# List of largest houses in the United States

This is a list of the 100+ largest extant and historic houses in the United States, ordered by area of the main house. The list includes houses that have been demolished, houses that are currently under construction, and buildings that are not currently, but were previously used as private homes.

## Largest houses

| Rank | Area | Name | Location | Built for | Owner | Year completed | Architectural style | Architect |
| 1 | 178,926 sq ft (16,622.8 m$^2$) | Biltmore Estate | Asheville, North Carolina | George Washington Vanderbilt II | The Biltmore Company | 1895 | Châteauesque | Richard Morris Hunt and Frederick Law Olmsted |
| 2 | 109,848 sq ft (10,205.2 m$^2$) | Lynnewood Hall | Elkins Park, Pennsylvania | Peter A. B. Widener | Lynnewood Hall Preservation Foundation | 1899 | Neoclassical | Horace Trumbauer |
| 3 | 109,000 sq ft (10,100 m$^2$) | Oheka Castle | West Hills, New York | Otto Hermann Kahn | Gary Melius | 1919 | Châteauesque | Delano and Aldrich |
| 4 | 105,000 sq ft (9,800 m$^2$) | The One | Bel Air, Los Angeles, California | Nile Niami | Richard Saghian | 2021 | Contemporary | Paul McClean |
| 5 (tie) | 100,000 sq ft (9,300 m$^2$) | Whitemarsh Hall | Wyndmoor, Pennsylvania | Edward T. Stotesbury | (demolished in 1980) | 1917 | Georgian | Horace Trumbauer |
| 23 (tie) | 60,000 sq ft (5,600 m$^2$) | Whitehall (Henry M. Flagler House) | Palm Beach, Florida | Henry Flagler | Henry Morrison Flagler Museum | 1901 | Beaux-Arts | Pottier & Stymus, Carrère and Hastings |
| 6 | 97,188 sq ft (9,029.1 m$^2$) | Arden House | Harriman, New York | Edward Henry Harriman | Mo Tianquan (via Research Center on Natural Conservation) | 1909 | Châteauesque | Carrère and Hastings |
| 7 | 96,582 sq ft (8,972.8 m$^2$) | Winterthur | Winterthur, Delaware | Henry Francis du Pont | Winterthur Museum, Garden and Library | 1932 | Georgian Revival | Henry Francis du Pont |
| 8 (tie) | 90,000 sq ft (8,400 m$^2$) | Cornelius Vanderbilt II House | New York, New York | Cornelius Vanderbilt II | (demolished in 1926) | 1882 | Châteauesque | George B. Post |
| 8 (tie) | 90,000 sq ft (8,400 m$^2$) | Shadow Lawn | West Long Branch, New Jersey | Hubert T. Parson | Monmouth University | 1927 | Beaux-Arts | Horace Trumbauer |
| 9 | 88,000 sq ft (8,200 m$^2$) | Meadow Brook Hall | Rochester Hills, Michigan | Matilda Dodge Wilson | Oakland University | 1929 | Tudor Revival | Smith Hinchman & Grylls |
| 10 | 85,000 sq ft (7,900 m$^2$) | Versailles | Windermere, Florida | David A. Siegel | David A. Siegel | (under construction) | Châteauesque | |
| 11 (tie) | 80,000 sq ft (7,400 m$^2$) | Florham | Florham Park, New Jersey | Hamilton and Florence Vanderbilt Twombly | Fairleigh Dickinson University | 1897 | Georgian Revival | McKim Mead & White |
| 11 (tie) | 80,000 sq ft (7,400 m$^2$) | Harbor Hill | Roslyn, New York | Clarence H. Mackay | (demolished in 1947) | 1899 | Châteauesque | McKim Mead & White |
| 12 | 75,000 sq ft (7,000 m$^2$) | Indian Neck Hall | Oakdale, New York | Frederick Gilbert Bourne | St. John's University | 1908 | Federal Style | Ernest Flagg |
| 13 | 72,215 sq ft (6,709.0 m$^2$) | Pensmore | Highlandville, Missouri | Steven T. Huff | Steven T. Huff | 2016 | Châteauesque | |
| 14 (tie) | 72,000 sq ft (6,700 m$^2$) | Inisfada | North Hills, New York | Nicholas Frederic Brady | (demolished in 2013) | 1919 | Tudor Revival | John Torrey Windrim |
