Flood Risk Assessments prepared to support planning submissions, satisfy validation requirements and define how flood risk and drainage constraints influence development layout and design.
Flood risk is rarely just a technical exercise. It directly influences site layout, finished levels, drainage strategy, developable area and abnormal cost.
Our Flood Risk Assessments are prepared with a clear understanding of how planners, Lead Local Flood Authorities and the Environment Agency review flood risk submissions.
We integrate flood considerations into the wider ground, drainage, and design narrative. Our evidence-led approach ensures flood mitigation is aligned with your drainage strategy from the outset, helping your scheme progress through planning without risk of late-stage redesigns, over-conditioning, or unnecessary engineering costs.
By aligning these elements, we protect long-term site value and support evolving climate expectations, keeping your scheme compliant and commercially realistic.
For project specific advice
Assessments are prepared in line with national guidance and local authority requirements.
Flood risk findings are linked directly to layout, finished levels, access, drainage and earthworks proposals.
Mitigation is scaled to actual risk and site context, avoiding generic or over-engineered solutions.
Flood risk and surface water management are considered together to provide a coherent technical approach.
A Flood Risk Assessment evaluates the probability and consequences of flooding affecting a site and determines how a development may influence flood risk elsewhere. It is a mandatory report required for developments in flood-prone areas or for major planning applications.
Far from just presenting data, a strong flood and drainage risk assessment establishes how flood risk shapes development form to ensure a project is safe, compliant, and buildable.
While every scope is tailored to the specific site and Flood Zone, our reporting provides a comprehensive evidence base for planning.
We provide specialist support at every stage to ensure your development remains viable, compliant, and buildable.
We identify high-level flood constraints before you commit to a site. By screening for red flags early, we help you understand abnormal costs and determine the true developable area before a layout is fixed.
We prepare evidence-led flood risk assessments specifically designed to satisfy the Environment Agency and LLFAs. Our goal is to secure a smooth validation process and provide the technical narrative needed for a positive determination.
We collaborate with your design team to integrate flood risk data into drainage strategies, earthworks, and finished floor levels, ensuring the mitigation is practical and cost-effective.
Our support continues after planning, as we refine detailed mitigation and resilience measures to help you discharge complex flood-related conditions, so you can move to construction phases without delay.
Assessment of site location, planning context and development proposals.
Review of flood datasets, historical records and climate change allowances.
Development of flood risk conclusions aligned with layout and drainage strategy, to prepare a planning ready Flood Risk Assessment.
Support responding to Environment Agency or planning officer comments. Free revisions included.
We provide the expertise to simplify complex challenges for faster approvals of tough planning requirements.
Still have any questions about flood risk assessments or planning?
An FRA is mandatory for most developments in Flood Zones 2 or 3, or for sites over 1 hectare in Flood Zone 1. It is also required where a site is at risk from surface water or groundwater flooding.
Flood Zone 2 represents a “medium probability” of flooding, whereas Flood Zone 3 is a “high probability” area. Each requires a different level of technical scrutiny and specific mitigation measures to pass planning.
Often, yes. By identifying flood constraints early, we determine your true developable area, required finished floor levels, and safe access routes, preventing costly redesigns after your planning submission.
Yes, we integrate flood risk and Sustainable Drainage Systems (SuDS) to create a single, non-conflicting technical strategy that satisfies both the Environment Agency and Local Lead Flood Authorities (LLFAs).
Yes. We provide ongoing support to address comments from regulators and planning officers. Our service includes free report revisions.
Yes. We regularly combine FRAs with SuDS strategy development and on-site infiltration testing to provide a complete water management package for your planning application.
