“(11) The development must not begin before the occurrence of one of the following – (a) the receipt by the applicant from the Local Planning Authority of a written notice of their determination that such prior approval is not required; (b) the receipt by the applicant form the Local Planning Authority of a written notice giving their prior approval; or (c) the expiry of 56 days following the date on which the application under subparagraph (2) was received by the Local Planning Authority without the Authority notifying the applicant as to whether prior approval is given or refused.” (a) the receipt by the applicant from the Local Planning Authority of a written notice of their determination that such prior approval is not required; (b) the receipt by the applicant form the Local Planning Authority of a written notice giving their prior approval; or (c) the expiry of 56 days following the date on which the application under subparagraph (2) was received by the Local Planning Authority without the Authority notifying the applicant as to whether prior approval is given or refused.”