'What Natural said. From an in-patient POV, their ward loos and bathrooms are probably some of very few that we can guarantee are still single-SEX, however patients identify.'
Thing posted unthread from the hosp confirms toilets for patients are 'single gender'.
Newspaper piece says gender neutral toilets will be 'fitted' in public buildings, which is very much not the same as changing the sign on the door of the ladies 
These orgs should surely be leaving the ladies alone and making the gents gender neutral? Given difference in queues etc and women's facilities being too few all over the place, it's the only thing that makes sense.
Our tube station has done this btw. Gents is gents, women's got changed to anyone.
Pisses me off tbh.