Hmm. Interesting terminology issue. A venue could have an "accessible" toilet (i.e. one which met accessibility criteria) which was not actually accessible, in the sense of being reachable past tables, people, etc.

But the Carlton doesn't actually have an accessible toilet at all, does it? Certainly not in the bar we frequent, but not in the other one either? (Hmm. And the wheelchair-friendly entrance is to the bar we frequent, in any case.)

There are a lot of places that I know have wheelchair-friendly entrances and plenty of space to move around and reach the toilets, but where I'm not certain they have an accessible toilet, never having checked. The Golden Curry and Saffron Brasserie, for example.