I posted on here a while back of a job we did at an architect's house . He had an additional , posh conservatory type extension which contained an excercise tank and a jaccuzzi . Tank was like a big bath where you swim against a pumped current.
I went to drop off some stuff to our sparks to find he'd been bulldozed into wiring a ring main in there , there was an oak skirting about 12" high and he had twin KO boxes flushed into it and a socket right above the tank ( for plugging Christmas lights into ) And he'd moved the 4 gang wall light switch into the room , wall mounted , metal plate , grid switch .
He'd convinced our spark that it wasn't a bathroom so the regs didn't apply . ( 16th edition) I was arguing with the architect AND our bloke ( Who should have phoned it in before doing any extra work anyway. !!) . The only reason it wasn't a bathroom was that it didn't say that on the door, it would still have wet , naked people walking about , plugging stuff into sockets etc .
The upshot was I had to drive the NIC bloke there to quell the argument ............. only he sided with the architect's opinion and pronounced it wasn't a bathroom . :C I've told the story a few times and some sparks agree ...its not a bathroom . We asked for payment up to date and advised them in writing that we would be leaving the job and they get another firm to complete.
In our opinion the criteria was ...wet , naked people in a room which was to filled with electrical equipment ......but what do we know .