The Dunphy House is the house where Phil and Claire Dunphy live with their three children: Haley, Alex, and Luke. It is a detached, suburban home with two living rooms, kitchen/dining room, 2 bathrooms, 4 bedrooms, and a garage. Outside it has both a front and back garden with a trampoline. Near the the top of the staircase, there's a broken step that it's tripped on frequently by people, mainly Phil and Claire. Every time Phil runs up or down the stairs and he trips on it, he yells out "Gotta fix that step!". It's been going on since "The Bicycle Thief".
The real house is located in Los Angeles. It is 2 miles away from where Modern Family is taped.