Anti-social neighbours - Southwark refuses to act

[P.O.U.S.theWonderCat]

Removing the fence and replacing it with something that gives too much to provide a satisfying rebound or even something that might puncture the ball is not a bad idea - assuming you own the fence.

And for what it's worth, I think mynamehere was making an ill-judged but innocent attempt to make the point that the only thing you really can control is your response to this. As someone who has been made so miserable by neighbours that I nearly moved to deal with it, and having had the ball-kicking hell as well, I do empathise, but you also need to be wary of how this trauma affects your outlook. The fact that you are anticipating being accused of making trouble by your other neighbours before you've engaged with them points to this situation potentially making you assume the worst of avenues of action.

[Angelina]

how about replacing the fence with a holly bush?

If it's your fence, you could easily take it down and have something else put up.