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How to calculate the area of an apartment

2025-11-13 20:12:31 Real Estate

How to calculate the area of an apartment

In recent years, as the real estate market continues to heat up, home buyers have paid more and more attention to the calculation method of apartment area. The area inside the house is directly related to the actual usable space of the house and the cost of purchasing a house, so it is important to understand how it is calculated. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the calculation method of the internal area of ​​​​an apartment, and provide structured data for reference.

1. What is the inner area?

How to calculate the area of an apartment

The area within the suite refers to the actual usable area of the house, excluding shared areas (such as stairs, elevators, corridors, etc.). It is one of the indicators that home buyers are most concerned about and directly affects the living experience and home value.

area typeContains contentDoes not contain content
Building area within the suiteThe usable area in the suite, the wall area in the suite, and the balcony area in the suitePool area
Useable area inside the suiteActual spaces such as bedrooms, living rooms, kitchens, and bathroomsWalls, balconies

2. Calculation method of inner area

According to the "Rules for Calculation of Commercial Housing Sales Area and Apportionment of Public Building Area", the calculation formula for the area within the apartment is as follows:

Calculation projectCalculation formulaDescription
Building area within the suiteUsable area in the suite + wall area in the suite + balcony building areaWall area includes shared walls and non-shared walls
Useable area inside the suiteThe sum of the area used by each functional spaceCalculated based on interior wall lines
Inner wall areaHorizontal projected area of shared walls × 1/2 + horizontal projected area of non-shared wallsA shared wall refers to a wall shared with neighbors
Balcony construction areaEnclosed balconies are calculated based on the full area, and unenclosed balconies are calculated based on 1/2 area.Policies may vary slightly from place to place

3. Analysis of recent hot cases

In the past 10 days, home buyers in many cities have sparked heated discussions over the calculation of apartment area. Here are a few typical cases:

cityCase descriptionInvolving area difference
BeijingThe internal area of a certain real estate promotion package is 80 square meters, but the actual measurement is only 72 square meters.8㎡
ShanghaiThe purchase contract does not specify how to calculate the balcony areaAbout 3-5㎡ difference
GuangzhouThe developer counts the equipment platform into the housing areaAbout 2㎡

4. How to avoid area disputes

1.Check the house purchase contract carefully: The contract should clearly indicate the specific values and calculation methods of the inner area and shared area.

2.Field measurement: When closing the house, you can ask a professional agency to measure it to confirm whether the actual area is consistent with the contract.

3.Understand local policies: Different cities may have different regulations on the area calculation of special structures such as balconies and bay windows.

4.Keep evidence: Save all promotional materials provided by the developer as a basis for rights protection.

5. Expert advice

Real estate experts remind that buyers should pay special attention to the following points before signing a contract:

Things to noteDetailed description
Area difference processingThe contract should stipulate the handling method when the area error exceeds 3%.
Conceptual distinctionClearly distinguish between building area, apartment area and usable area
Measuring mechanismA qualified measuring agency should be specified in the contract

From the above analysis, it can be seen that it is crucial for home buyers to understand the calculation method of the apartment area. Recent cases of area disputes in many cities have also warned us that we must remain vigilant and safeguard our own rights and interests during the home purchase process. I hope the structured data and detailed analysis in this article can help you better understand how the area of ​​an apartment is calculated and make a wise purchase decision.

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