Having been involved (as in our co-op) in a long and drawn out dispute with Fethiye belediye over a few square metres of land before, I would get some advice over this one.
The fine is just that, it's not permission to use or take possession of the land - no matter how miniscule it is. It may be a good idea to get together and appoint one person to liaise with the council, especially as there are quite a few owners involved. Maybe someone like Sule...?
Our issue took seventeen years to resolve, hence we could only issue tapus a couple of years ago.
JF