| 14 (tie) | 72,000 sq ft (6,700 m$^2$) | Belton Court | Barrington, Rhode Island | Frederick Stanhope Peck | ShineHarmony, LLC (structure currently abandoned) | 1905 | Gothic Revival | Martin and Hall; George Frederic Hall |
| 15 (tie) | 70,000 sq ft (6,500 m$^2$) | Idle Hour | Oakdale, New York | William K. Vanderbilt | Mercury International | 1901 | English Country Style | Richard Howland Hunt |
| 15 (tie) | 70,000 sq ft (6,500 m$^2$) | Woodlea | Briarcliff Manor, New York | Elliott Fitch Shepard | Sleepy Hollow Country Club | 1895 | Italian Renaissance Revival | McKim, Mead & White |
| 16 | 68,500 sq ft (6,360 m$^2$) | Hearst Castle | San Simeon, California | William Randolph Hearst | California Department of Parks and Recreation | 1947 | Spanish Colonial Revival | Julia Morgan |
| 17 | 66,341 sq ft (6,163.3 m$^2$) | Grey Towers Castle | Glenside, Pennsylvania | William Welsh Harrison | Arcadia University | 1896 | Gothic Revival | Horace Trumbauer |
| 18 | 66,000 sq ft (6,100 m$^2$) | Bill Gates's house | Medina, Washington | Bill Gates | Bill Gates | 1995 | Pacific Lodge | James Cutler |
| 19 | 64,500 sq ft (5,990 m$^2$) | Stan Hywet Hall | Akron, Ohio | Frank Seiberling | Stan Hywet Hall Foundation | 1915 | Tudor Revival | Charles Sumner Schneider |
| 20 | 64,000 sq ft (5,900 m$^2$) | Fair Field | Sagaponack, New York | Ira Rennert | Ira Rennert | 2003 | Italian Renaissance | Mark Ferguson |
| 21 | 62,482 sq ft (5,804.8 m$^2$) | The Breakers | Newport, Rhode Island | Cornelius Vanderbilt II | Preservation Society of Newport County | 1895 | Italian Renaissance | Richard Morris Hunt |
| 22 | 62,220 sq ft (5,780 m$^2$) | Gemini | Manalapan, Florida | Gerard Barnes Lambert, Sr | Larry Ellison | 1940s | Mediterranean Revival | Marion Sims Wyeth Edson E. Dailey |
| 23 (tie) | 60,000 sq ft (5,600 m$^2$) | Pembroke | Glen Cove, New York | Joseph De Lamar | (demolished in 1968) | 1916 | Neoclassical | C.P.H. Gilbert |
| 24 (tie) | 60,000 sq ft (5,600 m$^2$) | El Mirasol | Palm Beach, Florida | Edward T. Stotesbury | (demolished in 1958) | 1920 | Spanish Colonial Revival | Addison Mizner |
| 25 (tie) | 60,000 sq ft (5,600 m$^2$) | San Sylmar | Sylmar, California | J.B. Nethercutt | Nethercutt–Richards family | 1971 | Art Deco | Tony Hinsbergen |
| 26 | 58,000 sq ft (5,400 m$^2$) | Duke Farms | Hillsborough Township, New Jersey | James Buchanan Duke | (demolished in 2016) | 1903 | Tudor Revival | Henry H. Kendall |
| 27 | 57,000 sq ft (5,300 m$^2$) | Eschman Meadows | Nashport, Ohio | Tami Longaberger | Awesome87 LLC and SPG87 LLC | 2001 | Georgian | George Acock Phil White |
| 28 | 56,881 sq ft (5,284.4 m$^2$) | Castle Hill | Ipswich, Massachusetts | Richard T. Crane Jr. | The Trustees of Reservations | 1928 | English Baroque | David Adler |
| 29 | 56,500 sq ft (5,250 m$^2$) | The Manor | Los Angeles, California | Aaron Spelling | Petra Ecclestone | 1988 | Châteauesque | James Langenheim & Associates |
| 30 | 56,368 sq ft (5,236.8 m$^2$) | Andrew Carnegie Mansion | New York, New York | Andrew Carnegie | Smithsonian Institution | 1901 | Georgian Revival | Babb, Cook & Willard |
| 31 | 56,000 sq ft (5,200 m$^2$) | Blairsden | Peapack-Gladstone, New Jersey | C. Ledyard Blair | T. Eric Galloway | 1903 | Châteauesque | Carrère and Hastings |
| 32 | 55,360 sq ft (5,143 m$^2$) | Ralston Hall | Belmont, California | William Chapman Ralston | Notre Dame de Namur University | 1864 | Italianate | Henry W. Cleaveland |
