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In the calculation of the floor area, the calculation of the outer cut-off points such as balconies and bay windows is 50% multiplied by the coefficient of 50% of the usable area of the normal room
Built-in balconies, the full area is calculated as "floor area"; >>>More
According to the construction area calculation specification GB-T50353-2013, the balcony in the main structure shall be calculated according to the horizontal area of the outer part of the structure, and the balcony outside the main structure shall be calculated according to the horizontal projection area of the structural floor 1 2 area. >>>More
Announcement of the Ministry of Construction of the People's Republic of China. >>>More
The balcony is half of the floor area, and the room is complete. Hope it helps!
Usually these things will be written in the purchase contract, such as giving away a balcony and the like. If it is not written, of course it will be counted in the building area.