No compensation if similar restrictions in force under any other law or if compensation already received.

No compensation shall be awarded- (i) if and in so far as the land is subject to substantially similar restrictions in force under some other law which was in force on the date on which restrictions were imposed by this Act; (ii) if compensation in respect of the same restrictions imposed under this Act or substantially similar restrictions in force under any other law has already been paid in respect of the land to the claimant or to any predecessor in interest of the claimant.