Thanks for the reply, Jimmy.
It was never the intention to hive off the car parking spaces.
The problem is that lately more lots are being occupied by tenants with multiple cars who consider it ok to park in the visitor car parking spaces.
The owners of the tenanted lots need to tell their tenants not to park there.
Your advice will help the EC to get the point across that there is a legal issue at stake which the EC will enforce, if only by issuing invoices to the owners as suggested in your advice to someone else.
Best wishes
Jef