Residential building area refers to the building area for people to live in, including the collective dormitory and family dormitory of enterprises, institutions, organizations, etc
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So what are the contents of residential building area and how to calculate it? 1、 The area of residence is composed of five parts
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1
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Auxiliary area refers to the net area of indoor space in each floor of residential building that is not directly used for housing life, including aisle, kitchen, toilet, etc
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2
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Residential area refers to the residential building area, that is to remove the horizontal area occupied by walls, columns and other building components (that is, the total area occupied by corridors, stairs, elevators, water tanks, floors, etc.)
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Developers need to calculate the building area of each household when they sell commercial housing, which has the problem of public area allocation
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2、 How to calculate the residential area? The calculation method of residential building area varies with different floors and structures: (1) no matter how high a single storey residential building is, it is calculated according to one floor, and the building area is calculated according to the peripheral horizontal area above the external wall plinth of the building; (2) the building area of a single storey residential building with internal parts (such as attic) is calculated according to the external wall plinth; (3) the building area of a residential building with more than two floors is calculated according to the external wall plinth The building area of the first floor is calculated according to the method (1), and that of the second floor and above is calculated according to the horizontal area of the outer wall
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Therefore, the building area of the basement, semi basement and equivalent entrances and exits is calculated according to the horizontal area of the outer wall of the upper entrance (but excluding the lighting well, moisture-proof layer and protective wall, etc.); (4) the building area of multi-storey and high-rise residential buildings Staircases, elevator shafts, garbage channels, ventilation channels, etc
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are included in the total building area according to the number of natural floors of the building; 100% of the building area should be calculated for the technical floors of high-rise buildings (for the placement of pipeline equipment and repair and maintenance) if the floor height exceeds 2.2m; (5) the door bucket protruding from the wall, the corridor with top cover and column, the eaves and awning, such as the “arcade” in Shanghai, Tianjin, Guangzhou and other cities In Beijing siheyuan, the area of the plagiarism should be calculated according to the horizontal area of the outer line of the column; if there is no column, corridor or awning, the building area should be calculated according to 50% of the projected area; (6) in multi-storey or high-rise residential buildings, the building area of the staircase, water pump room, water tank room and elevator room protruding from the roof envelope should be calculated according to the horizontal area of the periphery of the envelope; (7) The balcony of the building shall be calculated according to 1 / 2 of its horizontal projection area; (8) the construction area of overhead corridor, outdoor stairs without permanent roof cover, and outdoor steel stairs and ladders for maintenance and fire fighting shall not be calculated
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Source: Encyclopedia of real estate knowledge.
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