'The Beverly Hillbillies' mansion is now the most expensive home you can buy in the U.S. The Chartwell Mansion in Bel-Air that we all remember so well from The Beverly Hillbillies is worth more than any other house currently on the market. It's certainly a heck of a lot more than the $500 a day The Beverly Hillbillies crew paid to rent the estate to use as the show's set, but let's give Clampett his due: It's still considerably less than the $6.6 billion that Forbes estimated Jed Clampett would