Defra Confirms £10.5bn Flood Defence Funding Overhaul
Estimated reading time 5 minutes
In April, Defra’s consultation proposing a major overhaul of England’s flood funding system was launched, aiming to simplify access to investment and accelerate protection for communities most at risk. That consultation has now concluded, and the government has confirmed that the new framework will take effect from April 2026, marking the biggest reform of flood defence funding in fifteen years.
The £10.5 billion national investment programme – announced on 14 October 2025 by the Department for Environment, Food & Rural Affairs (Defra) and the Environment Agency – will protect nearly 900,000 properties across England. It introduces new rules to speed up delivery, ring-fences funding for deprived areas, and places natural flood management on an equal footing with traditional defences.
A new funding model
Under the revised rules, all prioritised flood defence projects valued at £3 million or less will now be fully funded by central government. For larger projects, the first £3 million will be covered in full, with 90% of the remaining costs also funded — a substantial shift designed to reduce financial barriers for local authorities and smaller risk management authorities.
The changes replace a process that, as Defra acknowledged, was “complex and outdated”, often disadvantaging councils with limited resources and leaving deprived communities struggling to bring forward critical schemes.
Floods Minister Emma Hardy said the reforms would “rip up” the barriers that have slowed local recovery and economic growth:
“For too long, deprived towns and cities struggled to secure the vital money needed for flood defences due to a complicated and outdated process.
Our reforms will rip this up and help communities get back on their feet after floods – by unlocking economic growth, building new homes and creating new jobs. This government will be investing a record £10.5 billion into new flood defences and repairing existing assets to protect more people from the devastation of flooding.”
At least 20% of future investment will be set aside to support the most deprived areas over the next decade — a move aimed at “breaking the cycle” of towns repeatedly hit by flooding and slow recovery.
These commitments build on the wider UK infrastructure investment in flood defence, and follow record levels of flood insurance claims in 2024 which underscored the financial and social cost of inadequate protection.
Recognising maintenance and nature-based solutions
In a major policy shift, refurbishment of existing flood defences will now be treated on an equal basis with new projects, reflecting the growing strain on ageing infrastructure. This rebalancing follows widespread concern over the maintenance backlog identified during the consultation period.
The announcement also confirms the largest ever investment in natural flood management, supporting projects that deliver both flood resilience and environmental benefit. The Environment Agency noted that this broader funding model will enable greater support for property-level resilience, catchment-based interventions, and collaborative projects with partners such as farmers and wildlife groups.
These priorities align closely with the government’s commitment to sustainable water management and the recently adopted National Standards for Sustainable Drainage Systems (SuDS), which ensure that surface water is managed in ways that are both resilient and nature-positive.
They also reflect the increasing use of data-driven planning tools such as the updated Environment Agency Flood Map for Planning, which helps authorities identify and prioritise areas most in need of new or strengthened flood defences.
The focus on integrated water management mirrors the principles behind main river and ordinary watercourse management, riparian ownership responsibilities, and the evolving role of Lead Local Flood Authorities in planning. Together, these measures support a more joined-up approach to managing flood risk at catchment scale.
Driving resilience and renewal
The reforms form part of the government’s Plan for Change and national renewal agenda, seeking to align flood resilience with economic regeneration and housing growth. Caroline Douglass, Executive Director of Flood and Coastal Risk Management at the Environment Agency, described the reforms as “the biggest overhaul in 15 years” and emphasised that they will “boost resilience to a warming climate” and make every pound of taxpayer investment go further.
Since taking office, the government has reported completion of 151 flood schemes, protecting 24,000 homes and businesses, including the Pevensey Bay Sea Defences in East Sussex. A further £108 million has already been reprioritised for urgent maintenance works to arrest the decline of key assets — said to be inherited in their “worst condition on record”.
These investments are expected to strengthen the link between climate resilience and the government’s housing and regeneration objectives, reinforcing themes discussed in the wider debate on UK housing plans and flood risk.
What it means for local authorities and developers
For risk management authorities, the reforms promise faster and simpler access to government funding, particularly for smaller schemes that previously struggled to demonstrate partnership contributions. Developers and local planning authorities may also find that the new model strengthens the case for early investment in integrated SuDS and flood resilience measures within site design and planning applications.
The move towards recognising natural flood management and property resilience as fundable solutions is likely to increase opportunities for collaborative projects, with local authorities, developers, and environmental partners combining resources to deliver wider catchment benefits.
Supporting a proactive approach
These long-awaited changes should help to unlock locally-led resilience projects and modernise the way funding supports communities most in need.
Unda continues to assist local authorities, landowners, and developers in aligning their projects with the new funding priorities — from Flood Risk Assessments and Sequential Test evidence to detailed SuDS design and condition discharge.
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