Cost allocation should be calculated by combining floors and areas. That is to say, the cost shared by households with high floors and large areas will be higher accordingly. This is also in line with the real estate appreciation and the reality that high floors need elevators more than low floors. Based on the low demand of the residents on the second and third floors for elevators, the lighting impact on the residents on the second and sixth floors after installing elevators is 1.

1, the residents on the second floor will not bear the installation fee.

Total cost = floor sharing coefficient × area × shared cost per square meter.

Integer calculation of family area = actual area.

Extended data:

Provisions of Shenzhen Municipality on the Administration of Installation of Elevators in Existing Houses

Article 1 In order to strengthen the management of elevator installation in existing houses, improve the quality of life of residents, and facilitate residents' travel, these Provisions are formulated according to the Guiding Opinions on Elevator Installation in Existing Houses in Guangdong Province and the Supplementary Guiding Opinions on Promoting Elevator Installation in Existing Houses in Guangdong Province, combined with the actual situation of our city.

Article 2 These Provisions shall apply to the planning and management of installing elevators in existing houses in our city.

The term "existing residence" as mentioned in these Provisions refers to a unit residence with legal ownership certificate, non-single property right, four floors or above (including four floors, excluding basement) that has been completed and put into use without elevators.

The installation of elevators in existing houses can be applied in units (the installation of elevators in these Provisions is in units). To declare the building or the whole community, all units applying for installing elevators shall meet the relevant requirements of these Provisions.

Article 3 Existing houses may apply for installing elevators in the red line of construction land on the premise of meeting the building structure and fire safety.

Baidu Encyclopedia-Provisions of Shenzhen Municipality on the Administration of Elevator Installation in Existing Houses