Just came across this thread and decided to post up our own situation for the record and to see if anyone has any thoughts on the matter.
Our neighbor started up a nursery a number of years ago (2004 maybe?). The planning stage was rushed through and the council waived the need for a proper impact assessment at the request of the owner (would put too much risk into the business or some-such nonsense) without allowing other parties any time to challenge this decision. They have subsequently agreed to increase the allowed number of children. They now have 111 registered children with a 101 child limit at any one time with operating hours from 7.30am-8pm. The business is open all year round and we frequently have weekends ruined by garden parties for the parents, sports days and have even had "evening" garden parties with bands playing 'til 1am - these bands are described as being indoors but since they, as usual, had the doors WIDE OPEN ONTO THE GARDEN I think that description is fairly invalid.
It would be nice to say that the children play outside for 'up to three or four hours at a time' but it is more accurate to say they are inside for up to two hours at a time, around lunch, if the weather is anything other than a thunder storm. They have goats, chickens and god knows what other animals in the next garden over, which the owner bought after the previous, elderly, occupants had had enough and decided to move out.
The noise from the children would probably be bearable if it weren't for the excessive whooping, yelping, shouting and screaming of the workers - one in particular who is so thoughtless and inconsiderate as to stand at the bottom of the garden at 7:15am shouting to the other workers in the house on a fairly regular basis and whose voice is clearly discernible above the general crying, squealing and screeching of the children.
Even 'indoor' time is clearly audible since they tend to keep all the windows open, again, unless there is a thunderstorm. The fact that they have a purpose built structure in the garden to accommodate the increased number of children doesn't really help much since they often have all the doors and windows open for that as well. Its incredible to find just how quiet the neighborhood is when the nursery give us pause actually listen - despite being under the Heathrow flight path
We were met with an astonishingly rude and obnoxious response when we approached the manager with our concerns and the local council are not in the least bit interested and can only be bothered to send us 'acknowledgement' of our complaints and an information pack about how to bring court proceedings, of which we have quite a few now. All the other nearby residents have, as I said, either been bought out by the owner - it seems to keep them quiet - or just don't seem to care or notice!!!
After seeking legal advice we have found that since the council's planning rules for the business are so lax there is nothing that we can do short of forking out a considerable amount of money in legal fees (yes, we're talking tens of thousands here) to take the local council to court about their failings in regards to the planning system and our chances of winning are slim to non-existent since the council have every right to set whatever rules they wish and the laws regarding nurseries are, well, there aren't really any are there (unlike Australia where they have strict standards and codes of practice to safeguard local residents).