— ACRERIGHT AREA REPORT · POSTCODE SECTOR
Home › Sevenoaks › TN14 7 · postcode sector
5,560 people · median £742,500 · Sevenoaks
High 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-1000.5%
Flood zone2.7% of postcodes
RadonAffected Area (up to 3–5%)
Historic landfill21 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 buildings158
Conservation areas6
Green belt95.2%
Green spaces923
Historic England · OS Open Greenspace
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