Here's the WC in the gîte rural we stayed in last October in the Vendée, out on the Atlantic coast. It really was a petit coin — and rustic-looking. It was downstairs in the rental property, off the kitchen. There was a full bathroom, with a toilet, sink, and shower, upstairs.
And here's the petit coin in the gîte rural we stayed in last March in Le Puy-en-Velay (Auvergne). It was more finished, felt cleaner, and was located off the living room. There was the same kind of bathroom upstairs as in the Vendée gîte — shower, sink, and toilet.
I thought our new WC was going to be a cramped space. I was wrong. It's a big room, considering its function. We'll be able to put a storage cabinet inside, to the right of the door. We might also decide to put a shelving unit or cabinet of some kind on the opposite side of the room. I'm thinking we might have chosen a larger sink too. Things can always be changed.
Here's the WC door. You can't really see through it, but the frosted glass panels let in daylight from the window on the right. That's nice, even though the light fixture we found and have had installed over the door lights the room more than adequately. In this photo, the light inside is switched on.