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Free check · not legal advice

Question 1 of up to 8 · we stop as soon as your answers decide

What kind of development is it?

A householder application (an extension, conservatory or loft conversion at a home) New homes Commercial or other buildings (shops, offices, industrial, community) Self-build or custom build homes A temporary development (permission for 5 years or less) Minerals working or waste development Creating habitat to sell as off-site gains (a habitat bank) Part of the high speed railway network Permitted development (no planning application needed) Urgent Crown development A nationally significant infrastructure project (development consent order)

Based on the gov.uk guidance on exempt developments (updated 6 August 2026), the Small Sites Metric user guide and the planning definition of major development. This check does not cover variations of an existing permission. It is not legal advice: your planning authority decides. How the check works.

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