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Is your project Permitted Development?

Answer four short questions. We'll tell you whether you can DIY it, need a Larger Home Extension prior approval, or need full planning permission. Powered by planning.data.gov.uk and Claude AI.

We use this to pull your council and any designations on the site.

Add dimensions for a sharper answer (optional)

We use postcodes.io and planning.data.gov.uk to look up your council and any designations. Your verdict isn't stored unless you opt in to email it to yourself.

Want the full assessment?

Upload your drawings. Get the answer your council will give you — before they give it.

  • AI vision on architect drawings
  • Submission readiness check
  • Per-LPA validation list
  • BNG & CIL flagging
  • Engineer request links
  • Decision letter parsing

For architects & planning consultants

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