Once you have reported the noise and kept a diary, the letter to environmental health is what converts your record into action. A good letter does three things: it shows you are organised and serious, it gives the officer everything they need in one place, and it quietly signals that you know your rights. Here is the anatomy, then a full worked example you can adapt.
Adapt the bracketed details to your own case. Keep it to a single page — an officer reading twenty complaints a day will thank you for it.
Dear Environmental Health Team, Re: Formal noise nuisance complaint — [your address] Existing reference: [reference number, if any] I am writing to make a formal complaint about a persistent noise nuisance affecting my home, and to ask that you investigate it as a statutory nuisance under the Environmental Protection Act 1990. Since [date] I have been disturbed by [type of noise] coming from [address or source]. It happens [how often — for example, most nights between 11pm and 3am] and has affected my household's sleep and daily life. I have kept a detailed noise diary recording each incident, its time, duration and effect on me; a copy is attached, covering [dates]. I have already [reported this on (date) / raised it with my neighbour on (date)], but the disturbance has continued. I would be grateful if you would: (1) open an investigation; (2) advise how I should log further incidents — for example through any out-of-hours service or app you operate; and (3) confirm the next steps and likely timescales. Please could you reply within 14 days. If the noise is assessed as a statutory nuisance, I understand you may serve an abatement notice. Should the council be unable to act, I also intend to consider taking my own action under Section 82 of the same Act. Yours faithfully, [Full name] [Phone] · [Email]
The letters that disappear into a backlog tend to share the same faults: they lead with anger about the neighbour rather than facts about the noise; they contain no dates, times or evidence; they never actually say what they want the council to do; or they make threats. Keep it calm, specific and organised, attach the diary, and make one clear request with a reply-by date — that alone puts you ahead of most complaints.
This is a general example for information only, not legal advice, and no outcome is guaranteed. Adapt it to your own circumstances, and consult a solicitor for advice on your specific case.