If it appears to the Secretary of State, after consultation with the local planning authority (and, in Greater London, also with the Greater London Council), to be expedient that a listed building enforcement notice should be served in respect of any land, he may give directions to the local planning authority requiring them to serve such a notice, or may himself serve such a notice; and any notice so served by the Secretary of State shall have the like effect as a notice served by the local planning authority.
In relation to a listed building enforcement notice served by the Secretary of State, the provisions of section 99 of this Act shall apply as if for any reference therein to the local planning authority there were substituted a reference to the Secretary of State.