Draw the boundary of your site

You need to draw the boundary of your site on the map below so we can give you accurate flood risk information.

Make sure you include access to your site in the boundary, including all entry and exit points.

How to draw a boundary
  • click or tap the screen to place the first point (or node) of your boundary, do not try to drag or swipe to draw a line, as that will move the map
  • click or tap the screen again to place the second point of your boundary, you should see a blue line drawn between the points
  • keep adding points until you have finished the boundary of your site
  • to finish your boundary, double click or double tap the screen.
  • the boundary is finished when the lines turn red

If you need to change the finished boundary you can:

  • drag points to change their position
  • add more points by clicking or tapping on a line
  • delete the boundary you've drawn and start again by clicking or tapping the 'Delete boundary' button

Click or tap the 'Continue' button to get your flood risk information.

Error: You need to draw the boundary of your site on the map. Click ‘How to draw a boundary' if you need help.

Click to delete the boundary for your location
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Continue

Alternative formats

If you are unable to use the map and need to order flood risk information in a different way contact the Environment Agency team in Hertfordshire and North London at hnlenquiries@environment-agency.gov.uk.

Or contact the Environment Agency:

Environment Agency
Telephone: 03708 506 506
Monday to Friday, 8am to 6pm
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