The interior construction area and the shared public construction area of a house are the total construction area owned by the owner of the house, and are also the two major elements of the registration of house ownership. The indoor construction area of a house refers to the construction area occupied and used by the owner of the house alone, which consists of three parts: indoor construction area, interior wall area and indoor balcony construction area.
Shared public building area refers to the part of the building area that should be shared or used by all property owners, including elevator shaft, pipeline shaft, stairwell, garbage chute, power distribution room, equipment room, public hall, aisle, basement and guard on duty. And the public services of the whole building.
* * * The construction area also includes the partition wall between the suite and the public building, and the construction area of half of the horizontal projection area of the external wall (including gables). Basements, carports, garages, guard rooms serving multiple buildings, and management rooms used independently as basements of civil air defense projects are usually not included in the * * * construction area.
Extended data 1. No matter how high a single-storey building is, it is calculated as one floor, and its construction area is calculated as the horizontal area above the external wall of the building. Part of the floors (such as the attic) of the single-storey residential building area should also be calculated.
2. The construction area of multi-storey or high-rise residential buildings is calculated according to the sum of the construction areas of each floor, the bottom floor is calculated according to the peripheral horizontal area above the toe of the external wall of the building, and the second floor is calculated according to the peripheral horizontal area of the external wall.
3. The construction area of the basement, semi-basement and corresponding entrances and exits shall be calculated according to the horizontal area of the periphery of the upper external wall (excluding the lighting well, moisture-proof layer and its protective wall).
4. Use deep foundation as underground overhead floor. 2.2 meters high, the construction area is calculated by half of the horizontal area outside the overhead floor.
5, through the building channel, the hall in the building, hall, regardless of height, are calculated according to a floor construction area. The hall corridor is calculated according to its horizontal projection area.
6. The construction area of elevator shaft, elevator shaft, garbage chute, pipeline shaft and chimney with wall shall be calculated according to the natural floor of the building.
7. The technical floor in the residential building (used for placing all kinds of equipment and maintenance) is more than 2.2m high, and the construction area shall be calculated according to the horizontal area outside the technical floor.
References:
Baidu encyclopedia-construction zone