Shed
Have you flown into MAN recently ? Any perceptions that there was a desire to keep green space on the airfield boundary was blown away years ago, just look at the car park on the old joes field site as an example(opposite the Airport pub).
I have spent many a pleasant hour watching aircraft & scabby looking sheep eating Jet A1 contaminated grass at this new car park location, yes its quaint but hardly a green lung in the area.
If it helps to keep cars off the west apron in the future then it gets my vote as well.