How is the floor area calculated?

How is the floor area calculated? Analysis and practical guide of hot topics across the Internet

Recently, "unit area calculation" has become a hot discussion topic among home buyers and renovation owners. Especially under the dual influence of real estate policy adjustments and the peak decoration season, how to accurately calculate the apartment area is directly related to cost budget and space planning. This article will combine the hot content of the entire network in the past 10 days to provide you with a detailed analysis of the calculation method of apartment area and provide structured data reference.

1. Core points of calculation of house area

According to the "Code for Calculation of Building Area of Construction Projects" issued by the Ministry of Housing and Urban-Rural Development, the area of apartments is mainly divided into the following three categories:

2. Five hotly discussed issues on the Internet

1.Are bay windows included in the area?According to the latest regulations, bay windows with a window sill height less than 0.45 meters and a clear height exceeding 2.1 meters need to be fully calculated in area.

2.Balcony area conversion standard: Enclosed balconies are calculated as 100%, and unenclosed balconies are calculated as 50%. This rule has triggered discussions in many cities.

3.Controversy over shared area: Some netizens posted house purchase contracts in which public shares accounted for more than 30%. Professionals suggested focusing on the "shared share coefficient" (shared share area/construction area).

4.LOFT house type calculation: If the floor height exceeds 4.9 meters, the area can be calculated as two floors, which has become a hot spot in the small apartment market recently.

5.Decoration area error: Actual measurement found that decoration companies generally use the "3 times the floor area" estimation formula when calculating wall area, which deviates from the actual situation by 5-8%.

3. Calculation differences for different building types

4. Recommendation of practical calculation tools

1.official channels: The official websites of local natural resources bureaus provide the "Building Area Calculator" online tool.

2.Mobile APP: The "House Plan Master" APP, which has seen a surge in downloads recently, can automatically identify CAD drawings and calculate the area.

3.Decoration measurement: The laser rangefinder can achieve millimeter-level accuracy in conjunction with the "Renovation Area Calculation Specification" (GB/T 50353).

5. Expert advice and pitfall avoidance guides

1. When purchasing a house, be sure to check the consistency of the "House Area Surveying and Mapping Report" with the data recorded in the contract.

2. The decoration quotation should clearly distinguish between "calculation based on building area" and "calculation based on apartment area".

3. For donated areas (such as basements and attics), it is necessary to confirm whether they are included in the property rights registration.

4. The recent “zero public stall” promotions are mostly marketing gimmicks, which actually balance costs by increasing unit prices.

From the above structured data analysis, it can be seen that the calculation of house area not only involves professional standards, but is also closely related to consumer rights and interests. It is recommended that before purchasing or renovating a house, you should fully understand the local calculation standards and consult a professional surveying and mapping agency if necessary to avoid economic losses due to area disputes.