Quote Jennifer Jones:
BTW... in terms of the law, you are legally entitled to make noise during the day (such as playing instruments/partying). Any noise between the hours of 11pm and 7am is considered "noise pollution" and can be reported to Environmental Health - although usually it's a long and tedious process to get the council to listen, and this in itself doesn't immediately mean the law will be involved - usually that only happens when E.H. have been on your case for a long period of time gathering evidence,
I think you need to stick a 'reasonable' in that first sentence Jenny. For example I know that there are certain restrictions on the hours a builder can make noise and I suspect that there are many other restrictions. An acoustic drum kit certainly isn't what I would call a reasonable noise level and I would expect any drummer to only play when the neighbours were happy - or if they'd built a properly soundproofed practice room.
JRP Music - Audio Mastering and Restoration.