4After section 56A of the [1971 c. 78.] Town and Country Planning Act 1971 insert—
“56BApplication for variation or discharge of conditions.
(1)Any person interested in a listed building with respect to which listed building consent has been granted Subject to conditions may apply to the local planning authority for the variation or discharge of the conditions.
(2)The application shall indicate what variation or discharge of conditions is applied for and the provisions of Part I of Schedule 11 to this Act apply to such an application as they apply to an application for listed building consent.
(3)On such an application the local planning authority or, as the case may be, the Secretary of State may vary or discharge the conditions attached to the consent, and may add new conditions consequential upon the variation or discharge, as they or he thinks fit.”.