WD6 1

94 sales in the last 12 months · median £375,000 · Hertsmere

Hertsmere Council · Labour / Liberal Democrat coalition 19/39 seats · 49% · OCD 2026

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Environment This postcode sector

NO₂

13.2

— WHO guide

PM2.5

7.7

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1004.1%

Flood zone7.8% of postcodes

Radonup to <1% of homes

Historic landfill10 sites within ~1 km

EA · UKHSA/BGS · Mining Remediation Authority — indicative, not a property search

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

Listed buildings6

Conservation areas0

Green belt2.3%

Green spaces278

Historic England · OS Open Greenspace

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