Flood Risk Assessment and Drainage Design for Panfield Lane, Essex

In England, the National Planning Policy Framework (NPPF) and Planning Practice Guidance (PPG) are the basis for development management decisions. In Wales, the Planning Policy Wales TAN 15, and in Scotland the Scottish Planning Policy (Sections 196-211) are the relevant party documents.

We are supporting Risk Management Authorities, Local Planning Authorities and Developers, to identify suitable development areas and design flood mitigation schemes for areas, where there may be some risk of flooding


Our clients, Mersea Homes Ltd and Hills Residential Construction Ltd, asked us to look at the land west of Panfield Lane in Braintree, Essex. It is a large strategic site, 44 hectares in size, with a mixed use of development. Our clients asked us to look into all sources of potential flooding that could impact the site.


To help with their requirements we conducted a Flood Risk Assessment (FRA). Surface and foul water drainage strategies were proposed which in turn supported their planning application. The image above shows the drainage design being implemented.


Benefits to the client included:

Outline detailed designs for surface and level water drainage

Early advice on changes in industry legislation, including SuDS standards and their implications on the development of the site (e.g. land take).

Want to know more?

Contact Olivier Saillofest for more information on this specific project. You can also find out more throughout our Flood and Water Management pages.

We offer a full range of flood risk management and drainage services including:

  • Flood risk assessments (FRA)
  • Flood consequence assessments (Wales)
  • Drainage design and impact assessments
  • Sustainable urban drainage systems (SuDS)
  • Site development planning
  • Flood resilient design
  • Flood plans and contingency planning
  • Flood warning services
  • Expert witness.

Our work is underpinned by our Hydraulic Modelling, Breach and Overtopping Modelling and our engineering skills. Our work for clients also benefits from our strong relationship with the Environment Agency, SEPA, NRW and Lead Local Flood Authorities.


  • Joshua Phillips

    We are working on behalf of a client with a site in West Thurrock, RM20 3ED, and require a flood risk assessment as part of supporting documentation for a planning application.

    Please can we have a fee quote for the above work and an estimated time scale.

    Thanks very much in advance,
    Joshua Phillips
    Ampersand Associates LTD.

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