National standard of pool area 202 1

202 1, the national pool area, multi-layer pool area is generally12%-18%; The shared area of small and high-rise buildings is about18%-24%; The pool area of high-rise buildings is generally 25%-30%.

I. Scope of pool area

The pool construction area refers to the construction area of the public parts of the whole building shared by the owners of the whole building. Including elevator shaft, pipeline shaft, stairwell, garbage chute, power distribution room, equipment room, public hall, aisle, guard room on duty, etc. , as well as the construction area of the public service room and management room of the whole building, calculated according to the horizontal projection area.

The apportioned construction area also includes the construction area of half of the horizontal projection area of partition walls and external walls (including gables) between public buildings. Basements for independent use, carports, garages, guard rooms serving multiple buildings, management rooms and basements for civil air defense projects are not included in the * * * construction area.

Second, the pool area calculation

The shared area is the common area of the whole building, and the walls of the building are also inside. The house with elevator is relatively large.

Calculation method of sharing public building area by household;

1, calculate the distribution coefficient.

Allocation coefficient = sum of public area to be allocated/total construction area = (sum of total construction area-sum of interior construction area)/total construction area.

2. Allocation area of each suite = allocation coefficient × construction area of each suite.

Extended data:

Rules for calculating the allocation of commercial housing sales area and public building area

Article 1 According to the relevant national technical standards, the Rules for the Calculation of Commercial Housing Sales Area and the Allocation of Public Building Area (for Trial Implementation) are formulated.

Article 2 These Detailed Rules shall apply to the sale of commercial houses and the registration of property rights.

Article 3 The sale of commercial housing shall be priced according to the construction area. The construction area shall be calculated according to the current national "Construction Area Calculation Rules".

Article 4 The overall sales of commercial housing, the sales area of commercial housing is the overall construction area of commercial housing (if the basement is used as a civil air defense project, it will be deducted from the overall construction area of commercial housing).

Article 5 Commercial houses are sold as "suites" or "units", and the sales area of commercial houses is the sum of the interior or interior construction area purchased by the buyers and the public construction area to be shared.