Does BN8 5BY flood?

Not in an at-risk area

BN8 5BY has no properties in any Environment Agency recorded flood-risk band. That is good news — but it is area-level and never proof a place cannot flood (surface-water and sewer flooding are assessed separately). See the at-risk postcodes in BN8 or get the full picture below.

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Get the full flood report for BN8 5BY — £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 BN8 5BY

FloodRadarProperty Flood-Risk Report
BN8 5BY
Moderate flood risk — investigate further

Because 4 recorded floods nearby; 333 official warnings since 2006.

A 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
···
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 BN8 5BY. 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 BN8 5BY

333
flood alerts & warnings within 10 km since 2012
71
of them full flood warnings or severe warnings
2026
most recent warning nearby (2026-02-14)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Jan 2009 07421J701FEO_Jan2009_Middle Ouse ~6.8 km
Jan 2009 07421J601FEO_Jan2009_LowerOuse_Lewes ~2.8 km
Oct 2000 07421J601FEO_OCT2000_Ouse_BarcombeMills ~1.0 km
Jan 1975 07421J601FEO_JAN1975_Barcombe_Mills ~0.5 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, 36 warnings nearby) · Dennis (2020, 9 warnings nearby) · Henk (2024, 9 warnings nearby) · Bella (2020, 4 warnings nearby)

The rivers that matter for BN8 5BY

GaugeRiverDistanceTypical highHighest on record
BARCOMBE GATES RL 0.4 km
Barcombe Gates River Ouse 0.5 km 5.70 m 6.60 m
Anchor Gates River Ouse 1.3 km 7.00 m 8.18 m
Bell Lane Grill Winterbourne Stream 5.8 km 5.60 m 5.39 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
Barcombe New S.t.w. Bevern Stream 3.2 km 105 (2024) 867
Neaves Lane Ringmer Wwtw Bulldog Sewer / Glynde Reach 3.3 km 104 (2024) 1,286
Cooksbridge Ceo North End Stream 3.7 km 28 (2024) 209
Court Road Wwps, Lewes The River Ouse 4.9 km 82 (2024) 81

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

Flood defences

16 mapped flood-defence assets within 500 m — nearest ~32 m (natural high ground, embankment, engineered 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 BN8 5BY — all in the BN8 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 BN8 district.