Very boring diagram as it's parking related....
If you have an open air, ground level carpark that is meant to be entered into via a key (which anybody can get hold of, for arguments sake), for insurance, are you in a private and secure car parking area? Cars enter via key but you can walk in on foot without one, so even if you can't steal a car without a key, it can still be damaged by a passer by.
Extra question: if the gates are not working andcare open, should you change your insurance to reflect that?