— ACRERIGHT AREA REPORT · POSTCODE SECTOR
Home › Sevenoaks › TN8 6 · postcode sector
6,090 people · median £471,000 · Sevenoaks
Cleaner air than mostHigh wellbeing
Sevenoaks Council · Conservative minority — no overall control 23/54 seats · 43% · OCD 2026
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Environment This postcode sector
Air quality
µg/m³ annual mean · DEFRA
Ground checks
Surface water 1-in-1003.7%
Flood zone9.1% of postcodes
Radonup to 1–3% of homes
Historic landfill18 sites within ~1 km
EA · UKHSA/BGS · Mining Remediation Authority — indicative, not a property search
Transport noise (Defra)
Road & rail noise bands (≥55 / ≥65 dB Lden) are being added — not yet available for this area. They cover major sources only; "not mapped" ≠ "quiet".
Defra strategic noise mapping
Heritage & green space
Listed buildings102
Conservation areas1
Green belt92.2%
Green spaces923
Historic England · OS Open Greenspace
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