89.—(1) If a council to which an application is made for listed building consent intends to grant listed building consent it must first notify the Department of the application, giving particulars of the works for which the consent is required.
(2) The Department may within the period of 28 days beginning with the date of such a notification—
(a)direct the reference of the application to it under section 88; or
(b)give notice to the council that it requires further time in which to consider whether to require such a reference.
(3) The council must not grant listed building consent until—
(a)the period mentioned in subsection (2) has expired without the Department directing the reference of the application to it or giving the council notice under paragraph (b) of that subsection; or
(b)the Department has notified the council that it does not intend to require the reference of the application.