Flood Risk and Drainage - Flood Risk Assessments


M-EC has vast experience preparing Flood Risk Assessments to support Planning Applications for residential, commercial and industrial schemes.

Our portfolio ranges from schemes of a few dwellings to major large-scale developments and industrial estates.


Our expert team have developed the ‘first-time-right’ approach, which minimises comments from water Risk Management Authorities and decreases waiting times for our clients. Our experience covers various stages of the planning process, including Outline Planning and Full Planning applications, Reserved Matters and Discharge of Conditions. 

The complexity of our work ranges from Flood Risk Assessments for sites within Flood Zone 1 to complex applications within Flood Zone 3, with the requirement for detailed fluvial hydraulic modelling and development-specific mitigation measures.

Our aim in any Flood Risk Assessment is to keep users safe from flooding and prevent the development from exacerbating flood risk to the wider area, in line with the National Planning Policy Framework.

We aim to get the best possible outcome for our clients, so our work is not limited to technical expertise; it extends to an active liaison with the various local water Risk Management Authorities throughout the planning process – the Environment Agency, Natural Resource Wales, Lead Local Flood Authority, Sewerage Undertakers and Local Planning Authorities.


When do you need a Flood Risk Assessment?

The Environment Agency states that you need an FRA if:

  • Your site is located within In Flood Zone 2 or 3, including any minor developments and changes in land use
  • Your site is more than 1 hectare (ha) in Flood Zone 1
  • Your site is less than 1 ha in flood zone 1, including a change of use in development type to a more vulnerable class (for example, from commercial to residential), where they could be affected by sources of flooding other than rivers and the sea (for example surface water drains, reservoirs)
  • Your site is in an area within flood zone 1, which has critical drainage problems as notified by the Environment Agency


Case Studies



Terra Strategic ltd

Hybrid Planning application for 300 dwellings & care home.

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Richborough Estates

Residential development of up to 550 dwellings & infrastructure.

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Marston Lane

Owl Homes

Proposed residential development of up to 18 dwellings.

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For more information about our flood risk assessments, contact:

  Joao Gil


  01530 264753