How to calculate the floor area of a house

How to calculate the floor area of a house

Floor area: all the land area occupied by the community, including corridors, gardens, and areas within the red line
The land area occupied and used by the building is calculated by the peripheral horizontal area above the plinth of the outer wall of the ground floor
There are some differences between the calculation rules and connotation of building area and building area. For example, the area of each house is 70 square meters, which is the building area or the inside area of the house, or the use area
In terms of housing area, many parts of the area calculation rules have different standards, such as whether the balcony is closed or not