268Service of notice of order.
(1)Where a local housing authority have made a demolition or closing order, they shall serve a copy of the order on—
(a)the person having control of the premises,
(b)any other person who is an owner of the premises, and
(c)every mortgagee of the premises whom it is reasonably practicable to ascertain.
(2)An order against which no appeal is brought becomes operative at the end of the period of 21 days from the date of service of the order and is final and conclusive as to matters which could have been raised on an appeal.