What is the biggest mansion in South Carolina?


What is the biggest mansion in South Carolina? The Calhoun Mansion is the largest private residence in all of Charleston and may be seen on your carriage tour of this beautiful, historic city. Built in 1876 by George W. Williams, the mansion was his contribution to the reemergence of Charleston after the civil war.


Does anyone own the most expensive house in America?

Ken Griffin, founder of hedge fund Citadel, holds the record for the biggest real estate purchase, with the $239 million purchase of a sprawling penthouse in Manhattan at 220 Central Park South.


What is the largest privately owned mansion in the United States?

1. Biltmore Estate (Asheville, North Carolina): 175,000 square feet. The Biltmore Estate isn't just the largest privately owned house in the United States — it blows the competition out of the water.