9Where an application is made to the local planning authority for listed building consent, then unless within the prescribed period from the date of the receipt of the application, or within such extended period as may at any time be agreed upon in writing between the applicant and the authority, the authority either—
(a)give notice to the applicant of their decision on the application ; or
(b)give notice to him that the application has been referred to the Secretary of State in accordance with directions given under paragraph 4 of this Schedule,
the provisions of paragraph 8 of this Schedule shall apply in relation to the application as if listed building consent had been refused by the authority and as if notification of their decision had been received by the applicant at the end of the prescribed period or at the end of the said extended period, as the case may be.