;