Is it legal for the property to install access control in the elevator without authorization?

It is illegal to install elevators in a property without permission.

According to the property management regulations, the elevator is owned by the owner, but the property manages the operation of the elevator on its behalf.

Installing access control in elevators that have been installed and operated belongs to elevator transformation. First, it must be approved by the Bureau of Quality and Technical Supervision, and second, it needs the consent of more than two-thirds of the owners who use the elevator. It is illegal not to have the consent of two thirds of the owners.