Southend-on-Sea

180,686 people · median £330,000

Southend-on-Sea Council · Labour / Independent / Liberal Democrat coalition 25/51 seats · 49% · OCD 2026

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Environment This district

NO₂

9.6

— WHO guide

PM2.5

7.2

— WHO guide

µg/m³ annual mean · DEFRA

Surface water 1-in-1002.3%

Flood zone5.5% of postcodes

Radonup to <1% of homes

Historic landfill16 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 buildings107

Conservation areas18

Green belt13.8%

Green spaces77

Historic England · OS Open Greenspace

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