Noise Levels in Greater London
London · 330 postcodes · Illustrative model average: 58 dB
Illustrative values assigned from postcode lookup groups and preset ranges; not measured or validated predictions. How these values are produced.
How noisy is it in Greater London?
Visitor votes are opinions, not measurements. They are shown separately and never mixed into the modelled dB values on this site.
Loading votes
- Quiet
- 0
- OK
- 0
- Noisy
- 0
How votes are stored
Voting is anonymous: no account and no free text. To stop repeat votes we store a pseudonymised identifier with each vote, a one-way SHA-256 hash of your IP address, your browser details and a secret key plus the current date, so the identifier changes every day. Your IP address itself is not stored. The hash still counts as pseudonymised personal data under UK GDPR. Our lawful basis is legitimate interests: keeping the votes honest and the results useful.
Votes and their hashes are deleted after 90 days. The hash is never sent to Google Analytics; the analytics event for a vote carries only the district and the rating. ND Media Ltd (company 10784524) operates NoiseCheck.uk and is the data controller. To ask about your data or object to this use, email [email protected]. You can also complain to the ICO.
Transport Infrastructure
Motorways & Major Roads
Airports
Railway Lines
Towns in Greater London Ranked by Noise
| Town | Avg dB | Rating | Postcodes |
|---|---|---|---|
| Watford | 64 dB | Noisy | 11 |
| Southall | 63 dB | Noisy | 11 |
| Enfield | 61 dB | Noisy | 11 |
| Romford | 60 dB | Noisy | 20 |
| Twickenham | 60 dB | Noisy | 19 |
| Dartford | 59 dB | Moderate | 18 |
| Ilford | 59 dB | Moderate | 11 |
| Bromley | 58 dB | Moderate | 8 |
| Wembley | 58 dB | Moderate | 10 |
| Croydon | 57 dB | Moderate | 9 |
| London | 57 dB | Moderate | 171 |
| Kingston Upon Thames | 57 dB | Moderate | 24 |
| Sutton | 56 dB | Moderate | 7 |
Noise in Greater London
In this site's illustrative model, Greater London has an average assigned value of 58 dB across 330 postcode districts. The county contains 13 towns listed in the dataset. These values do not establish local environmental noise levels.
Major motorways and A-roads running through Greater London include A1(M), A2, A20, A205, A3. Postcodes near these routes tend to have higher road traffic noise. See our motorway noise guide for affected areas.
Airport lookup groups for Greater London include Heathrow. Lookup membership and assigned values cannot establish overhead routes, dominant local sounds or absence of aircraft noise. Consult official airport tracking and noise maps.
Railway lines through Greater London include Brighton Main Line, East Anglia Main Line, East Coast Main Line and 6 more. Our railway noise guide covers affected areas.
Related Guides
- How noise affects house prices — impact on property values by noise source
- Soundproofing your home — solutions for windows, walls and floors
- Quietest places in the UK — the 50 quietest postcode districts
- Noisiest places in the UK — the 50 noisiest postcode districts
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