Residential floor area refers to the total habitable area within a residential building and is an important indicator used to measure the actual usable area of a house. This indicator is important for property developers, property owners, and home buyers. This article will detail how residential floor area is calculated, including the different space types and terminology within the building.
1. Dimensions of the exterior walls of the building.
Building façade dimensions are the basis for calculating the floor area of a dwelling. It refers to the length and height of the four exterior walls of a building. Typically, the Cartesian coordinate system is used to measure the coordinates and length of each door and window to determine the dimensions of a building's exterior walls. These measurements will be used to calculate the sum of residential floor areas.
2. The display area and the area charged by the building.
In the calculation of residential floor area, there are two important concepts that need to be distinguished, namely the display area and the building charge area. Display area generally refers to the area shown in an advertisement for sale or rental of a home, while building charge area is a metric used to calculate property tax and other home-related expenses. The chargeable area of the building is usually larger than the display area, as it includes common areas, corridors, stairs, etc.
3. Calculation methods for different space types.
The calculation methods of different space types are also key to calculating the floor area of a dwelling. Here are a few common space types and calculations
1.Hallways and stairs The area of common areas such as hallways and stairs is usually apportioned according to a certain percentage of the floor area.
2.Actual usable area Actual usable area refers to the actual habitable area within a residential building, excluding walls, support structures, and other uninhabitable spaces.
3.Garages and storage rooms The area of non-residential spaces, such as garages and storage rooms, is usually calculated separately and is not included in the residential floor area.
4.Balconies and terraces Balconies and terraces are calculated differently depending on the country and region. Some places consider it as part of the floor area, while others don't count.
4. Calculation formula and practical operation.
The calculation of residential floor area usually uses a certain formula or algorithm. These formulas may vary from country to country and country to country. In practice, it is usually necessary to subdivide the building, calculate the area of different space types separately, and then sum to obtain the total area. At the same time, it is also necessary to consider the thickness of walls, columns, and other structures, and make appropriate corrections.
Conclusion The calculation method of residential floor area involves the distinction of building exterior wall size, display area and building charging area, as well as the calculation methods of different space types. In practice, it is necessary to pay attention to the influence of various factors, such as the area allocation of common areas and the exclusion of non-living space. Correctly calculating the floor area of a dwelling is very important for both property developers and home buyers, so it is necessary to strictly follow the prescribed methods and standards.
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