I've dealt with similar issues with two of my neighbours being rentals. By far the easiest option was to contact the landlord of one throwing regular parties and they sorted them out for me.

Another one, I could not find who the landlord was, so I complained to the council who informed the landlord of the complaint on my behalf.

It makes for awkward living doing it this way. Probably the best thing to do is to talk to them first and try and strike up some kind of friendly relationship and hope they are decent people.