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77% of Buyers Would Reject Flood-Risk Homes, Survey Finds
Willow Private Finance · Market Intelligence

Willow Market Intelligence: Residential Property

Understand how flood searches, insurance terms and property assessments could affect your mortgage options.

Residential Property / Mortgage Security / Property Due Diligence

77% of Buyers Would Rule Out Flood-Risk Homes, Survey Finds

Research among 1,000 UK homebuyers highlights the threat to sales when flood concerns emerge, while lenders make their own decisions about the property.

More than three-quarters of homebuyers surveyed by Lyons Bowe Solicitors say they would rule out a property in a flood-risk area, highlighting a potential obstacle to sales that can emerge after a price has been agreed.

The research, reported by The Intermediary on 9 November, asked 1,000 UK homebuyers about their attitudes. Half said they would withdraw if their conveyancer identified flood risk, while 59% would expect a substantial discount against an otherwise comparable home.

For sellers, the findings point to the importance of addressing buyers’ questions early. For purchasers, they raise a separate financing issue: even when the price and monthly repayments are affordable, the property must still satisfy the mortgage lender.

A flood-risk label needs a closer look

A home near a river is an obvious candidate for further investigation, but flood exposure can also arise from surface water and other sources. An inland location is not sufficient reassurance on its own.

The government’s long-term flood-risk service covers areas in England and explicitly distinguishes that information from the likelihood of an individual property flooding. Its results can start an investigation; they cannot settle every question about a particular home.

The useful details concern the source and severity of the risk, any previous flooding and the protection available to that building. A specialist assessment may help explain findings that a broad area label leaves unresolved.

This matters in negotiations. A buyer needs enough information to decide whether the exposure is acceptable, while a seller needs evidence to answer concerns rather than relying on the property having remained dry during their ownership.

The lender may have concerns before a valuation takes place

Flood risk can affect a mortgage application early. Nationwide’s published valuation guidance says that, in some cases, it can decide at the decision-in-principle stage that it is unwilling to lend on a property, giving a known flood area as an example.

Other cases require closer investigation. NatWest’s guidance tells valuers to assess environmental issues, including flooding, individually and allows for specialist reports to support that assessment.

The implications extend beyond whether a household can afford the loan. The lender also needs an acceptable property as security. An income-based borrowing estimate, or an insurance quotation, does not by itself establish that the home meets its requirements.

For owners remortgaging, an existing mortgage is not a guarantee that a new lender will reach the same decision. Any known concerns should be raised while there is still time to investigate the available options.

Insurance is part of the purchase calculation

MoneyHelper explains that flood protection is normally included in buildings insurance, but households in higher-risk areas can encounter expensive quotations or difficulty obtaining cover.

The practical comparison involves more than the annual premium. The flood excess, exclusions and provision for alternative accommodation can determine how much financial exposure remains with the owner after an incident.

Flood Re helps participating insurers provide cover for eligible homes. Its conditions include a pre-2009 construction requirement, alongside restrictions concerning the property and its use. Buyers cannot assume that every home, new build or rental investment qualifies.

Where standard quotations prove difficult, the BIBA Flood Insurance Directory provides access to specialist providers, including those dealing with properties outside Flood Re. Finding cover remains separate from obtaining the lender’s approval.

A discount can change the price without resolving the risk

The survey’s finding that 59% of respondents would expect a significant discount shows how flood concerns can enter negotiations. It does not establish the size of any discount achieved in the market.

For a buyer, a lower price may leave more cash available for insurance, resilience measures or reserves. But the saving needs to be considered against the possible disruption of flooding and the property’s future saleability.

A lender’s valuation may also differ from the agreed price. If that reduces the amount available to borrow, the buyer could need more cash despite having negotiated a reduction.

Bring the findings into the mortgage discussion early

A flood concern does not automatically end a purchase. It does change the information needed before buyer, insurer and lender can reach their decisions.

The conveyancer’s findings, any specialist assessment and the proposed insurance terms should be considered together. This is particularly useful where a rural, riverside or coastal property has features that a simple postcode check cannot fully explain.