| 33 (tie) | 55,000 sq ft (5,100 m$^2$) | White House | Washington, D.C. | Federal government | National Park Service | 1800 | Neoclassical | James Hoban |
| 33 (tie) | 55,000 sq ft (5,100 m$^2$) | Belle Grove | White Castle, Louisiana | John Andrews | (demolished in 1952) | 1857 | Greek Revival Italianate | Henry Howard |
| 33 (tie) | 55,000 sq ft (5,100 m$^2$) | Elm Court | Lenox, Massachusetts | Emily Thorn Vanderbilt | Travaasa Experiential Resorts | 1885 | American Shingle Style | Peabody and Stearns |
| 33 (tie) | 55,000 sq ft (5,100 m$^2$) | Roundwood Manor | Hunting Valley, Ohio | Van Sweringen brothers | Sylvia Korey | 1929 | Colonial Revival | Philip Lindsley Small |
| 33 (tie) | ~55,000 sq ft (5,100 m$^2$) | Rockwood Hall | Mount Pleasant, New York | William Rockefeller | (demolished in 1942) | 1849 | Castellated Elizabethan | Gervase Wheeler, Carrère and Hastings |
| 34 | 54,838 sq ft (5,094.6 m$^2$) | Dumbarton Oaks | Washington, D.C. | William Hammond Dorsey | Harvard University | 1801 | Colonial Revival | |
| 35 | 54,400 sq ft (5,050 m$^2$) | Chateau Montagel | Shoal Creek, Alabama | Larry House | Medical Cloud Computing, LLC | 1997 | Châteauesque | Bill Shephard |
| 36 | 54,246 sq ft (5,039.6 m$^2$) | Searles Castle | Great Barrington, Massachusetts | Mary Hopkins Searles | Hunt Slonem | 1883 | Châteauesque | McKim Mead & White |
| 37 | 53,000 sq ft (4,900 m$^2$) | Nottoway | White Castle, Louisiana | John Hampden Randolph | Paul Ramsay Foundation | 1858 | Greek Revival Italianate | Henry Howard |
| 38 | 52,897 sq ft (4,914.3 m$^2$) | Hala Ranch | Aspen, Colorado | Bandar bin Sultan | John Paulson | 1991 | Rustic | Hagman Yaw |
| 39 | 52,300 sq ft (4,860 m$^2$) | Felix M. Warburg House | New York, New York | Felix M. Warburg | Jewish Museum of New York | 1906 | Châteauesque | Charles Pierrepont Henry Gilbert |
| 40 | 52,000 sq ft (4,800 m$^2$) | Villa de Formosa | Newport Beach, California | Joe C. Wen | Joe C. Wen | 2019 | Italianate | Brian Biglin |
| 41 | 51,000 sq ft (4,700 m$^2$) | Hacienda De La Paz | Rolling Hills, California | John Z. Blazevich | John Z. Blazevich | 2008 | Spanish Colonial Revival | Rafael Manzano Martos |
| 42 | 50,853 sq ft (4,724.4 m$^2$) | Chase Mansion | West Hartford, Connecticut | Arnold Chase | Arnold Chase | 2009 | Georgian | Allan Greenberg |
| 43 | 50,729 sq ft (4,712.9 m$^2$) | Perry Belmont House | Washington, D.C. | Perry Belmont | Order of the Eastern Star | 1909 | Beaux-Arts | Ernest Sanson Horace Trumbauer |
| 44 | 50,316 sq ft (4,674.5 m$^2$) | Otto H. Kahn House | New York, New York | Otto Hermann Kahn | Convent of the Sacred Heart | 1914 | Renaissance Revival | J. Armstrong Stenhouse Charles Pierrepont Henry Gilbert |
| 45 | 50,302 sq ft (4,673.2 m$^2$) | Hillside School | Berkeley, California | Berkeley Unified School District | Sam Seppala | 1925 | Tudor Revival | Walter H. Ratcliff |
| 46 (tie) | 50,000 sq ft (4,600 m$^2$) | Crocker-McMillin Mansion | Mahwah, New Jersey | George Crocker | Ilija Pavlovic | 1907 (renovated before 2018) | | James Brite and Henry Bacon |
| 46 (tie) | 50,000 sq ft (4,600 m$^2$) | Reid Hall | Purchase, New York | Whitelaw Reid | Manhattanville University | 1892 | Renaissance Revival | Stanford White |
| 46 (tie) | 50,000 sq ft (4,600 m$^2$) | Wingwood House | Bar Harbor, Maine | Alexander Cassatt | (demolished in 1953) | 1903 | Neoclassical | Louis Magaziner |
