(1)Before determining an appeal under section 154(1), the Secretary of State shall, if either the appellant or the planning authority so wish, give each of them an opportunity of appearing before, and being heard by, a person appointed by the Secretary of State for the purpose.
(2)Where the Secretary of State or a person appointed by him under Schedule 4 to determine an appeal grants a certificate under section 150 or 151, the Secretary of State or that person shall give notice to the planning authority of that fact.