caravan site licence - Robuta Search

https://www.gov.uk/find-licences/caravan-site-licence

You usually need a licence from your local council to have a caravan site on your land

https://www.gov.uk/apply-for-a-licence/caravan-and-camping-site-licence/welwyn-hatfield/apply-1

https://www.gov.uk/apply-for-a-licence/caravan-and-camping-site-licence/gedling/change-2