Flood Risk Assessment for Planning Permission: A Complete Guide

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Quick Answer

A Flood Risk Assessment (FRA) for planning is a crucial report that evaluates the potential flood risks associated with a proposed development site. Syntegra Group explains that this assessment is essential to ensure new developments are safe from flooding, do not increase flood risk elsewhere, and comply with national planning policies. The FRA identifies all potential sources of flooding, assesses the level of risk, and proposes appropriate mitigation measures to make the development acceptable for planning permission.

A flood risk assessment is required in all areas at risk of flooding. In these areas the planning permission is not given without a flood risk assessment study. Furthermore, it is also important in order to maintain and insure existing buildings.

The UK National Planning Policy Framework (NPPF) considers the Flood Risk Assessment (FRA) as an essential part of the planning application. Furthermore, the Environmental Agency studies flood and topographic levels on a site establishing that in base of the Flood Risk Regulations, flood risk management plans have to be produced and published by December 2015. These have to be produced for the whole of England and Wales. The flooding covered regards main rivers, sea and reservoirs.

The flood risk assessments have to be produced by Risk Management Authorities (RMAs) working in partnership and contributing together to the development of the plans. The planning process allows Authorities to understand the risks linked to flooding and individuate priority in accordance with the communities in order to understand the risks.

The CSH in Category 4: Surface Water Run-off Flood Risk is defined as an expression of the combination of flood probability and the magnitude of the potential consequences of the flood. A Flood Risk Assessment (FRA) has to be prepared as expressed in PPS25 Development and Flood Risk: Practice Guide (available from www.communities.gov.uk).

In accordance with BREEAM a site specific Flood Risk Assessment (FRA) confirms  there is a low risk of flooding in a site. Furthermore, it specifies the development is appropriately flood resilient and resistant from all flooding sources.

Syntegra Consulting is a leading energy consulting company in the UK – for further information about flood risk assessment, please telephone +44 (0) 845 0091625 or    e-mail: mail@syntegra-epc.co.uk.

 

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Frequently Asked Questions

1 When is a Flood Risk Assessment (FRA) typically required for a planning application?

A Flood Risk Assessment is generally required for planning applications when a proposed development is located in an area identified as having flood risk, or when it exceeds specific size thresholds. It ensures that potential flood risks to and from the development are properly understood and managed in line with planning policy.

2 What does a Flood Risk Assessment involve?

A Flood Risk Assessment involves evaluating potential flood sources, assessing the risk to a proposed development, and recommending appropriate mitigation measures. This often includes hydrological analysis, hydraulic modeling, and the development of sustainable drainage systems (SUDs) to manage surface water effectively.

3 How does a Flood Risk Assessment contribute to planning compliance?

A Flood Risk Assessment is crucial for demonstrating that a development proposal complies with national and local planning policies related to flood risk. It provides the necessary evidence to planning authorities that flood risks have been adequately considered and addressed, facilitating the approval process for your project.

4 Can Syntegra Group assist with drainage design alongside a Flood Risk Assessment?

Yes, Syntegra Group offers comprehensive services including SUDs Design and Drainage Strategy and Below Ground Drainage Design. These services are often integral to a holistic flood risk management plan, ensuring effective surface water management and compliance with planning requirements for your development.