Road & rail noise map for Billericay
Town in Essex, Eastern
We analysed 971 postcodes in and around Billericay, Essex against DEFRA's Strategic Noise Mapping (Round 4, 2022). 22% of them (214) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 78% 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 CM12 9FQ (road noise 70.0–74.9 dB by day).
Noise map of Billericay
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 | 15% (148) | 6% (60) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 6% (54) | 3% (30) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 1% (11) | <1% (8) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (1) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 78% | 90% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (3) | <1% (4) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | <1% (1) | <1% (1) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 0% (0) | 0% (0) |
| 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 | 100% | 99% |
Share of the 971 postcodes within ~5 km of the Billericay centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Billericay
Check a specific postcode
Example searches: CM12 9FQ · CM12 9LG · CM12 0NB · CM12 9BQ · CM12 9DF · CM12 9LW
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 Billericay?
- We analysed 971 postcodes in and around Billericay, Essex against DEFRA's Strategic Noise Mapping (Round 4, 2022). 22% of them (214) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 78% 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 CM12 9FQ (road noise 70.0–74.9 dB by day).
- Where is the most road noise in Billericay?
- The postcodes with the highest modelled daytime levels in and around Billericay are CM12 9FQ, CM12 9LW, CM4 9BL, based on DEFRA's 2022 model of major roads and railways.