Filmed on location in...
Some scenes were shot in a three-story single-family house, located at 671 Lincoln Avenue, in Winnetka, Illinois. The kitchen in this movie was shot in the house, along with the main staircase, basement, and most of the first floor landing. The house's dining room, and all of the downstairs rooms (excluding the kitchen) were built on a soundstage. The house was built in 1921, and features five bedrooms, a fully converted attic, a detached double garage, and a greenhouse. "Kevin's tree house," in the backyard, was built specifically for this movie, and demolished after principal photography ended.