Tuesday 29 January 2013 1.44pm
If you've got the ceiling space you can install suspended ceilings, with sound insulating foam in. We did it some years ago and it's wonderful. Because a lot of buildings in the area are conversions, which were done before the relatively recent change in part E of the building regulations (concerning noise transmission), the sound insulation level is poor.
I can't remember the name of the company we used, but they were in and out within the week. You must be sure to use a reputable company, as they use proper, fire-retardent materials, and make sure the beams etc are installed right. Not a cheap project (it cost us 2grand for 2 rooms), but if you happen to live under extremely inconsiderate neighbours who won't modify their behaviour, then it's definitely worth looking
Good luck, I know from personal experience how frustrating this can be. Oh, I'm not council, so I can't help with that aspect.