Urban Regeneration and Housing Act 2015
Obligation to owners to notify
10. (1) The owner of a vacant site that stands entered on the register under section 6(2) shall notify the planning authority in whose functional area the site is located if it is no longer vacant or idle.
(2) If, at any time, a planning authority is satisfied that a site that stands entered on the register under section 6(2) is no longer a vacant site it shall cancel the entry on the register in respect of that site.