Protecting your development
against flooding
Why Choose Us?
Encon Associates offers expert Flood Risk Assessments and Drainage Design services to help developers, architects, and planning consultants comply with local and national planning regulations.
Understanding Flood Risk Assessments
What is a Flood Risk Assessment?
A Flood Risk Assessment (FRA) evaluates the potential risk of flooding on a development site, and assesses how the project might impact surrounding areas. It considers various sources of flooding, including rivers, surface water, groundwater, tidal surges, and drainage systems.
In the UK, FRAs are a planning requirement for developments in Flood Zones 2 and 3, and sites over one hectare in Flood Zone 1, as outlined by the National Planning Policy Framework (NPPF).
What is Drainage Design?
Drainage Design focuses on managing surface water runoff to prevent flooding and ensure efficient water management within a development. Sustainable Drainage Systems (SuDS) incorporate elements such as permeable paving, attenuation ponds, swales, and green roofs to control water flow and enhance biodiversity on-site. Effective drainage planning helps to mitigate flood risks and supports compliance with environmental regulations such as BREEAM.
Our Flood Risk Assessment services
The Encon Associates approach to Flood Risk Assessments
Our comprehensive Flood Risk Assessments are specifically designed to meet stringent Environment Agency, Lead Local Flood Authority (LLFA), and National Planning Policy Framework (NPPF) guidelines.
We begin by assessing fluvial (river), tidal, groundwater, and surface flood risks, and use this data to produce site-specific FRA reports. We will then provide advice on recommended flood mitigation and resilience strategies, such as raised floor levels and flood barriers, to ensure that your development will stand the test of time.
Drainage Design
We can also develop bespoke drainage solutions that align with SuDS principles and local planning requirements. We leverage advanced flood modelling and hydrological analysis to predict water flow and runoff scenarios. This information allows us to design efficient surface water and foul water drainage systems that connect with your existing infrastructure, such as green roofs, permeable paving, attenuation ponds, and swales. All our solutions comply with the Non-Statutory Technical Standards for SuDS and BREEAM Pol 03 criteria, making your project more likely to obtain planning permission.
We partner with organisations like yours
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We have been very pleased with the approach taken by Encon Associates and the quality of their output. Their expertise assisted in our recent achievement of a Code for Sustainable Homes Level 6.
Ross Crowcroft, Clegg Group -
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I can only say positive things about Encon Associates. They always endeavour to get out quality work within tight timescales. Mark is very approachable with any queries and is very knowledgeable in his field.
Ryan Fish, WCEC -
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Excellent service. Glenn was very informative and helpful, taking time to answer my questions regarding my barn conversion
Additional services
We offer a wide array of specialist services that complement our Flood Risk Assessment services and are designed to boost your project’s overall sustainability rating.
From Daylight Calculations and Tree Surveys to Traffic Assessments and Acoustic Reports, our team provides the technical expertise you need to achieve the highest environmental rating possible.
Want to gain environmental credits or need planning advice for your next project?
Call: 0115 987 55 99 or email:
Frequently asked questions about Flood Risk Assessments
Call: 01159 875 599 or email: