Flamstead

15 sales in the last 12 months · median £785,000 · Dacorum

Dacorum Council · Liberal Democrat minority — no overall control 17/51 seats · 33% · OCD 2026

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Environment This neighbourhood

NO₂

8.4

— WHO guide

PM2.5

7.1

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1009.7%

Flood zone1.4% 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

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 buildings50

Conservation areas1

Green belt66.4%

Green spaces602

Historic England · OS Open Greenspace

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