Just heard that the council have told the owners not to proceed with demolition on two grounds.
1. I have applied to English Heritage for listing, so they should wait until the outcome of that has been decided.
2. Someone else has complained that there are bats in the building and they are not allowed to demolish a building with bats in (as they are a protected species) without a licence which they don't have.
We're not out of the woods yet but it has given us time.