Broxbourne

99,009 people · median £425,000

Broxbourne Council · Conservative-controlled 25/30 seats · 83% · OCD 2026

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Environment This district

NO₂

11.5

— WHO guide

PM2.5

7.4

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1002.4%

Flood zone12.9% of postcodes

Radonup to 1–3% of homes

Historic landfill237 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 buildings260

Conservation areas6

Green belt55.1%

Green spaces63

Historic England · OS Open Greenspace

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