How to calculate the rental area into the construction area?

The general rental area is the usable area, and the construction area is equal to the usable area multiplied by the ratio of usable area to construction area. The proportion of multi-storey buildings is generally 75%, and the current high-rise buildings are generally 65%.

If the family housing is public housing, the construction area of high-rise and multi-storey complete housing shall be calculated by multiplying the rental area by 1.3; The construction area of bungalows and non-complete houses is calculated by multiplying the rental area by 1. 15.

Expanding data The significance of people's measurement of building area mainly considers the following aspects:

1, human beings need to build various activities or living places to meet the needs of social development, which is also one of the accumulation forms of social material wealth, also known as buildings, so it is an important economic indicator to evaluate national economic construction and people's material life.

2. It is an important basis for technical and economic analysis in the stage of planning and investment decision-making of construction projects, and it is also one of the bases for selecting budget indicators when preparing the preliminary design budget of projects.

3. It is an important technical index of the planning conditions of the construction project approved by the competent department of city planning administration, and it is also an important basis for the preliminary engineering investigation and construction drawing design of the project.

4. The basic data of the project budget and partial engineering quantity calculation is also the basis of calculating the technical and economic indicators such as project cost, engineering quantity and material consumption per unit construction area.

5. It is one of the basic data of transaction, lease, mortgage, tax collection, property service fee payment and heating fee payment in buildings.

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