boohoo
No.
I would refer you to table 10 in British Standard BS6465-1:1994 (Sanitary installations—Part 1: Code of practice for scale of provision, selection and installation of sanitary appliances).
For a public house or bar with a capacity of 600 persons, you would require (assuming equal number of male/female customers):
Male: 2 WCs, 5 urinals and 3 washbasins.
Female: 13 WCs and 7 washbasins.
I challenge you to fit 13 WCs and 7 washbasins into the same amount of space as 2 WCs, 5 urinals and 3 washbasins.
This might be a suggested requirement but how often is it actually put into practice. I don't go to that many places with 13 wcs. And why do blokes only need 3 washbasins???



I am a gentleman.



