7Without prejudice to his powers, by virtue of section 31(1) or 35 of this Act, the Secretary of State may by regulations make with respect to applications for planning permission for development in Greater London provision for particular applications or applications of a particular class to be referred before they are dealt with by the local planning authority—
(a)in the case of an application falling to be dealt with by the Greater London Council, to the Secretary of State ;
(b)in the case of an application falling to be dealt with by the council of a London borough—
(i)to the Greater London Council;
(ii)in such cases as the regulations may prescribe, to the Secretary of State ;
(c)in the case of an application referred to the Greater London Council by virtue of sub-paragraph (b)(i) of this paragraph, to the Secretary of State,
and for the giving to the referring council by the Greater London Council or, as the case may be, the Secretary of State, of directions as to the manner in which the application is to be dealt with.