Does PO17 5HE flood?

Up to Medium likelihood

Properties in PO17 5HE sit in the Environment Agency's Medium flood-likelihood band (worst property). The band is the worst found in the postcode — it describes the land around properties (defence-adjusted, rivers & sea), not any single address, and not today's conditions.

Likelihood band	Annual chance	Properties
High	greater than 3.3%	0
Medium	1% – 3.3%	1
Low	0.1% – 1%	4
Very low	below 0.1%	0

Over a 25-year mortgage, a property in a medium-likelihood area has a 22–57% chance of flooding at least once.

The ground around PO17 5HE

The ground here sits at about 37 m above sea level and falls 32 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the east, 2.3 m higher.

Instant access · no account needed · 14-day money-back guarantee or see the free preview first

Get the full flood report for PO17 5HE — £19 Free preview first · instant access · no account needed The detail below — flood history, warnings, rivers, overflows — is part of FloodRadar's property flood-risk report. The official band above is free; the preview shows more before you decide.

Inside the full report for PO17 5HE

FloodRadarProperty Flood-Risk Report

PO17 5HE

Moderate flood risk — investigate further

Because properties in the medium likelihood band; 5 recorded floods nearby; 439 official warnings since 2006.

D Today — indicative grade (A best → E)

··· By the 2050s — EA climate scenario (in the full report)

⚑ Official warning within 10 km: Yes ⚑ Recorded flood nearby: Yes ⚑ Flood defences within 500 m: Yes ⚑ In flood zone 2 or 3: ···

Rivers & sea

Up to Medium

Surface water

···

Groundwater

Not assessed

Historic flooding

Recorded nearby

Warning history · flood map with building picker · 2050s view · insurance outlook · every dataset receipt — 18 sections

Flood-risk map of this area

Environment Agency flood-likelihood cells

High (>3.3%/yr) Medium Low Very low Marker = postcode centre Base map © OpenStreetMap contributors

Rivers & sea likelihood · illustrative

Surface water (flash flooding) · illustrative

Flood Zones 2 & 3 (planning) · illustrative

2050s projection (climate) · illustrative

The map above shows the real EA rivers & sea likelihood cells around PO17 5HE. The small panels are illustrative previews of the report's per-layer map views — the full report draws each layer for real, plus recorded extents, defences and a building picker on an interactive map.

Official flood warnings near PO17 5HE

439

flood alerts & warnings within 10 km since 2011

of them full flood warnings or severe warnings

2026

most recent warning nearby (2026-03-18)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

Date	Recorded flood	Approx. distance
Dec 2000	Winter 2000/01g_Turkey Island_Shedfield	~1.0 km
Nov 2000	06/11/2000_River Meon_Wickham(9)	~2.8 km
Nov 2000	06/11/2000_River Meon_Wickham(2)	~1.4 km
Nov 2000	06/11/2000_River Meon_Aerial(100)	~2.8 km
Nov 2000	06/11/2000_River Meon_Aerial(114)	~2.9 km

EA Recorded Flood Outlines — absence of a record never proves a place has not flooded. The full report tests whether any extent covered the exact spot.

Named storms that brought flooding here

2013-14 UK winter floods (2013, 96 warnings nearby) · Henk (2024, 12 warnings nearby) · Chandra (2026, 8 warnings nearby) · Eunice (2022, 6 warnings nearby)

The rivers that matter for PO17 5HE

Gauge	River	Distance	Typical high	Highest on record
Wickham	River Meon	1.5 km	19.30 m	20.00 m
MISLINGFORD GS	—	2.9 km	—	—
Mislingford	River Meon	2.9 km	0.65 m	0.88 m
Frogmill	River Hamble	4.8 km	0.92 m	1.63 m

Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.

Storm overflows within 5 km

Overflow	Discharges into	Distance	Spills	Hours
Fareham Road Wickham Ceo	River Meon	1.5 km	70 (2024)	877
Wickham Wwtw	River Meon	1.8 km	105 (2024)	1,955
Fairthorne Manor Ceo	Shawfords Lake	4.2 km	8 (2024)	49
Bishops Waltham Wwtw	The River Hamble	4.2 km	88 (2024)	983

Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.

Flood defences

2 mapped flood-defence assets within 500 m — nearest ~54 m (natural high ground). Defences reduce risk, never remove it.

What the full property report adds

The interactive flood-risk map with a building picker (your exact house, not the postcode), the 2050s climate view, surface-water and planning flood zones at your building, exact recorded-flood distances, year-by-year warning charts, watercourses including culverted streams, an insurance outlook with the Flood Re rules, and a printable document with every dataset receipt — start with the free preview, unlock for £19.

Flood risk at nearby postcodes

PO17 5AJ up to High PO17 5AZ up to High PO17 5DD up to High PO17 5DE up to High PO17 5DF up to Low PO17 5JE up to Medium PO17 5JH up to Medium PO17 5LL up to Medium PO17 5NB up to Low PO17 5ND up to High PO17 5NW up to Medium PO17 5PX up to Low

At-risk postcodes near PO17 5HE — all in the PO17 district.

© Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064. Recorded Flood Outlines and warning history © Environment Agency copyright and/or database right 2025. Storm-overflow figures: EA Event Duration Monitoring. Flood defences © Environment Agency (OGL v3). This page summarises public area-level data — it is not a flood-risk survey and not a substitute for the official GOV.UK service. All data sources & licences. More postcodes: the PO17 district.