Record UK Flood Insurance Claims in 2024 – Rising Costs and Risks

Flooding Costs Soar as UK Faces Increasing Climate Risks

The Association of British Insurers (ABI) has announced that 2024 was the UK’s costliest year on record for flood insurance claims, with payouts exceeding £650 million. This alarming figure highlights the increasing frequency and severity of extreme weather events, prompting fresh calls for urgent investment in flood resilience measures.

The surge in claims was driven by a series of severe storms, including Storms Babet, Ciarán, and Henk, which left thousands of homes and businesses underwater. In total, over 38,000 flood-related insurance claims were made, covering damage to properties, vehicles, and businesses. Insured losses from these three storms alone topped £560 million, exceeding previous records set during the winter of 2015–16, when Storms Desmond, Eva, and Frank caused widespread devastation.

The Growing Impact of Extreme Weather on UK Flood Risk

The latest figures reinforce concerns that the UK is becoming increasingly vulnerable to extreme weather, with flood risk rising due to climate change, urban expansion, and inadequate drainage infrastructure. The ABI has called for a more proactive approach to flood risk management, warning that failure to act will leave communities and businesses facing mounting losses.

Mark Shepherd, Head of General Insurance Policy at the ABI, said:

Calls for Greater Flood Resilience in the UK

The ABI’s report aligns with growing pressure from flood risk professionals, local authorities, and environmental groups urging greater investment in flood resilience. Key areas of focus include:

• Increased funding for flood defences – Long-term, stable government investment in flood resilience to protect vulnerable communities. The recent £2 billion boost for flood defences is a positive step, but experts argue that consistent funding is needed to address long-term challenges.
• More intelligent and effective planning regulations – Avoiding development in flood-prone areas and ensuring all new buildings incorporate flood resilience measures. The introduction of NaFRA2, the updated national flood risk assessment tool, offers better insights into risk mapping and should be used to inform future planning policies.
• Better property-level adaptation – Encouraging the use of flood-resistant doors, raised electrical sockets, and permeable landscaping.
• Improved water management infrastructure – Expanding SuDS (Sustainable Drainage Systems) and natural flood management approaches to reduce surface water runoff.
• Enhanced Flood Warning Systems – Improving early warning alerts to give communities more time to prepare and mitigate damage.

The Need for Long-Term Investment in UK Flood Defences

Recent research commissioned by Flood Re, a joint initiative between the UK government and the insurance industry, highlights the importance of sustained investment in flood defences. According to the study conducted by flood risk modelling firm Fathom, existing flood protection infrastructure prevents approximately £1.15 billion in damage to residential properties annually. When considering businesses, industrial sites, and other properties, the total savings exceed £2 billion each year.

However, one in four UK properties remains at risk of flooding. Without current flood defences, annual losses to households would be nearly three times higher. Moreover, projections indicate that by 2069, the number of properties vulnerable to river and coastal flooding could increase by 27%, rising from 2.4 million to 3.1 million.

Dermot Kehoe, Director of Communications and Transition at Flood Re, emphasised the necessity of long-term investment, stating:

Currently, the government has committed £2.65 billion over the next two years for flood defences. However, insurers and flood risk professionals are calling for an annual investment of £1 billion from 2026 onwards to address the escalating challenges posed by climate change.

The Impact of Flooding on UK Households and Businesses

The financial burden of flooding extends beyond immediate damages. The disruption can displace families for months, lead to business closures, and create long-term economic instability in affected regions. Businesses in high-risk areas often struggle to obtain affordable flood insurance, further exacerbating financial uncertainty.

Additionally, insurers are facing increased pressures as climate-related losses rise, which in turn affects insurance pricing. With flood insurance premiums expected to increase in high-risk areas, many industry experts stress the urgency of proactive adaptation measures to lessen future risks.

The Role of Local Authorities and Developers in Flood Prevention

At the policy level, local authorities and property developers are under pressure to integrate more robust flood mitigation strategies into urban planning. While government initiatives such as the Flood Re scheme have improved insurance accessibility for high-risk properties, further systemic changes are needed. This includes enforcing SuDS compliance in all new developments and investing in natural flood management solutions to alleviate surface water buildup.

The UK’s housing expansion plans must also take flood risk into account. Large-scale development in high-risk areas, as highlighted in our recent article on UK Housing Plans and Flood Risk, could significantly increase future insurance claims and economic losses. Balancing housing demand with resilient planning is critical to preventing further flood-related crises.

A Critical Moment for UK Flood Risk Management

Jackie Stone, Director at Unda, emphasised the need for a holistic approach to flood resilience:

The ABI’s announcement is a clear signal that flood risk must remain a top priority for policymakers, businesses, and homeowners alike. As climate change drives more extreme rainfall events, the UK must invest in both infrastructure resilience and community preparedness to avoid even greater financial and social costs in the future.

As flood risk consultants, Unda has seen first-hand the impact that poor planning and inadequate drainage solutions can have on communities. While insurers continue to provide crucial support in the aftermath of flooding, long-term resilience measures—ranging from better urban planning to property-level adaptations—are essential to breaking the cycle of damage and repair.

With climate-driven extreme weather set to become more frequent, the challenge is clear: act now, or face escalating costs and disruption in the years ahead.