Road & rail noise map for Brighton and Hove
City in The City of Brighton and Hove, South East
We analysed 3,878 postcodes in and around Brighton and Hove, The City of Brighton and Hove against DEFRA's Strategic Noise Mapping (Round 4, 2022). 29% of them (1,107) have mapped road noise of 55 dB or more by day, and 4% have mapped rail noise. 68% of postcodes have no mapped road or rail noise at all — though that reflects major-source modelling, not guaranteed quiet. The highest modelled level we found is at BN2 9JA (road noise 75.0 dB or more by day).
Noise map of Brighton and Hove
How many postcodes are affected?
Road noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | 16% (614) | 8% (311) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 8% (319) | 6% (224) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 3% (131) | 2% (88) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | 1% (40) | <1% (20) |
| 75.0 dB or more day · 70.0 dB or more night | <1% (3) | <1% (2) |
| Below mapped bands / not mapped | 71% | 83% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | 1% (50) | 1% (53) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 2% (84) | 2% (85) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (3) | <1% (3) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | 0% (0) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 96% | 96% |
Share of the 3,878 postcodes within ~5 km of the Brighton and Hove centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Brighton and Hove
Check a specific postcode
Example searches: BN2 9JA · BN1 4JG · BN1 4JB · BN1 2RL · BN1 2RA · BN1 1RR
What this data does — and doesn't — cover
- Modelled, not measured.These are DEFRA's computer-modelled estimates (Round 4, 2022), not microphone readings at your door.
- Major sources only. The model covers major roads, major railways and large urban areas. Smaller local roads, neighbours, pubs, building sites and aircraft are not included.
- No mapped noise ≠ quiet. If a location shows no band, it means it falls outside the mapped contours — not that it is silent.
- 2022 snapshot.New roads, developments or traffic changes since 2022 won't show. The next DEFRA round is due around 2027.
More detail on the methodology page.
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Nearby areas
Frequently asked questions
- How noisy is Brighton and Hove?
- We analysed 3,878 postcodes in and around Brighton and Hove, The City of Brighton and Hove against DEFRA's Strategic Noise Mapping (Round 4, 2022). 29% of them (1,107) have mapped road noise of 55 dB or more by day, and 4% have mapped rail noise. 68% of postcodes have no mapped road or rail noise at all — though that reflects major-source modelling, not guaranteed quiet. The highest modelled level we found is at BN2 9JA (road noise 75.0 dB or more by day).
- Where is the most road noise in Brighton and Hove?
- The postcodes with the highest modelled daytime levels in and around Brighton and Hove are BN2 9JA, BN1 4JB, BN1 4JG, based on DEFRA's 2022 model of major roads and railways.