What should the property company do if the elevator in the residential area is modified without the consent of the owner? Is there any relevant law?

The property company needs the consent of the owners' committee to rebuild the elevator. Whether the owners' committee exists or not, it must be approved by the local quality inspection department and rectified by a professional company. It can only be used after obtaining the certificate of safety inspection report.

You can check the elevator law, special equipment safety management elevator management regulations and other relevant laws and regulations online. It is best to consult the local quality inspection department, who will provide corresponding laws and regulations.