Flood Risk Assessments for Planning Applications

Expert flood risk assessments that secure planning approval and protect your development investment from flooding

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Secure Planning Approval with Expert Flood Risk Assessments

Planning applications on sites within or near flood zones face significant scrutiny from the Environment Agency and Local Planning Authorities. A professional Flood Risk Assessment (FRA) is essential to demonstrate your development is safe from flooding and won’t increase risk elsewhere.

Our Water Services Consultants identify site-specific flood risks from all sources including:

Tidal Flooding
Fluvial Flooding
Surface Water Flooding
Groundwater Risk

Additionally, we recommend practical mitigation measures that satisfy statutory requirements whilst maintaining development viability.

Early engagement prevents costly delays, planning objections, and design rework that can impact your project timeline and budget.

Why choose Lucion?

Planning Approval Success

Extensive knowledge of Environment Agency and Local Planning Authority requirements means we understand exactly what’s needed to avoid objections and secure consent, even on constrained sites.

Climate Change Compliance

We apply the latest EA climate change allowances by river basin district, ensuring your development meets current and future regulatory standards without costly surprises.

Time & Cost Efficiency

From initial screening to detailed hydraulic modelling, our staged allows you to make informed decisions early, reducing unnecessary expenditure and accelerating planning timescales.

Flood Risk Assessments (FRA)

Our Flood Risk Assessments support planning applications for new-build housing and development sites located within or near flood risk areas. Each FRA assesses flood sources, site constraints, and mitigation measures, providing practical recommendations that support planning approval while safeguarding future occupants and assets.

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Flood Risk Assessment FAQs

Flood Risk Assessments are required for developments within Flood Zones 2 and 3, or sites over 1 hectare in Flood Zone 1. If your site is near watercourses or has surface water flood risk, Local Planning Authorities may also request an assessment. We can conduct an initial screening to confirm requirements.

Timescales depend on site complexity and whether hydraulic modelling is required. A straightforward FRA typically takes 2-3 weeks, whilst sites requiring Environment Agency data requests and hydraulic modelling may need 6-8 weeks. Early engagement helps manage timescales effectively.

Need a quick view of your portfolio’s flood risks? Check out FLOODScreen, our tool for assessing hundreds of sites at speed, helping you identify and focus on your highest flood risk areas.

Click here to learn more about FLOODScreen

Development is often possible with appropriate mitigation. Our team identifies practical solutions including raising finished floor levels, flood-resistant construction, and flood compensation storage.

We work with you to balance flood protection with development viability.

Rachel Shepherd,Associate Director

Contact Rachel Shepherd

General enquiries:

Phone: +44 (0)345 5040 303
[email protected]

Supporting Development Projects Nationwide

View all case studies

Flood Risk Appraisal- Appledore Shipyard

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Drainage Strategy for Residential Development

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Environmental Due Diligence – Queen Elizabeth Olympic Park

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Assured, Trusted Flood and Drainage Consultancy

CIWEM Membership

Many of our Water Services Consultants are members of the Chartered Institute of Water and Environmental Management with several of our team holding Chartership status.

Chartered Institute of Ecology and Environmental Management

Lucion’s team of Ecologists undergo specialist training and maintain active membership with the Chartered Institute of Ecology and Environmental Management.

AGI Individual Membership

The Association For Geographic Information

Lucion Associate Member

Testimonials

Lucion Group successfully supported E4environment Ltd by conducting a Greenhouse Gas (GHG) assessment of anticipated operational emissions for a proposed project at Easton, Lincolnshire. The plans involved redeveloping a Wastewater Treatment Facility (WWTF) and installing an Anaerobic Digestion plant.

In response to the Finch vs. Surrey County Council court ruling in June 2024, Lincolnshire County Council issued a Section 25 request for additional scrutiny of GHG emissions before planning consent could be granted. Lucion Group Associate Consultant, Rob Dadzie, submitted a detailed GHG emissions assessment and clear report addressing the council’s concerns. His expertise and support ensured the final submission met the latest Environmental Impact Assessment requirements.

The contribution of Lucion Group and Rob Dadzie to the project team meant the project successfully satisfied the Local Authority’s conditions, enabling Council members to determine unanimous approval of the final planning application. Once operational, the site will process 120,000 tonnes of feedstock per year, generating 5MW of renewable biogas energy to supply on-site cold storage and other facilities.

Deb Cairns Director

Lucion Delta-Simons Ltd has advised Hermes for many years on a range of environmental issues. Their team hold an impressive depth of knowledge and experience, which added to their commercial understanding, makes Lucion Delta-Simons Ltd an invaluable member of our project team.

Hermes Real Estate Representative

We recently engaged Lucion Delta-Simons Ltd to help on our ESG and Carbon Reduction journey. To be honest, we didn’t know what we didn’t know, and the last 6 months have been an eye-opener and a great learning curve.

Taking us through this journey, Rob Molyneux and Rob Dadzie, have both been extremely professional, helpful and enthusiastic. They have been flexible and patient, making the journey to a positive ESG disclosure easier.

We are nearing the end of the scope of work, with the exception of our end-of-year GRI report, but I’m sure we will be back annually for ESG Performance Validations and Carbon Assessments.

The team have done a great job, and I look forward to continuing to work with you.

David Robinson HSE & ESG Director Innovo Build UAE