I noticed that most of the outdoor scenes were shot at the Warner Ranch, where a ton of movies and TV shows were filmed. Wanda and Vision are in the Griswold house, next door to the Lethal Weapon (Hazel) house, which is next to the Bewitched house, which is across the street from "The Middle" house, next to the Partridge house, etc. etc. The pool is in the park near the Small Soldiers house, almost directly across from the Partridge house.
The gazebo is on the main Warner backlot, and was used in Gilmore Girls and Hart of Dixie.
I may have missed a few things.