The revised calculation rules of construction area not only consider the calculation habits and international practices of construction area, but also adjust the relevant contents in the Code for Residential Design and the Code for Real Estate Survey. The ultimate goal of the construction area calculation rules is to meet the needs of project cost valuation. Under normal circumstances, the size of the calculated area can be calculated according to the relevant provisions in, but the value of the building area must be measured by professional surveying and mapping institutions.
Therefore, the above is the explanation of the calculation rules of construction area. If you want to know more, you can consult this document online.