Mystery Wall

We came across this substantial field wall just to the west of Brandy Head (named, on supposes, for the nocturnal activities of yesteryear) on the Otterton peninsular.

A wall which appeared to be made of blocks or some such and then rendered. Nicely finished top of wall and with reinforcing columns every twelve feet or so. A sort of lower grade park wall, the only catch being that there was not a stately home in sight, just the rather grand South Farm.

But why would you spend all that money in the middle of nowhere? Was it a job creation scheme for restless squaddies waiting for the off on D-Day?