Foxmouth, you are quite correct. But I do remember a few years back on a cold wet windy day with not much else going on, we instructors were chewing the cud. We realised that in theory if you go to buzz an unlicenced aerodrome to clear the sheep b4 the next approach to land, you could get yourself into trouble if some person to dislike to your antics. Thats all folks!
Licenced means the CAA have checked and verified the declared distances for the runway in question. And will be notified in the AIP. Un-licenced means they won't appear here and you have to take the figures with a pinch of salt.