The Ultrahouse 2 is the Halloween Personal Prize item in The Simpsons: Tapped Out game on mobile devices. You can only get this item during the 2013 in the Personal Prize section during the Halloween update collecting GOO then unlocking it. If you do not have enough GOO you will not be able to access this item in the game.
How to Get
The Ultrahouse 2 is an item that is exclusive to the Halloween update of 2013 and can be obtained through reward and getting enough GOO through tapping on Ghosts then unlocking this item.
This item is #6 on the list and is used during the Halloween update as a skill to suck up ghosts in the game.