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Flood risk explained

Flood risk affects insurance, lending and resale. Here’s how to understand it — and check it — before you commit to a property.

Flood risk is one of the most important things to check before buying — it affects whether you can insure the property affordably, whether a lender will lend, and how easily you’ll be able to sell it later. The good news is that a lot of flood information is freely available, and a quick check up front can save real heartache.

The different types of flooding

Flood zones explained

In England, the Environment Agency groups land into flood zones. Zone 1 is the lowest risk (less than a 0.1% annual chance of river or sea flooding); Zones 2 and 3 carry progressively higher risk. A home in Zone 2 or 3 isn’t necessarily a bad buy, but it changes the questions you need to ask about insurance and defences.

Tip Surface-water flood risk can be high even when the river/sea zone is low. Check both — a property well away from any river can still sit in a surface-water hotspot.

Why it matters for insurance and mortgages

Properties in higher flood-risk areas can face higher insurance premiums, or struggle to get cover at all. The Flood Re scheme exists to help homeowners in high-risk areas access affordable insurance, but eligibility has conditions. Lenders also take flood risk into account, so a serious risk can affect whether — and how much — they’ll lend.

How to check

The official Environment Agency flood map is free to use and is the authoritative source. A MoveWizard report folds flood and wider environmental risk into your property’s overall picture so you see it alongside everything else that matters — and if the risk looks significant, that’s your cue to get a specialist flood report or factor insurance costs into your offer before you commit.

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Frequently asked questions

How do I check a property’s flood risk?

The Environment Agency’s flood map for England is free and authoritative. A MoveWizard report also folds flood and environmental risk into the property’s overall picture so you see it in context.

Can I get insurance on a high flood-risk home?

Often yes — the Flood Re scheme helps homeowners in high-risk areas access affordable cover, though eligibility has conditions. Premiums can be higher, so factor that into your offer.

Does flood risk affect getting a mortgage?

It can. Lenders take flood risk into account, so a significant risk may affect whether and how much they’ll lend, which is why it’s worth checking before you offer.