Anybody ever do outdoor advertising on their property's wall?

[Shin Bo]

Hello everyone,

Not sure if this is the right forum , but I was wondering if anybody here has experience with trying to lease out part of their wall for advertising. I have a family member that has a piece of property in downtown Philadelphia that gets pretty good foot traffic and the space is currently just blank. 

I brought up the idea to him but I don't have the faintest idea of how to begin searching for advertisers or even finding out what type of permits would be necessary for something like this. If anybody has any experience with this type of thing and would like to dispense some advice, it would be much appreciated.

Thank you

Shin