Wet Rooms in the UK

I was having a conversation with someone last week and they were telling me about the wet room they have planned for their house.  I was stumped, I had no idea what a wet room was.

Well now I know.  A wet room is just like a walk in shower, or really it is a walk in shower.  Now I know and it can be added to my 43 things.  I have just come back from holiday, and we liked staying in Holiday Inns – their bathrooms are like this.  They have tiled under-floor heating, a drain in the floor – so that water can run anywhere while you are using the bath or shower.

Wonder if my landlord would spring for this?