How to calculate the constellation of pool area _ How to calculate the percentage of pool area

How to calculate the pool? The house I bought is multi-storey, one ladder for each household?

First of all, the following are some related formulas of pool area:

Housing construction area = interior construction area+pool area

Pool area = pool coefficient × interior construction area

Allocation coefficient = public allocation total area/(interior construction area × total number of units)

Interior construction area = interior usable area+wall area

Factors affecting pool area

1. One staircase, one household, two households and three households in the same building are all different.

2. Inner area of sleeve

3. There are only stairs in public facilities, and stairs and elevators are different public facilities. The more corridors, the bigger the pool.

4. Building scale The higher the height of stairs, the larger the pool.

Share ratio of ordinary houses: multi-storey 8%- 15% small high-rise 10%-20% high-rise 15%-30%.

Generally speaking, the interior area of a house is clearly marked on the property certificate, and there are many influencing factors, so it is not necessary to calculate it separately. Just understand that different units of a building or the same unit, different floors and different units may have different pools.