In the movie, the National Lampoon's Christmas Vacation house is located in a snowy Chicago suburb, however, the true location of the property is on the backlot of the Warner Bros. Ranch facility in Burbank, Los Angeles.

Where does the Griswold family live?

Ranch Facilities in Burbank, California, where the set of the Griswold family's house and street is located.

Where is the actual Griswold house?

The Griswold house is actually an exterior set on “Blondie Street” on a Warner Brothers back lot in Burbank, CA, as is Todd and Margo's house (the neighbors next door). The house has been altered a lot to serve other movies, especially the interiors, which are also only a set, not a real house.