Does GU12 4TX flood?

Aldershot, Hampshire

Up to Low likelihood

Properties in GU12 4TX 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%160
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 GU12 4TX

The ground here sits at about 70 m above sea level and falls 15 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west-south-west, 13.0 m higher.

Shaded relief map of the ground around GU124TX, computed from Environment Agency LiDAR. The ground here sits at about 70 m above sea level and falls 15 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west-south-west, 13.0 m higher.
Shaded relief of the bare ground within about 400 m of GU12 4TX, 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 GU12 4TX — £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 GU12 4TX

FloodRadarProperty Flood-Risk Report
GU12 4TX
Moderate flood risk — investigate further

Because properties in the low likelihood band; 1 recorded flood nearby; 26 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 GU12 4TX. 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 GU12 4TX

26
flood alerts & warnings within 10 km since 2013
23
of them full flood warnings or severe warnings
2026
most recent warning nearby (2026-01-27)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Jan 1968 06SeptemberAutumn1968 ~0.6 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, 7 warnings nearby) · Dennis (2020, 3 warnings nearby) · Henk (2024, 2 warnings nearby) · Chandra (2026, 1 warnings nearby)

The rivers that matter for GU12 4TX

GaugeRiverDistanceTypical highHighest on record
Tongham River Blackwater 1.2 km 1.50 m 1.79 m
Cove Hazel Avenue Cove Brook 5.4 km 1.53 m 1.65 m
Farnborough River Blackwater 5.5 km 1.60 m 1.94 m
Tilford River Wey 7.4 km 1.40 m 2.09 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
Aldershot Town Wwtw Blackwater River 0.4 km 20 (2024) 76
N/a N/a 0.4 km 6 (2024) 27
Ash Vale Blackwater 3.5 km 23 (2024) 208
Farnham Farnham Park Tributary 4.3 km 52 (2024) 529

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

Flood defences

5 mapped flood-defence assets within 500 m — nearest ~259 m (wall, 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

At-risk postcodes near GU12 4TX — all in the GU12 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. Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. 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 GU12 district.