Prior approval applications: time periods for decisionE+W

7.  Where, in relation to development permitted by any Class in Schedule 2 which is expressed to be subject to prior approval, an application has been made to a local planning authority for such approval or a determination as to whether such approval is required, the decision in relation to the application must be made by the authority—

(a)within the period specified in the relevant provision of Schedule 2,

(b)where no period is specified, within a period of 8 weeks beginning with the day immediately following that on which the application is received by the authority, or

[F1(c)within such longer period than is referred to in paragraph (a) or (b) as may be agreed by the applicant and the authority in writing.]