" ... no permitted development rights exist pursuant to the Town and Country Planning (General Permitted Development Order) 1995 which would permit the development that the [Enforcement] Notices require to be carried out."
"The Council has now received counsel's opinion, as a result of which the Council is firmly of the view that permitted development rights granted by the Town and Country Planning (General Permitted Development) Order Article 3(1), Schedule 2, Part 24 no longer apply to the above site. This is because of the inclusion of the site in the Highbury New Park Conservation Area on14 October 2002 . In the light of counsel's opinion the Council is further of the view that prior approvals granted before the designation of the site as a Conservation Area cannot be relied upon to authorise erection following such designation. Development has not occurred in accordance with the details in the prior approval and Notice of Intention. The works undertaken are therefore in breach of condition and unlawful. Permitted development right cannot therefore be relied upon now to carry out the development because of the Conservation Area designation."
"Planning permission may be granted—(a) by a development order; (b) by the local planning authority ... on application to the authority in accordance with a development order; ... "
"A development order may either— (a) itself grant planning permission for development specified in the order or for development of any class specified; ..."
"3(1) Subject to the provisions of this Order ... planning permission is hereby granted for the classes of development described as permitted development in Schedule 2. (2) Any permission granted by paragraph (1) is subject to any relevant exception, limitation or condition specified in Schedule 2."
"A. Development by or on behalf of a telecommunications code system operator for the purpose of the operator's telecommunication system in, on, over or under land controlled by that operator or in accordance with his licence, consisting of— (a) the installation, alteration or replacement of any telecommunication apparatus, ..."
"in the case of development ... of any Article 1(5) land ... it would consist of- (i) the installation or alteration of an antenna or of any apparatus which includes or is intended for the support of such an antenna ..."
"(ii) before beginning the development, the developer shall apply to the local planning authority for a determination as to whether the prior approval of the authority will be required to the siting and appearance of the development; (iii) the application shall be accompanied— (aa) by a written description of the proposed development and a plan indicating its proposed location together with any fee required to be paid; ..."
"Every local planning authority— (a) shall from time to time determine which parts of their area are areas of special architectural or historic interest the character or appearance of which it is desirable to preserve or enhance, and (b) shall designate those areas as conservation areas."
"In the exercise, with respect to any buildings or other land in a conservation area, of any powers under any of the provisions mentioned in subsection (2), special attention shall be paid to the desirability of preserving or enhancing the character or appearance of that area."
"The revocation or modification of permission for the carrying out of building or other operations shall not affect so much of those operations as has been previously carried out."
"If the Secretary of State or the appropriate local planning authority is satisfied that it is expedient that development described in any Part, Class or paragraph in Schedule 2, other than Class B of Part 22 or Class B of Part 23, should not be carried out unless permission is granted for it on an application, he or they may give a direction under this paragraph that the permission granted by article 3 shall not apply to—(a) all or any development of the Part, Class or paragraph in question in an area specified in the direction; or (b) any particular development, falling within that Part, Class or paragraph, which is specified in the direction and the direction shall specify that it is made under this paragraph."
"Which of two available remedies, or perhaps more accurately, avenues of redress, is to be preferred will depend ultimately upon which is the more convenient, expeditious and effective. Where ministers have default powers, application to them will generally be the better remedy, particularly where, as so often, the central complaint is in reality about the substantive merits of the decision. The minister brings his department's expertise to bear upon the problem. He has the means to conduct an appropriate factual inquiry. Unlike the court, moreover, he can direct a solution rather than merely lead the authority to redetermine the question. Where, on the other hand, as here, what is required is the authoritative resolution of a legal issue, issue no 1, then, in common with Dillon LJ, I would regard judicial review as the more convenient alternative remedy."