I was in contact with the owner - it's not a rent issue I don't think so much as they feel that it hasn't worked as a viable business. As others have suggested, although it was busy all the time, presumably it wasn't profitable enough. I get the impression that they may yet open an alternative business on that site, so I'll look forward to seeing what that is and will continue to support them. The staff are happy to give out the owner's email address in case anyone else wanted to verify!