49Compensation on compulsory acquisition of listed building
Subject to section 50, for the purpose of assessing compensation in respect of any compulsory acquisition of land including a building which immediately before the date of the compulsory purchase order was listed, it shall be assumed that listed building consent would be granted for any works—
(a)for the alteration or extension of the building; or
(b)for the demolition of the building for the purpose of development of any class specified in Schedule 3 to the principal Act (development not constituting new development),
other than works in respect of which such consent has been applied for before the date of the order and refused by the Secretary of State, or granted by him subject to conditions, the circumstances having been such that on that refusal or grant compensation became payable under section 27.