In whatever universe the Addams family inhabit, there is a house which they own, which has been in their family for generations. The residence include (counting only the living of course): Morticia, Gomez, Wednesday, Pugsley, Uncle Fester and Grandmama. Other notable residence include: Lurch, Thing and Cousin Itt.
Its address is 001 Cemetery Lane, advantageously located beside both a cemetery and a swamp.
In the animated series of the Addams Family, the house has been turned into a mobile-home/RV, so the family could take it on their adventures. Unknown what it got in the ways of gas mileage.