Skip to main content
close x

Flood Risk assessments

Flood Risk assessments

You need to do a flood risk assessment for most developments within one of the flood zones.

This includes developments:

  • in flood zone 2 or 3 including minor development and change of use;
  • more than 1 hectare (ha) in flood zone 1;
  • 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.

You don’t need to do a flood risk assessment for a development that’s 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.

More guidance regarding this can be found on the Government website under ‘Flood risk assessments if you’re applying for planning permission’.


Patrick
Heneghan
National Park Member

profile

'Read our guidance notes before applying to save yourself time in the long run.'

Newsletter Image

Email

Newsletter

6

Free

Six free walking routes when you sign up for New Forest Newsletter


Subscribe to New Forest National Park Authority

By entering your email below you are consenting to us sending you newsletters. To unsubscribe, email communications@newforestnpa.gov.uk. More info: www.newforestnpa.gov.uk/privacy-cookies


I think you mistyped your email
Your interests (tick at least one)










Please select one

By signing up to this form you are consenting to receive emails from us. Each email will contain a link to your personal reference settings where you can opt-out or change which emails you receive from us. Please read our Privacy Policy for more information about how we use data.

Subscribe to New Forest National Park Authority

Thanks, your subscription has been confirmed. You've been added to our list and your New Forest walking pack is on its way to you, including a link to download our free app.