Yes Hugo, it was St Anne's. The Crescent also used to house the library which was in the most gorgeous pale blue and white room with Adam plasterwork.
The building eventually became in the ownership of the council and was in a poor state. There were all sorts of attempts to get grants etc and while all this was going on the owners were made to spend money on keeping it watertight.
I think the plans were eventually approved to turn it into a hotel again and I thought this work was ongoing but in DaveR's photo there doesn't seem much sign of it.