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You are trying ValidFirst in Kingsmere, a made-up example council. Don’t use real personal details.
  1. 1. Say what you’re planning
  2. 2. Upload and see the findings

← Another application type

Lawful development certificate (proposed)

A legally binding confirmation from the council that something you plan to do, most often a permitted development extension, loft conversion or outbuilding, would be lawful without planning permission.

What it checks

  • Location plan11 checks
  • Application form7 checks
  • Block plan (site plan)9 checks
  • Existing floor plans and elevations7 checks
  • Proposed floor plans8 checks
  • Proposed elevations9 checks
  • Roof plan6 checks
  • Statement of lawfulness5 checks
  • Photographs of the site3 checks

Start without an account

Up to 15 checks. The trial and everything you upload are erased after 24 hours. Don’t upload documents with other people’s personal details.

Prefer a real place?

Start from your council’s page with a postcode, and the trial shows that site’s real designations from national planning data.

308 planning authorities in England.