Where the Secretary of State confirms a listed building purchase notice, the council on whom the notice was served shall be deemed—
If before the end of the relevant period the Secretary of State has neither—
the notice shall be deemed to be confirmed at the end of that period and the council on whom it was served shall be deemed to have been authorised as mentioned in subsection (1)(a) and to have served a notice to treat in respect of the owner's interest at the end of that period.
Where a listed building purchase notice is confirmed in respect of only part of the land, references in this section to the owner's interest in the land are references to the owner's interest in that part.
Where a listed building purchase notice is modified under section 35(6) by the substitution of another local authority or statutory undertakers for the council on whom the notice was served, the reference in subsection (1) to that council is to that other local authority or those statutory undertakers.
In this section "the relevant period" means, subject to subsection (6) below—
The relevant period does not run if the Secretary of State has before him at the same time both—
Where any decision by the Secretary of State to confirm or not to confirm a listed building purchase notice (including any decision to confirm the notice only in respect of part of the land, or to give any direction as to the granting of listed building consent or planning permission) is quashed under section 63, the notice shall be treated as cancelled but the owner may serve a further notice in its place.
For the purposes of determining whether such a further notice has been served within the period prescribed for the service of listed building purchase notices, the decision concerning listed building consent on account of which the notice has been served shall be treated as having been made on the date on which the Secretary of State's decision was quashed.