Just to clarify. The hall has not been sold. On the contrary it has been effectively commandeered. The ownership is being voted, at the instruction of the beneficiary (IBSA) . If the assembly hall(s) come back into use then presumably circuits will pay handsomely to use the building. If the building becomes redundant, then it can be sold without further reference to those who built it, made the sacrifices materially and financially to do so.
So, not sold... yet. As for the future, who knows?