Sorry to say it for the sake of the sellers but this gaff is going to be worth very little when the dust settles. It is a former corporation house in a quite isolated area where there are generally only corporation houses. Not many people are willing to pay for a gaff where their neighbours are getting there’s for free.
I would imagine the best bet here is if the seller approaches the council and tries to get a sale as quickly as possible. Every day that passes sees this gaff get cheaper and cheaper.