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What is a blue line boundary?

The blue line boundary is a secondary boundary that you can identify on a location plan. It highlights any additional owned land or property that is relevant to the application. You do not have to draw a blue line boundary, although it is helpful for Local Authorities if you show other owned land.

Read our guidance for more information1.

  1. https://www.planningportal.co.uk/services/help/location-plan-feature/drawing-a-site-boundary

The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing and Communities (DLUHC). All content © 2024 Planning Portal.

The Planning Portal is delivered by PortalPlanQuest Limited which is a joint venture between TerraQuest Solutions Limited and the Department for Levelling Up, Housing and Communities (DLUHC). All content © 2024 Planning Portal.