High Rail Noise
Significant train noise
High rail noise is the top band Propbar assigns from the strategic noise maps. It marks modelled train noise over 70 dB Lden. The Lden figure is a year-round average that counts evening and night trains more heavily than daytime ones. All four UK nations map strategic noise, each through its own government body.
What This Means
Passing trains will be a plain feature of life here, audible indoors and dominant in the garden. Close to a busy line, a train may interrupt a conversation or wake a light sleeper. Rail noise comes in bursts, which many people find easier to live with than a road's constant hum. Glazing and room layout change the indoors a great deal, and change the garden not at all. If you later extend, the council may ask for a noise assessment before granting permission. This does not normally affect mortgage approval, buildings insurance or resale.
Score Ranges
Low Noise
45 to 60 dB LdenTrain noise is barely noticeable and rarely intrudes indoors.
Medium Noise
60 to 70 dB LdenTrain noise is noticeable, particularly around the busiest hours.
High Noise
Over 70 dB LdenTrain noise is frequent and loud enough to disturb sleep.
Practical Advice
- Visit at the evening peak and again after midnight to hear the loudest hours the year-round average hides.
- Get a quote for secondary glazing on the rooms facing the line before you agree a price.
- Ask your surveyor to check for ground-borne vibration if the house sits within a few metres of the track.
- Compare the asking price with recent sales of similar homes a few streets back from the line.
Additional Information
Strategic maps model airborne noise only. Ground-borne vibration from a nearby line is felt rather than heard, and no band here captures it. The link goes to England's mapping round; the other three nations publish their own.