UK Flood Risk and Mortgages What the FCA Findings Mean for Buyers

A cheaper asking price can lose its appeal if the insurance is difficult to arrange. New FCA research, published on 26 October 2026 and covered by the Evening Standard, gives buyers in England a reason to put flood checks alongside their mortgage budget—not leave them until the paperwork is nearly finished.

What the new figures actually measure

The FCA estimates that 15.5% of mortgage contracts in England are linked to postcodes with some flood exposure. It matches postcode centre points to flood datasets; it does not assess each house. Crucially, the publication introduces no new regulatory requirements or supervisory expectations. A postcode appearing in the research is therefore not an announcement that its mortgages will be refused.

Its surface-water table offers a useful contrast: 6.5% of postcode centre points in Essex fall in the high-risk band, compared with 1.1% in Devon and 0.8% in Cornwall and the Isles of Scilly. These are shares of mapped locations, not annual flooding probabilities or shares of damaged homes. They suggest where different follow-up questions may matter; they do not establish which individual home is safer.

The financial link is insurance, value and future options

The FCA’s wider climate-resilience guidance explains the connection: physical risks can affect property values and insurability, which may influence access to mortgage finance. Some households could face more expensive or less available cover; borrowers may also have fewer options when remortgaging or moving. These are possible channels of impact, not a forecast of a particular buyer’s premium or interest rate.

Our practical reading is to compare the financing of the property, not just the advertised loan payment. Ask for an insurance quotation for the address and discuss any relevant cover restrictions with your broker or lender. Record the premium, excess and exclusions separately. A lower purchase price and a higher recurring insurance cost belong in the same comparison; neither figure alone settles whether the home fits your budget.

How to compare two candidate homes

Use the official England long-term flood-risk service for each location. It provides area information about flooding from rivers and the sea, and groundwater where data is available, as well as how climate change might affect risk and possible causes of flooding. It does not assess an individual property’s chance of flooding or cover sources such as blocked drains and burst pipes, so treat the result as a starting point for property-specific enquiries.

Make a short comparison sheet with the same fields for both properties: address, map result by flood type, questions about previous flooding, insurance quotation and any unanswered property enquiries. This is our suggested decision tool, not a government rating system. A lower regional figure can help frame your search, but the address-level enquiries should still be completed before you call a candidate the better choice.

What to do before committing

GOV.UK’s buying guidance for England and Wales says buyers arrange and pay for searches and surveys, and that an offer is not legally binding until contracts are exchanged. Raise the flood-related questions while those investigations are being organised. Ask your conveyancer which enquiries address the specific uncertainty, rather than assuming the regional research or a general survey answers every question.

Bring three items to that conversation: the location’s map result, the insurance quotation and the unresolved question about the property. Ask what evidence could resolve that question and whether anything further is needed before exchange. The purpose is a usable answer for this purchase—not a folder of alarming headlines. For homes outside England, use the relevant nation’s flood service and buying guidance.