I couldn't find anything which is the equivalent of this idea...
Basically, I was thinking that for living area's (e.g. Hauki Seeks Manor) there could be a 'Community Bank'.
This would be a chest located in the lobby, where ONLY people living within the location could deposit and withdraw items.
I was just thinking this would be a fun thing to have which would help benefit you and your neighbours greatly and would prevent random players coming in and taking something which was left for your neighbours to use (an example being paper to be used for the billboard).
This is only an idea, I welcome people to give their input and give the pros/cons. =)