RH20 2

7,362 people · median £652,500 · Horsham

Cleaner air than most

Horsham Council · Liberal Democrat-controlled 26/48 seats · 54% · OCD 2026

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Environment This postcode sector

NO₂

5.4

— WHO guide

PM2.5

5.9

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1000%

Flood zone0.4% of postcodes

RadonAffected Area (up to 10–30%)

Historic landfill5 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 buildings167

Conservation areas7

Green belt0%

Green spaces2,375

Historic England · OS Open Greenspace

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