Is there a national law that the maximum pool area cannot be exceeded?

The pool area must be controlled in which range, and there is no clear stipulation at present.

Generally, the shared area of multi-storey houses is about 10% ~ 13%, the shared area of plate houses below 18 is about 13% ~ 15%, and the shared area of point buildings is mostly15% ~/kloc.

Should not be calculated as public building area:

1. Basement, garage, etc. Has been sold or rented as an independent use space, should not be included in the public construction area.

2, as a civil air defense project basement is not included in the public building area.

3. Space under the stairs If the building area of the stairs has been calculated, the building area will not be calculated regardless of whether the space under it is used or not.

4. The ground floor of the street-facing building and the cantilever porch of the public * * * passage are used as the street-facing lanes of public * * * roads, regardless of whether they have columns or maintenance structures, the construction area is not calculated.

5. Buildings similar to balconies, verandahs and eaves galleries that are not connected with the interior are not considered as construction areas.

Reference for calculation of pool area.

1. Construction area of elevator shaft, stairwell, garbage chute, power distribution room, equipment room, public hall and aisle, basement, guard room on duty and other public and management rooms that serve the whole building functionally.

2. Half of the horizontal projection area of the partition wall between the suite (unit) and the public building space and the external wall (including gables).

3. The external wall on the same floor has both the main wall and the glass curtain wall. The building area is calculated based on the load-bearing wall, and the wall thickness is calculated according to the load-bearing wall thickness. When the wall thickness of each floor is different, it will be calculated separately according to the floor. Metal curtain walls and curtain walls made of other materials shall be treated with reference to the relevant provisions of glass curtain walls.

4. If the roof of a sloping house is a sloping roof (sloping roof), the construction area of the part with a height of more than 2.20 meters shall be calculated.

5. If the horizontal projection of the periphery of the irregular enclosed balcony, pick gallery and overhead corridor exceeds the outer edge of the floor, the construction area shall be calculated according to the horizontal projection of the floor.

6. The construction area of expansion joints and settlement joints connected to either side of the room that have the general conditions of the house and can be used normally should be counted.

7. Non-vertical walls For houses with inclined, curved and other non-vertical walls, the construction area shall be calculated for the part with a height of more than 2.20m.. If the wall of the building inclines outward beyond the outer edge of the bottom plate, the construction area shall be calculated by the projection of the bottom plate.