Road & rail noise map for Marlow
Town in Buckinghamshire, South East
We analysed 1,021 postcodes in and around Marlow, Buckinghamshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 22% of them (229) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 77% 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 SL7 3HH (road noise 70.0–74.9 dB by day).
Noise map of Marlow
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% (154) | 6% (61) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | 5% (53) | 4% (38) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | 2% (19) | 1% (15) |
| 70.0–74.9 dB day · 65.0–69.9 dB night | <1% (3) | 0% (0) |
| 75.0 dB or more day · 70.0 dB or more night | 0% (0) | 0% (0) |
| Below mapped bands / not mapped | 78% | 89% |
Rail noise
| Band | Day (LAeq,16h) | Night (Lnight) |
|---|---|---|
| 55.0–59.9 dB day · 50.0–54.9 dB night | <1% (3) | <1% (3) |
| 60.0–64.9 dB day · 55.0–59.9 dB night | <1% (2) | <1% (2) |
| 65.0–69.9 dB day · 60.0–64.9 dB night | <1% (1) | <1% (1) |
| 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 | 99% | 99% |
Share of the 1,021 postcodes within ~5 km of the Marlow centre. Source: DEFRA Strategic Noise Mapping Round 4 (2022), Open Government Licence.
Noisiest postcodes in and around Marlow
Check a specific postcode
Example searches: SL7 3HH · SL7 1DB · SL7 1DA · SL7 1BE · SL7 1AX · SL6 5LW
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.
Bothered by road or rail noise at home?
Acoustic and secondary glazing typically cuts perceived traffic noise dramatically. We're building a free quote-matching service with vetted installers — leave your email and we'll contact you when it launches.
Nearby areas
Frequently asked questions
- How noisy is Marlow?
- We analysed 1,021 postcodes in and around Marlow, Buckinghamshire against DEFRA's Strategic Noise Mapping (Round 4, 2022). 22% of them (229) have mapped road noise of 55 dB or more by day, and <1% have mapped rail noise. 77% 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 SL7 3HH (road noise 70.0–74.9 dB by day).
- Where is the most road noise in Marlow?
- The postcodes with the highest modelled daytime levels in and around Marlow are SL7 3HH, SL7 1DA, SL7 1DB, based on DEFRA's 2022 model of major roads and railways.