Two types of certificate
Proposed use or development. Confirms that work you plan to do is permitted development and doesn't need planning permission. Useful before building an extension or outbuilding, and very helpful when you sell.
Existing use or development. Confirms that something already built, or a use that's already happening, has become lawful, usually because it has existed for long enough without enforcement action. This needs clear evidence, such as dated photos, documents and statutory declarations.
How we help
- For proposed works, we prepare drawings that show the project meets permitted development limits, and submit the application.
- For existing works or uses, we review your evidence, tell you honestly whether it's strong enough, and prepare the application and supporting statement.


Who'll handle your project: Benjamin Plunkett, our Managing Director and Planning & Heritage Consultant, is your point of contact from the first site visit to the decision. Charlie Plunkett MCIAT produces the drawings.
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