We live in a cul-de-sac. We are one of 5 families whose children love playing out on their bikes/scooters etc and they all get on famously, including the adults. It is, what I call, a 70's utopia.
I was approached this evening, at about 730 by a bloke who lived on the other side of the fence at the end of the road who said that the noise of the children was causing such offence that he was considering moving. He left with the line 'well I've asked you nicely'. I was on my own with my 2 at this point, despite there being 3 families out there half an hour before 
I have logged it with the police, but is the noise of children playing so offensive? They don't chuck things over the fence, they just play. Yes they shriek at times, but they are only out there for about an hour or two a day!!
They are mostly between the ages of 3 and 5.