Purchasers and persons claiming through owner bound by instrument executed by owner

Purchasers and persons claiming through owner bound by instrument executed by owner Every person who purchases any protected monument or site, or any part thereof, and every person claiming through him or her or under the title under which he or she held the monument or site at the time of the purchase, shall be bound by any instrument executed by the owner for the time being under section 9, 10 or 11.