Flood Risk Assessments Guide

If you’re planning a development, submitting a planning application, or purchasing land in the UK, you may have been told you need a Flood Risk Assessment (FRA). But what exactly is included in one? How is it carried out, and who’s responsible for completing it?

We answer the most frequently asked questions about flood risk assessments to help you understand their importance and how to meet planning requirements with confidence.

What Is Included in a Flood Risk Assessment?

A Flood Risk Assessment is a detailed report that evaluates the potential for flooding on or near a specific site. It considers both the likelihood of flooding and the impact it could have on people, property, and infrastructure. A professional FRA will include:

• Site location and topography: including elevation data and proximity to rivers, drainage features, or floodplains

• Identification of flood sources: such as fluvial (rivers), pluvial (surface water), tidal, groundwater, sewer, or artificial sources

• Flood zone classification: based on Environment Agency flood maps

• Assessment of flood risk levels: including predicted depths and frequencies

• Impact of the proposed development: e.g., increase in impermeable surfaces or change in drainage

• Mitigation strategies: such as sustainable drainage systems (SuDS), raising finished floor levels, or flood-resistant construction

• Compliance with national and local planning policies: such as the National Planning Policy Framework (NPPF)

For higher-risk sites, an FRA may also include hydraulic modelling or detailed drainage analysis.

How Do You Conduct a Risk Assessment for a Flood?

At Elite Ecology, we follow a structured and evidence-based approach to conducting FRAs:

1. Desktop Study

We begin by gathering site-specific data, including topographic maps, Environment Agency flood zone data, historical flood records, and surface water risk layers.

2. Site Visit (if required)

For complex or high-risk sites, we may carry out a site visit to inspect the topography, watercourses, drainage systems, and any existing flood defences.

3. Risk Analysis

We assess all potential sources of flooding and how they might affect the proposed development. This includes calculating flood depths, flow paths, and any cumulative impacts.

4. Mitigation Planning

Where risk is identified, we provide tailored recommendations to reduce or manage the risk, ensuring the safety of future occupants and protecting the value of the property.

5. Reporting

A clear, well-structured report is produced, suitable for submission to the Local Planning Authority (LPA) and Environment Agency, if required.

How Much Does It Cost to Get a Flood Risk Assessment?

The cost of a Flood Risk Assessment depends on the size, location, and complexity of the site, as well as the level of detail required. At Elite Ecology, our pricing starts from £350, with packages typically including:

• A professionally written, planning-compliant report

• Quick turnaround to meet planning deadlines

• Optional site visit and bespoke drainage or mitigation advice

We’ll always provide a clear quote upfront, no hidden fees.

Who Completes a Flood Risk Assessment?

A Flood Risk Assessment should be completed by a qualified environmental consultant or hydrologist with expertise in flood modelling, drainage strategy, and planning policy. At Elite Ecology, our assessments are carried out by experienced professionals who:

• Understand UK planning and Environment Agency requirements

• Are familiar with Flood Zones, SuDS, and national/local flood risk policy

• Work directly with developers, architects, and planning consultants to integrate the FRA into your submission

• Provide trusted advice to residential, commercial, and industrial clients

  
  

We ensure every report is tailored, accurate, and aligned with your development goals.

Need a Flood Risk Assessment?

If your site is in a flood-prone area, or your local planning authority has requested an FRA, don’t wait for delays. Our team at Elite Ecology provides fast, affordable, and compliant assessments across the UK.

Call us today on 01782 308418

Email admin@eliteecology.co.uk