How to calculate the shared area for house purchase? Latest hot spot analysis and calculation methods
Recently, the issue of calculating the shared area for house purchase has become a hot topic again. Many home buyers have doubts about the calculation method of the apportioned area when signing a contract, and this may even lead to disputes. This article will combine the hot content of the entire network in the past 10 days, analyze the calculation method of the apportioned area in detail, and provide structured data for reference.
1. What is apportioned area?

The shared area, also known as the shared area, refers to the area of the public parts of the entire building (such as elevator rooms, stairwells, corridors, etc.) that is allocated to each household in proportion. This part of the area will be included in the property rights area of the home buyer, but it cannot actually be used independently.
| Public stall area | Common proportion |
|---|---|
| Elevator room | 5%-10% |
| stairwell | 3%-8% |
| Corridor | 2%-5% |
| Property housing | 1%-3% |
2. How to calculate the apportioned area?
The calculation formula for apportioned area is:Shared area = building area × shared coefficient. The sharing coefficient is determined by the developer based on the ratio of the public area of the entire building to the total construction area.
| House type | Sharing coefficient range |
|---|---|
| Multi-story residential buildings (below 6 floors) | 7%-12% |
| Small high-rise (7-11 floors) | 10%-16% |
| High-rise residential buildings (above 12 floors) | 15%-25% |
| commercial apartment | 20%-30% |
3. Recent hot debate: Is the area of the public pool reasonable?
In the past 10 days, home buyers in many places have reported that the shared area is too high. For example, in a certain building, the shared area accounted for 30%, resulting in the actual housing acquisition rate being less than 70%, triggering widespread discussion. Some experts call for the abolition of shared area and pricing based on the area within the unit, but developers believe that shared area is a necessary cost-sharing method.
4. How to avoid disputes over shared area?
1.View contract details: Before purchasing a house, be sure to ask the developer to provide specific calculation methods and data for the shared area. 2.Compare similar properties: Understand the public sharing coefficient of surrounding properties to avoid excessively high public sharing coefficients. 3.Consult a professional: If you have any questions, you can entrust a lawyer or real estate appraiser to review the contract.
5. Typical case analysis
| Case | Proportion of public stalls | Disputed points |
|---|---|---|
| Property A in a certain city | 28% | The pool contains unfinished areas |
| Community B in a certain province | 22% | The developer has not disclosed the calculation basis. |
Summary
The calculation of the shared area for home purchases involves many factors. Home buyers need to carefully check the contract data to avoid affecting their rights and interests due to shared sharing issues. At present, the rationality of the shared area is still under debate, and the policy may be further adjusted in the future. Homebuyers are advised to stay tuned and choose a reputable developer.
check the details
check the details