BA1 Flood Risk
In postcode district BA1 (Bath and North East Somerset), 1,288 of 26,378 properties (4.9%) are in areas at high or medium risk of flooding from rivers and the sea — at least a 1 in 100 chance in any year — per Environment Agency data updated 6 July 2026; that is the 101st highest count of 2,181 districts in England.
By bandProperties in BA1 by flood-risk band
| Risk band | Chance of flooding each year | All properties | Homes |
|---|---|---|---|
| High | 3.3% (1 in 30) or greater chance in any year | 307 | 236 |
| Medium | between 1% and 3.3% (1 in 100 to 1 in 30) chance in any year | 981 | 775 |
| Low | between 0.1% and 1% (1 in 1,000 to 1 in 100) chance in any year | 2,132 | 1,382 |
| Very low | less than 0.1% (1 in 1,000) chance in any year | 4 | 1 |
1,011 of the high- or medium-risk properties are homes and 233 are non-residential (shops, offices, farms, public buildings); the rest are unclassified. By share, BA1 ranks 235th of 2,084 districts with at least 500 properties.
Postcode sectorsWhere in BA1 the risk sits
| Sector | Properties | High | Medium | Low | Very low | High + medium share |
|---|---|---|---|---|---|---|
| BA1 0 | 1 | 0 | 0 | 0 | 0 | 0.0% |
| BA1 1 | 2,319 | 0 | 186 | 624 | 3 | 8.0% |
| BA1 2 | 4,869 | 0 | 101 | 583 | 0 | 2.1% |
| BA1 3 | 3,795 | 77 | 166 | 561 | 0 | 6.4% |
| BA1 4 | 2,806 | 46 | 9 | 43 | 0 | 2.0% |
| BA1 5 | 3,489 | 3 | 41 | 7 | 0 | 1.3% |
| BA1 6 | 4,371 | 65 | 450 | 164 | 0 | 11.8% |
| BA1 7 | 2,969 | 80 | 21 | 70 | 1 | 3.4% |
| BA1 8 | 832 | 34 | 4 | 77 | 0 | 4.6% |
| BA1 9 | 927 | 2 | 3 | 3 | 0 | 0.5% |
Recorded floodsPast floods mapped near BA1
The Environment Agency has mapped flood outlines on 19 dates near BA1 since 1894; the most recent started on 3 Jan 2014.
| Started | Place / name in the record | Source of flooding | Cause |
|---|---|---|---|
| 3 Jan 2014 | Bathwick to | Not recorded | Not recorded |
| 29 Dec 2013 | Bath to | Main river | Channel capacity exceeded (no raised defences) |
| 25 Dec 2013 | Bath to | Main river | Channel capacity exceeded (no raised defences) |
| 24 Dec 2013 | Bath to 7 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 25 Nov 2012 | Bath | Drainage | Groundwater/high water table |
| 24 Nov 2012 | Bath | Drainage | Local drainage/surface water |
| 23 Nov 2012 – 24 Nov 2012 | Bathampton 2 outlines | Main river, drainage | Channel capacity exceeded (no raised defences) |
| 22 Nov 2012 – 23 Nov 2012 | Bathampton | Main river | Channel capacity exceeded (no raised defences) |
| 21 Nov 2012 | Bath | Drainage | Groundwater/high water table |
| 4 Nov 2012 – 22 Nov 2012 | Bath 2 outlines | Main river, drainage | Channel capacity exceeded (no raised defences) |
| 10 Feb 2009 | North Wessex 3 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 30 Oct 2000 – 31 Oct 2000 | By Brook Bathford Mill 2 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 19 Jan 1999 – 22 Jan 1999 | Avon Bathampton 4 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 28 Jan 1986 – 29 Jan 1986 | Avon Bathampton | Main river | Channel capacity exceeded (no raised defences) |
| 24 Dec 1985 – 26 Dec 1985 | Avon Bathampton | Main river | Channel capacity exceeded (no raised defences) |
| 4 Dec 1960 – 5 Dec 1960 | Bath west Brassmills 13 outlines | Main river | Channel capacity exceeded (no raised defences) |
| 3 May 1932 – 31 May 1932 | ByBrook Bathford | Main river | Channel capacity exceeded (no raised defences) |
| 1 Jan 1925 | ByBrook Bathford Batheaston | Main river | Channel capacity exceeded (no raised defences) |
| 12 Nov 1894 – 14 Nov 1894 | Avon Bath | Main river | Channel capacity exceeded (no raised defences) |
What this page shows, and what it misses
The Environment Agency's count of properties in each postcode that sit in areas of land at very low, low, medium or high risk of flooding from rivers and the sea, allowing for flood defences and their condition, added up here by postcode district and local authority. Every property in England is counted once, so the share is of all properties in the area.
It misses: surface water (heavy rain), groundwater, sewer and reservoir flooding; Wales, Scotland and Northern Ireland; and anything about a single building. A band describes the land a property stands on, not its floor level or flood protection, so it is not a forecast for any one home. Past floods come from the EA's Recorded Flood Outlines and are placed in the postcode district whose centre is nearest (within 12 km), so a flood near a boundary can be listed under a neighbour. Older records are patchy, and a flood with no outline is not listed.
Local authorities in BA1
- Bath and North East Somerset — 26,284 properties, 1,288 at high or medium risk
- South Gloucestershire — 94 properties, 0 at high or medium risk
Parishes in BA1: Batheaston, Bathford, Bitton, Charlcombe, Cold Ashton, Kelston, Marshfield, North Stoke, St. Catherine, Swainswick.
If you live in BA1
- Check your own address on gov.uk; it also covers surface water.
- Sign up for free flood warnings by phone, text or email: gov.uk/get-flood-warnings.
- See what is in force now on flood warnings UK, and river levels. Floodline: 0345 988 1188.
- Never walk or drive through flood water: why shallow water kills.
Nearby districts
FAQQuestions people ask
Is BA1 at risk of flooding?
In postcode district BA1 (Bath and North East Somerset), 1,288 of 26,378 properties (4.9%) are in areas at high or medium risk of flooding from rivers and the sea — at least a 1 in 100 chance in any year — per Environment Agency data updated 6 July 2026; that is the 101st highest count of 2,181 districts in England.
How many homes in BA1 are at high risk of flooding?
236 homes (residential properties) in BA1 are in areas at high risk (3.3% or greater chance each year) and 775 at medium risk, out of 21,308 homes, per Environment Agency data updated 6 July 2026. This counts rivers and the sea only, not surface water.
Has BA1 flooded before?
The Environment Agency has mapped flood outlines on 19 dates near BA1 since 1894; the most recent started on 3 Jan 2014.
How do I check the flood risk for my own address in BA1?
Use the government's long-term flood risk checker (check-long-term-flood-risk.service.gov.uk): it shows rivers and the sea, surface water, reservoirs and groundwater for one address. District figures here are totals and cannot tell you about a single home.
Flood risk counts: Environment Agency, Risk of Flooding from Rivers and Sea – Postcodes in Areas at Risk and Recorded Flood Outlines, used under the Open Government Licence v3.0. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this information 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.
Local authority of each postcode: Office for National Statistics postcode lookup (May 2026), licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. District centres and place names: postcodes.io (ONS/OS open data). Totals, ranks and grouping are Global Incident Tracker's own calculations; the Environment Agency does not endorse them.