How much area is the balcony of Kecheng Jinyu Mansion?

Balcony construction area: calculated according to the current national "building area calculation rules". The common floor area of the unit apportionment consists of two parts:

The floor area of public buildings and management buildings that are functionally serving the whole building, such as elevator shafts, zhidao stairwells, garbage chutes, substation rooms, equipment rooms, special public foyers and corridors; 50 of the horizontal projection area of the partition wall between the units and the common building space of the building and the external wall (including the gable). The common construction area does not include any basement and carport that is rented or sold as an independent use space, and the basement used as a civil air defense project is not included in the common construction area.