Brighton and Hove Flood Risk
Brighton and Hove has a High flood risk from rivers and the sea , with 0.7% of homes in a Medium or High band. The nearest gauge is 7.3 km away.
Brighton and Hove has 274,936 residents and 135,062 homes. Ranked 2212 of 7,114 in England for rivers and sea flood risk.
When Has Brighton and Hove Flooded Before?
The Environment Agency holds 1 recorded flood outlines covering Brighton and Hove, the most recent dated 11 October 1987.
Absence of a record is not evidence that a place has never flooded — the Environment Agency states that a lack of coverage does not mean an area has never flooded.
What Does Brighton and Hove's Flood Risk Classification Mean?
0.7% of postcodes in Brighton and Hove sit in Flood Zone 3, the planning band for land with a 1% or greater annual chance of river flooding or 0.5% or greater of sea flooding — and the map that draws it deliberately ignores flood defences.
The flood risk band for rivers and the sea is High , with 0.7% of homes in a Medium or High band. Unlike the Flood Zone, the band counts the defences that are actually in place, which is why the two can describe the same street differently and both be right.
Which Postcode Districts Cover Brighton and Hove?
Each district below is one postcode district that falls inside Brighton and Hove. The band is the one shared by most of that district's postcodes, so it describes the district rather than a single street — enter a full postcode in the checker for one address. A district can cover more than one town, and the district pages linked from the checker are keyed to the town that holds most of its postcodes.
| Postcode district | Postcodes here | Rivers and sea band | Surface water addresses |
|---|---|---|---|
| BN2 | 1,509 | Low | 4,599 |
| BN1 | 1,433 | Low | 4,347 |
| BN3 | 1,398 | Low | 5,926 |
| BN41 | 340 | High | 1,139 |
How Does Flood Risk Affect Insurance And Buying In Brighton and Hove?
A High flood risk band can affect the price, the excess and the availability of home insurance, and it is worth checking before you buy. Flood cover is normally part of standard home insurance, and insurers set their own prices.
How insurers price flood risk, what Flood Re covers, and what to do if a standard insurer declines.
The eight statutory conditions, with an eligibility checker that gives a real verdict.
Barriers, airbricks, pumps and non-return valves, ranked by what they protect against.
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