PO17 5

72 sales in the last 12 months · median £300,000 · Winchester

High wellbeing

Winchester Council · Liberal Democrat-controlled 36/45 seats · 80% · OCD 2026

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Environment This postcode sector

NO₂

8.2

— WHO guide

PM2.5

6.1

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1002.4%

Flood zone3.3% of postcodes

RadonAffected Area (up to 3–5%)

Historic landfill15 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 buildings79

Conservation areas2

Green belt0%

Green spaces360

Historic England · OS Open Greenspace

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