If you've parked there for 20 years without getting a ticket then you would seem to have a strong case to claim 'legitimate expectation'. It may be there is a new CEO now patrolling. Certainly, I would submit reps on the basis of long-standing parking. Unfortunately GSV seems to not have done a survey of Lees Road, which is a bit peculiar, but this means we can't look at it virtually to give best advice.