Hello, eagerly awaiting my new boy, now live in a townhouse & thinking 2 trays is best as more space to cover etc.
I've put one in the top bathroom (door open all the time, top floor going to be used by guests so will have access most of the time)
No room in the hall for a tray, next thought is the living room...which feels a little meh but would be handy in the first few weeks when he'll be in the living room during times we are coming & going to avoid any escapes! I would get a fancy litter tray in a unit thing so would look nicer in the living room.
The only other space I have is the dining room but it's right next to the catflap which I've read isn't the best idea!
As you can see I'm probably over thinking this & now an confuzzled...help a cat mum to be out please