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Does SP4 6NT flood?

Up to Low likelihood

Properties in SP4 6NT sit in the Environment Agency's Low 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 bandAnnual chancePropertiesOf which homes
Highgreater than 3.3%00
Medium1% – 3.3%00
Low0.1% – 1%10
Very lowbelow 0.1%00

Over a 25-year mortgage, a property in a low-likelihood area has a 2–22% chance of flooding at least once.

The ground around SP4 6NT

The ground here sits at about 59 m above sea level and falls 63 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north-west, 11.7 m higher.

Shaded relief map of the ground around SP46NT, computed from Environment Agency LiDAR. The ground here sits at about 59 m above sea level and falls 63 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north-west, 11.7 m higher.
Shaded relief of the bare ground within about 400 m of SP4 6NT, computed from the Environment Agency's published LiDAR terrain survey. The ring marks the postcode centre, not a property. This shows the shape of the land, not a flood map — it does not include drains, culverts, walls or kerbs, and the official likelihood band above is the authoritative figure. © Environment Agency copyright and/or database right 2022. All rights reserved.
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Get the full flood report for SP4 6NT — £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 SP4 6NT

FloodRadarProperty Flood-Risk Report
SP4 6NT
Moderate flood risk — investigate further

Because properties in the low likelihood band; 1 recorded flood nearby; 246 official warnings since 2006.

C 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 Low
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

The map above shows the real EA rivers & sea likelihood cells around SP4 6NT. 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 SP4 6NT

246
flood alerts & warnings within 10 km since 2011
84
of them full flood warnings or severe warnings
2026
most recent warning nearby (2026-03-30)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Jan 2014 Flood Extents_Winter 2013 to 2014 ~3.2 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, 18 warnings nearby) · Henk (2024, 9 warnings nearby) · Herminia (2025, 5 warnings nearby) · Bert (2024, 4 warnings nearby)

The rivers that matter for SP4 6NT

GaugeRiverDistanceTypical highHighest on record
Stoford Cross Groundwater Level 2.6 km 18.25 m 30.27 m
South Newton River Wylye 4.7 km 0.65 m 1.06 m
Amesbury River Avon 5.5 km 0.70 m 1.03 m
Salisbury Ashley Road River Avon 5.7 km 0.48 m 1.36 m

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

Storm overflows within 5 km

OverflowDischarges intoDistanceSpillsHours
Great Wishford Wrc River Wylye 4.8 km 109 (2024) 2,577
Hurdcott Ps River Bourne(s) 4.8 km 26 (2024) 498
Hurdcott Wastewater Treatment Works River Bourne 4.9 km 310 (2024) 6,466
Amesbury Stw Hampshire Avon (s) 5.0 km 2 (2024) 9

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

Flood defences

7 mapped flood-defence assets within 500 m — nearest ~69 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

SP4 6AQ up to Low SP4 6DJ up to Medium SP4 6DL up to Low SP4 6DN up to Medium SP4 6DQ up to High SP4 6ER up to High SP4 6ET up to High SP4 6EU up to Low SP4 6HD up to Medium SP4 6HR up to High SP4 6HW up to Low SP4 6JJ up to High

At-risk postcodes near SP4 6NT — all in the SP4 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 SP4 district.