Sky Score

INDEPENDENT NOISE + LIVABILITY DATA

Type a postcode (e.g. SW11 1AA ) or click a borough to see its score

LHR PATHS

LCY PATHS

HELIPORT

DEFRA AIRCRAFT NOISE (dB Lden)

55-59 dB

60-64 dB

65-69 dB ↓ WHO sleep

70-74 dB

75+ dB

What this is: DEFRA Strategic Noise Map (Round 4, published 2022), the long-term average aircraft noise around LHR, LCY and LGW - modelled from a year of actual flight tracks, not a live feed. That year is 2021, when COVID restrictions held air traffic far below normal, and DEFRA describes the Round 4 result as a highly anomalous situation. These contours therefore understate a typical year, most at the airports worst affected. Round 4 is still the latest official round; DEFRA expects Round 5 around 2027. Used by councils for planning decisions. The overlay shows DEFRA's modelled contours; a postcode search gives a 0-10 quiet score for that location, not a decibel reading.