List of largest houses in the United States

List of the top 20 largest historic houses by square footage

Rank	Square Footage	Name	Location	Built By	Year Completed	Architectural Style	Architect
1	175,000	Biltmore Estate	Asheville, North Carolina	George Washington Vanderbilt II	1895	Châteauesque	Richard Morris Hunt
2	110,000	Mar-A-Lago	Palm Beach, Florida	Marjorie Merriweather Post	1927	Mediterranean	Marion Sims Wyeth
3	109,000	Oheka Castle	Huntington, New York	Otto Kahn	1919	Châteauesque	Delano and Aldrich
4	100,000+	Whitemarsh Hall	Wyndmoor, Pennsylvania	Edward T. Stotesbury	1917	Beaux-Arts	Horace Trumbauer
5	100,000+	Arden House	Harriman, New York	Edward Henry Harriman	1906	Gothic	Carrère and Hastings
6	96,582	Winterthur	Winterthur, Delaware	Henry Francis du Pont	1932	Manor house	Henry Francis du Pont
7	90,000	Inisfada	North Hills, New York	Nicholas Frederic Brady	1919	Tudor Revival	John Torrey Windrim
8	88,000	Meadow Brook Hall	Rochester Hills, Michigan	Matilda Dodge Wilson	1929	Tudor Revival	Smith Hinchman & Grylls
9	80,000	Harbor Hill	Roslyn, New York	Clarence Hungerford Mackay	1899	Châteauesque	McKim Mead & White
10	75,000	Lynnewood Hall	Elkins Park, Pennsylvania	Peter A. B. Widener	1900	Neoclassical	Horace Trumbauer
11	68,000	Il Palmetto	Palm Beach, Florida	Joseph E. Widener	1930	Mediterranean	Maurice Fatio
12	65,000	Carolands	Hillsborough, California	Harriet Pullman Carolan	1914	Beaux-Arts,Second Empire	Sanson,Ernest; Polk,Willis
13	65,000	The Breakers	Newport, Rhode Island	Cornelius Vanderbilt II	1895	Italian Renaissance Revival	Richard Morris Hunt
14	65,000	Rosecliff	Newport, Rhode Island	Theresa Fair Oelrichs	1902	Beaux-Arts	McKim Mead & White
15	64,500	Stan Hywet Hall	Akron, Ohio	Frank Seiberling	1915	Tudor Revival	Charles Sumner Schneider
16	64,000	Elstowe Manor	Elkins Park, Pennsylvania	William L. Elkins	1898	Italian Renaissance Revival	Horace Trumbauer
17	62,000	Blairsden	Peapack, New Jersey	Clinton Ledyard Blair	1903	Louis XIII	Carrère and Hastings
18	60,645	Hearst Castle	San Simeon, California	William Randolph Hearst	1919	Mediterranean Revival	Julia Morgan
19	60,000	Whitehall	Palm Beach, Florida	Henry Morrison Flagler	1902	Beaux-Arts	Carrère and Hastings
20	46,000	Nemours	Wilmington, Delaware	Alfred I. du Pont	1910	Louis XVI, Rococo	Carrère and Hastings

Largest privately owned houses by square footage

Rank	Square Footage	Name	Location	Owner	Year Completed	Architectural Style	Architect
1	175,000	Biltmore Estate	Asheville, North Carolina	William A.V. Cecil	1895	Châteauesque	Richard Morris Hunt
2	109,000	Oheka Castle	Huntington, New York	Gary Melius	1919	Châteauesque	Delano and Aldrich
3	88,198	Versailles	Windermere, Florida	David A. Siegel	Under Construction	French Provincial
4	84,626	La Reverie	Palm Beach, Florida	Sydell Miller	2001		Jeff Smith
5	72,215	Pensmore	Highlandville, Missouri	Steven T. Huff	Under Construction	Châteauesque
6	68,000	Il Palmetto	Palm Beach, Florida	James H. Clark	1930	Mediterranean	Maurice Fatio
7	67,033	2000 S Ocean Blvd	Manalapan, Florida	Unknown
8	66,395	Fairfield	Sagaponack, New York	Ira Rennert	2003		Ferguson and Shamamian
9	66,000	Xanadu 2.0	Medina, Washington	Bill Gates	1995	Pacific lodge	James Cutler
10	65,000	Carolands	Hillsborough, California	Charles Bartlett Johnson	1914	Beaux-Arts,Second Empire	Sanson,Ernest; Polk,Willis
11	63,599	545 N County Road	Palm Beach, Florida	Nelson Peltz
12	62,000	Blairsden	Peapack, New Jersey	Unknown	1903	Louis XIII	Carrère and Hastings
13	61,946	N. Ocean Boulevard	Ocean Ridge, Florida	Alvin Malnik
14	61,774	Maison de L'Amitie	Palm Beach, Florida	Dmitry Rybolovlev	1990
15	61,403	51 Winding Brook Drive	Saratoga Springs, New York	John Breyo
16	60,000	Château des Flores	Bellagio Road, Los Angeles, CA		Under Construction	Chateauesque	William Hefner
17	60,000	Rio Vista Drive	Alpine, New Jersey	Unknown
18	57,000	Eschman Meadows	Nashport, Ohio	Tami Longaberger	2001	Georgian	George Acock, Phil White
19	56,500	The Manor	Beverly Hills, California	Petra Ecclestone	1988	Châteauesque	James Langenheim & Associates
20	55,965	Hala Ranch	Aspen, Colorado	Bandar bin Sultan	1991		Hagman Yaw
21	54,000	Evander Holyfield Highway	Fairburn, Georgia	Evander Holyfield
22	52,800	Walker McCune Mansion	Paradise Valley, Arizona	Family of George A. Hormel	1962
23	51,657	50 Poplar Hill Drive	Farmington, Connecticut	Curtis Jackson	1985
24	50,900	Avon Mountain Road	West Hartford, Connecticut	Arnold Chase
25	50,022	7030 Tomiyasu Lane	Las Vegas, Nevada	Eric Peterson