How to punish neighbors for illegal construction?

Yes, you can directly ask the property management center for feedback and ask them to find the downstairs residents to rectify. According to the regulations on commercial housing management and property management, all buildings shall not change their appearance after the project acceptance. If changes are needed, they need to be submitted for approval before they can be rebuilt. And all changes must comply with the provisions of commercial housing, and shall not affect the use of nearby residents. All changes need to be consulted with nearby neighbors. Therefore, if the canopy affects safety, it can be reported to the property management center for mediation at the first time. If there is illegal construction, it will be demolished and the original structure will be restored to normal use. If the property management office does not handle it, it can give feedback to the city for comprehensive rectification, especially those exposed to the roadside, which must be rectified.

Legal basis:

"Property management regulations" Article 46 of the property management area in violation of public security, environmental protection, property decoration and use of relevant laws and regulations, property management companies should be stopped, and timely report to the relevant administrative departments. After receiving the report from the property management enterprise, the relevant administrative departments shall stop the illegal acts or deal with them according to law.