Airfield
Don't quote me but I am sure that there is an condition with Adur council that the site must be an aerodrome for a number (not sure but quite a while) of years.
Who said that Shoreham should downgrade to A/G. Complete nonsense. It's one of the UK's busiest airfields and last checked in the top three of training/club airfields. I had people questioning me on this fact before. So before you do, check the CAA website for aerodrome movements.
Turning EGKA into an A/G airfield would bring, mayhem, madness and accidents.