I see you what you did there. Lol
Both shows were created by Sherwood Schwartz.
I’m not this geeky but I read on another forum that the girls’ bedroom wraps around the house, at least 1/2 way, possibly 3/4, or even around the whole house.
In various episodes, the girls looked out their bedroom window at the front yard, the back yard, and at least one, possibly both, side yards.