How to Check Flood Risk Before Buying a Property — Property Passport UK guide
Property Data

How to Check Flood Risk Before Buying a Property

Rivers, sea, and surface water: how to read national flood layers, what they miss, and how to brief insurers and solicitors.

Published: 18 Apr 2026 · Updated: 18 Apr 2026 · 10 min read

Property Passport UK

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Why insurers ask early

Flood history affects premiums and excesses. Screening before offer avoids surprises when you need cover to complete.

Map layers

River and sea flooding and surface water behave differently. Read the notes on each layer you consult.

Limits of maps

Maps are models. Site levels, drainage maintenance, and local schemes can change outcomes that a map alone cannot show.

Solicitors and searches

Environmental and drainage searches add detail your own map skim might miss. Use both.

Record what you found

If you own the home, store insurer correspondence and flood resilience work in your Property Passport for the next transaction.

Next steps on Property Passport UK

Run the address through [Property Search](/search), then explore the [Property Guides library](/guides). When you own or manage the home, [claim your Property Passport](/claim/start) and add Documents with dates and sources so permitted Stakeholders see a single coherent record.

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