Road & rail noise map for Ottery St Mary
Town in Devon, South West
We analysed 455 postcodes in and around Ottery St Mary, Devon against DEFRA's Strategic Noise Mapping (Round 4, 2022). 17% of them (76) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 83% 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 EX11 1LW (road noise 65.0–69.9 dB by day).
Noise map of Ottery St Mary
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 | 12% (53) | 6% (28) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 5% (22) | 2% (11) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (1) | 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 | 83% | 91% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (2) | 0% (0) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 0% (0) | 0% (0) |
| 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% | 100% |
Share of the 455 postcodes within ~5 km of the Ottery St Mary centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Ottery St Mary
Check a specific postcode
Example searches: EX11 1LW · EX11 1BU · EX11 1AF · EX11 1AJ · EX11 1BT · EX11 1AL
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 Ottery St Mary?
- We analysed 455 postcodes in and around Ottery St Mary, Devon against DEFRA's Strategic Noise Mapping (Round 4, 2022). 17% of them (76) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 83% 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 EX11 1LW (road noise 65.0–69.9 dB by day).
- Where is the most road noise in Ottery St Mary?
- The postcodes with the highest modelled daytime levels in and around Ottery St Mary are EX11 1LW, EX11 1AF, EX11 1GN, based on DEFRA's 2022 model of major roads and railways.