How to calculate the area of the concave balcony in the 2003 construction area calculation rules?

If the balcony is sealed, it is calculated according to the full area, and if it is not sealed, it is calculated according to the half area.

1. For unenclosed balconies of residences that meet the following standards, the construction area shall be calculated according to half of the horizontal projection of the enclosure structure. If exceeded, the excess part is calculated as the entire floor area. Enclosed balconies are counted for the total floor area regardless of whether they meet the following criteria. >>>More

If the developer's housing delivery standard is an open balcony, then half of the actual area of this balcony is calculated as the floor area of the house. If the delivery standard is a closed balcony, the actual area of the balcony is fully included in the construction area. Most of the developers in the promotion advertisements or sales managers use the slogan of "all the balcony is free of charge", and the national construction area calculation rule is that "half of the actual area of the balcony is included in the construction area of the house", and the developer does not give it a gift.

What shape does it have? Using the integral method, divide the balcony into many pieces, find each piece (which can be regarded as the area of a rectangle) and add them together, the smaller the divide, the smaller the difference between the calculated value and the actual value.

In the past, it was counted as 1 2 construction area, and now it may be counted as 1:1, and the current balconies are relative to the wall, all according to 1:1.