allright I have another question about the show (and I hope I don't have to wait 6 MONTHS again for an answer) Why; in season 7 were the Burns and Mortons in different houses?

allright I have another question about the show (and I hope I don't have to wait 6 MONTHS again for an answer) Why; in season 7 were the Burns and Mortons in different houses?
When they returned from New York, George told us Gracie had the place redecorated. Of course, he didn't mention moving walls, etc.

Seriously, somebody probably decided the old sets were tired, and built new ones. If you notice, they made minor modifications to the stairs in season 5, also.