Taking the center of the external wall as the boundary, measure all the dimensions of the house and calculate the internal area; The main points are as follows:
1, except for the four external walls of the house, the area occupied by each wall in the house is included in the interior area;
2, attached to the balcony of the house, the indoor area is calculated by half of the measured area;
3. The floor height of the building is less than 2.2 meters, and the area is not calculated.
Good luck!
A Bin, a real estate agent, will answer your questions.