20.—(1) Where–
(a)it is not possible for the planning authority to carry out notification in terms of regulation 18 because there are no premises situated on the neighbouring land to which the notification can be sent;
(b)the applicant has submitted with an application for planning permission under regulations 9 to 11 a certificate issued under regulation 15(2)(b)(iii);
(c)the application relates to development of one or more of the classes of development specified in Schedule 3, or
(d)the application relates to development which does not accord with the provisions of the development plan,
the planning authority must publish a notice in the form set out in Schedule 4 in a newspaper circulating in the locality in which the neighbouring land is situated.
(2) The planning authority are not required to publish a notice in accordance with paragraph (1) where a notice is required to be published by the planning authority in accordance with sections 60(2)(a) and 65(2)(a) of the Planning (Listed Buildings and Conservation Areas) (Scotland) Act 1997 (publicity for applications affecting conservation areas).
(3) Where any of paragraphs (1)(a) to (d) apply but notice has already been published with respect to the application under paragraph (1) the planning authority are not required to publish a further notice.