Initial Master Toilet Concept

Some time back I gave some thought to the master toilet. The point of departure was to make the toilet as efficient as possible and whether we could do a separated sink area. Well, its not that we really required a super efficient toilet, we have 3 in the apartment, but it was more a design exercise for me. 

So after a bit of doodling, I came up with this idea to have a pivot door that can separate the sink area from the WC & Shower. That means if I'm in the shower, the wife can still use the sink to brush her teeth etc.. while maintaining privacy on my end of the bathroom.

Well just an idea.