Willow can assess the mortgage options alongside that evidence and the buyer’s wider finances. For sellers and estate agents, dealing with the issue early offers a better chance of establishing a workable transaction before the chain becomes dependent on it.

Has a flood search raised questions about your mortgage?

Willow can review the proposed borrowing alongside the flood report, insurance position and lender requirements. Bring those findings into the mortgage discussion before relying on a purchase price or anticipated remortgage.

Explore Your Mortgage Options

Frequently asked questions

Does flood risk automatically mean a mortgage will be refused?

No. Lenders assess the property under their own criteria, including valuation, marketability and insurance. Some properties may be declined, while others can be considered after further evidence.

Does the 77% figure describe actual failed purchases?

No. It records what surveyed homebuyers said they would consider buying. The study does not establish that 77% of transactions or mortgage applications involving flood-risk homes fail.

Can a home face flood risk even if it is away from a river?

Yes. Surface water and other sources can create exposure away from rivers and the coast. The relevant search should identify the type and extent of risk around the property.

Will Flood Re cover any property in a flood-risk area?

No. Eligibility is restricted, including a requirement for the home to have been built before 2009. Other conditions apply, and insurers decide whether to offer a policy and use Flood Re.

What information helps a mortgage review where flooding is a concern?

Useful evidence includes the flood-search findings, disclosed flooding history, any specialist assessment or resilience work, and proposed insurance cover, exclusions and excess. The lender decides what it needs for the particular case.

About the author

Wesley Ranger is a director of Willow Private Finance. His work covers residential mortgages and specialist property finance, including complex income, higher-value borrowing and remortgages.

Residential Mortgages · Property Assessment

Review the Mortgage Options for Your Property

Address flood concerns before they become a late-stage funding problem.

Tell us about the property, purchase or remortgage plans, and any flood findings already identified. We can assess suitable lending options while your conveyancer and insurance specialist establish the property-specific risks and cover.

A workable purchase needs the price, insurance and mortgage to fit the same property.

Important Notice

This article reflects sources checked on 10 November 2026. The Lyons Bowe figures describe stated intentions among 1,000 UK homebuyers, not actual transaction withdrawals or lender rejection rates. The government flood-checking service linked here covers England. Flood exposure, insurance terms and mortgage eligibility require individual assessment. This is general information, not a property-specific flood assessment, insurance recommendation or mortgage offer.

Your property may be repossessed if you do not keep up repayments on a mortgage or other loan secured on it.

Full Sources

Sources reviewed on 10 November 2026. Mortgage implications and commentary are Willow’s analysis.

The Intermediary: Lyons Bowe homebuyer flood-risk research

Published 9 November 2026. Reports the 1,000-person survey and the 77%, 50% and 59% findings on buyer intentions.

https://theintermediary.co.uk/2026/11/77-of-homebuyers-would-refuse-to-buy-a-property-in-a-flood-risk-area-study-finds/

GOV.UK: Check the long-term flood risk for an area in England

Explains the service’s coverage and its limitation: an area assessment does not establish the probability of an individual property flooding.

https://www.gov.uk/check-long-term-flood-risk

Nationwide for Intermediaries: Valuation policy and fees

Property decision at DIP section explains that a known flood area can prompt an early lending decline in some cases; checked 10 November 2026.

https://www.nationwide-intermediary.co.uk/lending-criteria/valuation

NatWest Intermediaries: Property and valuations

Environmental issues guidance covers individual assessment of flooding and possible specialist reports; checked 10 November 2026.

https://www.intermediary.natwest.com/property-and-valuations.html

MoneyHelper: Flood insurance and the right cover

Guidance on buildings insurance, flood cover, costs and the potential limits of alternative-accommodation cover.

https://www.moneyhelper.org.uk/en/everyday-money/insurance/flood-insurance-getting-the-right-cover

Flood Re: Eligibility checker and participating insurers

Explains eligibility, including the pre-2009 requirement, and confirms that insurers decide whether to offer cover and use the scheme.

https://www.floodre.co.uk/find-an-insurer/

BIBA: Flood Insurance Directory

Route to specialist providers for households facing difficulty obtaining flood insurance, including properties outside Flood Re.

https://www.biba.org.uk/find-insurance/buildings-contents-flood-zone/