Answer
Do I need planning permission for a patio?
A ground-level patio normally needs no permission, except on designated land or a listed property.
In short
A patio at ground level is normally permitted development and needs no planning permission. It only becomes an issue if it raises ground levels significantly, sits on a listed property, or is on designated land such as the Cotswolds National Landscape, where the rules are tighter. Drainage still matters: keep the run-off on your own land.
A note
General guidance, not advice. Rules vary by site, and Article 4 directions or conditions can change what applies. Check with your local authority and the Planning Portal.
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