A recent study by insurance giant Aviva has revealed that a significant proportion of new homes in England, specifically one in nine, are being constructed on land identified as being at risk of flooding. This concerning trend often occurs entirely within the parameters of current planning regulations, raising questions about the adequacy of the system in protecting future homeowners.
The investigation highlights a potential systemic issue where developers can proceed with building in vulnerable areas, with the long-term financial and emotional burden of flood damage ultimately falling upon the property owners. While developers may implement some flood mitigation measures, the inherent risk remains, impacting everything from insurance premiums to the future resale value of these properties.
The implications for the UK housing market are substantial. For first-time buyers, purchasing a home in a flood-risk area can lead to unexpected and escalating costs, potentially making homeownership less affordable in the long run. Existing homeowners in adjacent areas might also see their property values affected if new developments increase overall flood risk in their locality. Landlords, too, face higher insurance premiums and the prospect of significant repair costs if their rental properties are situated in flood-prone zones.
While specific house price data directly linking to flood-risk new builds is complex to isolate, the broader context of UK housing shows continued demand. According to Rightmove data, average asking prices remain high, with regional variations. For instance, the average asking price for a property in England was around £375,000 as of early 2024. However, properties in areas with a high flood risk can be more challenging to mortgage and insure, potentially limiting buyer pools and affecting future price growth, even if initial purchase prices appear competitive.
The current planning framework is designed to balance housing supply with environmental concerns. However, critics argue that the system may not be robust enough to adequately account for the escalating impacts of climate change and increased rainfall. This situation underscores the need for a re-evaluation of planning policies to ensure that new housing developments are not inadvertently creating future liabilities for residents and the public purse through increased flood defence expenditure.
This study brings into sharp focus the tension between the urgent need for more housing across the UK and the imperative to build resilient, sustainable communities. With initiatives like Help to Buy having supported many first-time buyers into homeownership, ensuring these homes are safe and insurable for the long term is paramount. Stamp duty land tax, a significant revenue generator for the Treasury, is also impacted by property transactions, and any factors that depress property values or sales volumes in certain areas could have broader economic implications.
Source: Aviva