The Griswold home, like Todd and Margo's, is an exterior set on "Blondie Street" on a Warner Brothers back lot in Burbank, CA (the neighbors next door). The filming of the show was done between September 8-November 14, 1987. Here are the details of where to find the sets on which the Griswolds lived: The driveway that leads up to the house is located at 910 Blondie Street. You can see it in this photo from the TV series: And here is a photo of the whole street with all of its houses: Now, having found these sets, you might be wondering how many Griswolds there actually were in the show. Well, there are usually two people in every family unit so if you include spouses and children then there should be six people in the family. But since only four people were played by actors, we have three families on the show. This means there should be twelve people in all on Griswold Lane. But since some of these people were extras they probably didn't even know they were on a television show! So really, there could be as few as one Griswold person or as many as twelve!