Sch 15 para 9
Where a compliance determination has been given that works on land or a use of land shall not be deemed to comply with planning control or shall be deemed to comply with it subject to conditions, then if a person entitled to make a compliance determination application with respect to the land satisfies the authority or on appeal the Secretary of State that there has been a material change of circumstances since the previous application was determined, he may make a subsequent application and on such an application the authority or on appeal the Secretary of State may substitute for the compliance determination such determination as appears proper having regard to all relevant circumstances.