FCA analysis indicates that almost one in seven mortgages in England is linked to a postcode with some degree of flood risk. Exposure differs sharply by region and flood type, while industry commentary warns that crude lending responses could exclude borrowers whose individual properties are more resilient than area-level data suggests.
For advisers, climate risk is becoming a practical part of the mortgage conversation, alongside loan-to-value and affordability. AI-enabled property and climate-data tools may help lenders assess localised risk, model scenarios and identify resilience measures, but outputs must be explainable and tested for unfair outcomes. Advisers should encourage clients to obtain appropriate survey, insurance and flood-risk evidence rather than relying solely on automated postcode assessments.