How to calculate whether the balcony is considered as a floor area

The balcony should be counted as the construction area, and the calculation rules for the construction area of different balconies are not the same, according to the first article of the "Code for the Calculation of the Construction Area of Construction Projects", the noun of the balcony is interpreted as:

Balconies are attached to the exterior wall of the building and are equipped with railings or railings for outdoor activities.

According to the structure, the balcony can be divided into three categories: cantilevered, embedded and corner.

2. The calculation rules for the area of the first balcony are:

The balcony in the main structure shall be calculated according to the horizontal area of the outer perimeter of the structure; For balconies outside the main structure, half of the area should be calculated according to the horizontal projection area of the structural floor plate.

According to the regulations, only balconies with a cover and a maintenance structure (railing) on this floor are counted as area.

Floor area is a real estate term, which is directly related to the calculation of usable area and utility rate. Depending on the country and region, the definition and measurement standards may not be consistent. The floor area is generally larger than the usable area.

The construction area is an important technical and economic indicator in the field of construction engineering, and it is also one of the important indicators of national macroeconomic regulation and control. The construction area refers to the horizontal area of the outer structure above the foot of the external wall of the building, and is a physical quantity index that reflects the scale of housing construction in square meters.

Specifically, it is divided into the following two situations:

The balcony is enclosed.

The so-called closed balcony refers to the balcony equipped with glass or plastic steel windows. However, it must be a closed balcony with planning approval documents or construction drawings approved by the planning department, and the area can be fully included in the construction area.

The balcony is unenclosed.

Unenclosed balconies are calculated based on the horizontal projection area of the balcony covered within the maintenance structure. If the horizontal projection of the upper cover is less than half of the area of the balcony floor, then the entire balcony is not counted as an area; If the horizontal projection area of the upper cover is less than the area of the balcony floor but greater than half of it, it is calculated as half of the horizontal projection area of the upper cover.

How to calculate the floor area of the balcony:

The enclosed balcony of the original design is calculated according to the horizontal projection area of its periphery;

The balcony (bottom balcony) is calculated as half of the horizontal projection area of its bottom plate;

The concave balcony shall be included in the construction area according to half of its combat area (including the area of the parapet wall);

For the half-raised and half-concave balcony, the construction area of the protruding part is calculated according to half of the horizontal projection area of its bottom plate, and the construction area of the recessed part is calculated according to half of its combat area.

Answer 1: When calculating the area of the balcony, it is necessary to determine whether the balcony belongs to the main structure or outside the main structure. If the balcony belongs to the main structure, then it is calculated according to the horizontal area of the periphery of the balcony structure; If the balcony is outside the main structure, it is usually calculated according to half of the horizontal projection area of the balcony structure floor of the structure.

2. If it is a brick-concrete building, it is usually judged by the exterior wall whether the balcony is inside or outside the main structure; Usually the brick-concrete structure walls are load-bearing walls, and the balconies in the outer walls belong to the main structure balconies. If it is a frame architecture, it should be judged according to the column and beam system, and the main structure balcony is generally in the column and beam system.

The more common balcony design is to transform it into a washing machine, you can customize a laundry cabinet on the balcony, put the washing machine under the laundry cabinet, and install a drying rack on the balcony; If possible, the balcony can be incorporated into the living room, bedroom space, converted into a study, etc. When carrying out balcony renovation, it is necessary to pay attention to the load-bearing problem of the balcony.

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According to the Code for the Calculation of the Floor Area of Construction Projects, the balcony of the building, regardless of its form, is calculated separately according to the main structure of the building, that is, the balcony inside the main structure is calculated as the whole area, and the balcony outside the main structure is calculated as 1 2 area. Therefore, the balcony in the main structure should be calculated according to the horizontal area of the outer periphery of the structure; The balcony outside the main structure should be calculated according to the horizontal projection area of its structural bottom plate1 2 area.

The balcony is calculated as the construction area, the balcony is calculated as 50% of the peripheral horizontal projection area, and the fully enclosed balcony is calculated as 100% of the construction area.

"Code for Calculation of Construction Area of Construction Projects" GB T50353-2013 stipulates:

3 0 21 The balcony in the main structure shall be calculated according to the horizontal area of the outer perimeter of the structure; The balcony outside the main structure should be calculated according to the horizontal projection area of its structural bottom plate1 2 area.

A balcony, also known as a balcony or balcony, is a platform that protrudes from the outer wall of a building and is supported by columns or brackets, and its edges are built with railings to prevent objects and people from falling out of the platform range, which is an extension of the building. Although terraces and balconies refer to the same kind of buildings, there are some slight differences between them.

According to the current construction area calculation specification: the balcony is calculated according to 1 2 regardless of whether it is closed or not; A balcony refers to a balcony with an unroofed roof or a floor height (roof) greater than 5 meters, and the floor area cannot be calculated. Another:

There are some special regulations in the local industry authorities of various provinces, municipalities and prefectures, please check online or relevant departments, or you can find a local qualified housing surveying and mapping company for consultation.

How is the balcony area calculated? Is a balcony considered a floor area? Among them, the enclosed balcony is calculated according to the horizontal projection, and the unenclosed balcony is calculated according to half of the horizontal projection.

Specifically, it refers to: (1) The construction area of the enclosed balcony of the original design shall be calculated according to the horizontal projection area of its periphery; (2) The construction area of the balcony (bottom balcony) is calculated according to half of the horizontal projection area of the bottom plate; (3) The construction area of the concave balcony shall be calculated as half of its net area (including the area of the baffle wall); (4) For the half-lifted and semi-concave balcony, the construction area shall be calculated according to half of the horizontal projection area of the bottom plate for the protruding part, and the construction area shall be calculated according to half of the net area of the recessed part. You can calculate it in the above way, if you are not sure, you can consult the relevant staff!