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  1. Welcome to Planning Portal
  2. Do you need permission?
  3. Your responsibilities
  4. Other considerations before you start work
  5. Flood risk

Other considerations before you start work

Flood risk
  1. Introduction
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Flood risk

Before you submit your planning application

Before you submit your planning application, check whether you need to include additional information on flood risk and sustainable drainage. If you don’t submit the information you need:

  • The LPA may not validate your application
  • The Environment Agency and Lead Local Flood Authority are more likely to object to your application
  • The LPA may refuse planning permission


Providing the right information first time, is likely to:

  • Reduce the chances of receiving objections to your application
  • Avoid delays to the LPA deciding your application

Find out more about understanding and assessing flood risk1.

  1. https://www.planningportal.co.uk/permission/commercial-developments/understanding-and-assessing-flood-risk

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    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Ministry of Housing, Communities & Local Government (MHCLG). All content © 2025 Planning Portal.

    The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Ministry of Housing, Communities & Local Government (MHCLG). All content © 2025 Planning Portal.