Depending on the location of your site a flood risk assessment may be needed as part of your planning application. If you’re unsure, contact the Environment Agency for advice. A flood risk assessment is not needed for a development of less than 1 ha in flood zone 1 unless it could be affected by sources of flooding other than rivers and the sea, for example surface water drains.

Where your needs are more complex and you require a consultant,  Site Remedial Services Limited can assist with your flood risk assessment.

For most developments within one of the flood zones, you need to do a flood risk assessment. This includes developments:

  • 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)
  • in an area within flood zone 1 which has critical drainage problems as notified by the Environment Agency

All of our flood risk assessments are conducted in line with Environment Agency guidance and comply with planning permission requirements.

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