The property owner has the right not to allow merchants to hang banners in front of their doors

To make outdoor slogans, signboards, banners, display boards, etc., you need to first go to the advertising section of the industrial and commercial department to apply for outdoor advertising, and then go to the urban management department for approval

Without these procedures, the property management can block it. When the blocking is ineffective, you can report it to the urban management for handling.

You probably haven’t gone through any formalities.

Although it is just a banner, this also falls within the scope of outdoor advertising and requires approval. Unless you hang a public welfare banner, such as celebrating the 65th anniversary of the founding of the People's Republic of China, no one will care about you. But if you want to post a message to celebrate the 65th anniversary of the founding of the People's Republic of China and offer a huge discount of 50-20% off the entire store, this is an advertisement, and someone must take care of it.