Up to Medium likelihood
Properties in B9 4BB 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 | Of which homes |
|---|---|---|---|
| High | greater than 3.3% | 0 | 0 |
| Medium | 1% – 3.3% | 2 | 0 |
| Low | 0.1% – 1% | 1 | 0 |
| Very low | below 0.1% | 0 | 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 here sits at about 102 m above sea level and falls 25 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-south-west, 2.7 m higher.
Because properties in the medium likelihood band; 532 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around B9 4BB. 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.
Warnings cover flood areas, not individual addresses.
Babet (2023, 16 warnings nearby) · Dennis (2020, 10 warnings nearby) · Henk (2024, 7 warnings nearby) · Darragh (2024, 7 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Calthorpe Park | River Rea | 2.4 km | 0.42 m | 2.50 m |
| Brookvale Road | River Tame | 4.1 km | 2.00 m | 3.65 m |
| Selly Park | River Rea | 5.4 km | 1.10 m | 1.82 m |
| Perry Park | River Tame | 5.6 km | 0.87 m | 3.39 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
| Overflow | Discharges into | Distance | Spills | Hours |
|---|---|---|---|---|
| Kingston Road | River Rea | 0.2 km | 0 (2024) | 0 |
| Small Hth - Glovers Rd-oakley Rd So | River Rea | 0.2 km | 0 (2024) | 0 |
| Lawden Road Cso | River Rea | 0.2 km | 11 (2024) | 4 |
| Small Heath - Glovers Road Cso | River Rea | 0.2 km | 0 (2024) | 0 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
11 mapped flood-defence assets within 500 m — nearest ~158 m (engineered high ground). Defences reduce risk, never remove it.
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.
At-risk postcodes near B9 4BB — all in the B9 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 B9 district.