Keeping a noise diary and collecting evidence
In many noise disputes residents feel that “it is loud all the time”, but their written complaints look weak: a couple of emotional sentences and a generic request to “do something”. Lawyers and ombudsmen usually advise a different approach: make the situation as concrete as possible and back it with facts. This article is a practical template for building such a case file.
Why a noise diary matters
A diary helps you:
- show that the problem is systemic rather than isolated;
- link reports from different neighbours into one picture;
- give inspectors and courts a sense of how often and how badly rules are broken;
- avoid forgetting important details when you write a complaint months later.
Similar approaches are used in environmental investigations and occupational noise studies, for example in journals like Environmental Health.
How to keep a diary: simple table
Use whatever format works for you: a notebook, a spreadsheet app or Google Sheets. The key is to log the same fields every time:
- Date and time — e.g.
12 Mar, 11:45 p.m.–1:10 a.m. - Source — upstairs flat, bar under the windows, road, construction site.
- Type of noise — music, shouting, machinery hum, impacts.
- Impact — woke up the baby, impossible to sleep or work, causes headaches.
- Witnesses — neighbours who can confirm what happened.
Each row is one episode. After a few weeks you will see clear patterns: how many times per week and at what hours the problem appears.
Photos, videos and measurements
Phone apps will not replace professional sound level meters discussed by NIOSH, but they are useful as supporting evidence:
- short videos capturing the characteristic sound and on‑screen time;
- screenshots from noise‑meter apps (with a clear note that they are indicative only);
- photos of notices, opening hours or construction schedules.
Keep original files, not just copies forwarded in messengers, so that metadata and creation dates are preserved.
Using NoiseMap as part of the evidence
Points on NoiseMap form a separate layer of evidence. When you file a report on the map you:
- record the location, type of source and time of day;
- allow other residents to log similar episodes at the same address;
- can include a link to the exact point or “hot zone” in your complaints.
Turning raw data into a strong complaint
When you are ready to write, prepare a short summary and attach the diary:
- describe briefly since when the problem exists, who the source is and how it affects you;
- attach a scan or printout of your diary for the last weeks;
- list neighbours willing to confirm the facts;
- add links to NoiseMap points and to relevant quiet‑hours regulations.
The more structured and calm your letter looks, the more seriously it is taken. A noise diary and NoiseMap turn vague “it’s very loud” into a clear and evidence‑based story that city services and courts can actually work with.