Noise Levels in Greater London
London · 330 postcodes · Average: 58 dB (Moderate)
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
Greater London has an average environmental noise level of 58 dB across 330 postcode districts, rated as Moderate. The county contains 13 towns with varying noise profiles.
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.
Greater London is affected by aircraft noise from Heathrow. Check our flight path checker to see which postcodes are under approach and departure routes.
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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