| 46 (tie) | 50,000 sq ft (4,600 m$^2$) | Riverside | New York, New York | Charles M. Schwab | (demolished in 1948) | 1906 | Châteauesque | Maurice Hébert |
| 46 (tie) | 50,000 sq ft (4,600 m$^2$) | Hempstead House | Sands Point, New York | Howard Gould | Nassau County, New York | 1912 | Tudor Revival | Richard Howland Hunt |
| 46 (tie) | 50,000 sq ft (4,600 m$^2$) | 4545 NE Ocean Boulevard | Jensen Beach, Florida | Robert Eustace | Robert Eustace | 2007 | Italianate | |
| 47 | 49,842 sq ft (4,630.5 m$^2$) | Lutcher Brown Estate | Terrell Hills, TX | H. Lutcher Brown} | Candace Humphreys | 1938 | Neo Classical | Robert M. Ayres |
| 48 | 49,568 sq ft (4,605.0 m$^2$) | 8271 E Left Hand Fork Hobble Creek | Springville, Utah | Tom Mower | Tom Mower | 2010 | Italian Renaissance | Kevin Scholz |
| 49 | 49,300 sq ft (4,580 m$^2$) | The Pritzker Estate | Los Angeles, California | Anthony Pritzker | Anthony Pritzker | 2010 | Contemporary | Grant Camden Kirkpatrick |
| 50 | 49,240 sq ft (4,575 m$^2$) | 32088 SW Peach Cove Road | West Linn, Oregon | Mark Wattles | Richard Stanley | (under construction) | | |
| 51 | 49,000 sq ft (4,600 m$^2$) | Ziff Mansion | Pawling, New York | William Bernard Ziff, Jr. | Dirk Edward Ziff | 2000 | | |
| 52 | 48,515 sq ft (4,507.2 m$^2$) | 50 Poplar Hill Drive | Farmington, Connecticut | Benjamin Sisti | Casey Askar | 1985 | Contemporary | |
| 53 | 48,438 sq ft (4,500.0 m$^2$) | 1299 Via Tivoli | Henderson, Nevada | Pierre Omidyar | Pierre Omidyar | 2010 | Modern architecture | |
| 54 | 48,000 sq ft (4,500 m$^2$) | Champ d'Or Estate | Hickory Creek, Texas | Alan H. Goldfield | “The Olana” Walter Wedding Estates | 2002 | French Baroque Architecture |
| 55 | 47,000 sq ft (4,400 m$^2$) | Nemours | Wilmington, Delaware | Alfred I. du Pont | Nemours Foundation | 1909 | Neoclassical | Carrère and Hastings |
| 56 | 46,054 sq ft (4,278.6 m$^2$) | Greystone Mansion | Beverly Hills, California | Edward L. Doheny | City of Beverly Hills | 1928 | Tudor Revival | Gordon Kaufmann |
| 57 | 46,050 sq ft (4,278 m$^2$) | Carolands | Hillsborough, California | Harriet Pullman Carolan | Charles Bartlett Johnson | 1914 | Second Empire | Ernest Sanson Willis Polk |
| 58 | 46,000 sq ft (4,300 m$^2$) | Elstowe Manor | Elkins Park, Pennsylvania | William L. Elkins | Landmark Venues | 1898 | Italian Renaissance | Horace Trumbauer |
| 59 | 45,891 sq ft (4,263.4 m$^2$) | 457 Bel Air Road | Los Angeles, California | Beny Alagem | Beny Alagem | 2006 | French Normandy | Robert A.M. Stern |
| 60 | 45,854 sq ft (4,260.0 m$^2$) | Villa Collina | Moorestown, New Jersey | Vernon Hill | Vernon Hill | 2002 | Italian Renaissance | |
| 61 | 45,843 sq ft (4,259.0 m$^2$) | Townsend House | Washington, D.C. | Richard T. Townsend | Cosmos Club | 1901 | Beaux-Arts | Carrère and Hastings |
| 62 (tie) | 45,000 sq ft (4,200 m$^2$) | Illinois Executive Mansion | Springfield, Illinois | State of Illinois | State of Illinois | 1855 | Georgian Revival | John M. Van Osdel |
| 62 (tie) | 45,000 sq ft (4,200 m$^2$) | Yaddo | Saratoga Springs, New York | Spencer Trask | Corporation of Yaddo | 1893 | Tudor Revival | William Halsey Wood |
| 62 (tie) | 45,000 sq ft (4,200 m$^2$) | Darlington | Mahwah, New Jersey | George Crocker | Jaime Garrido | 1907 | Jacobean | James Brite |
| 62 (tie) | 45,000 sq ft (4,200 m$^2$) | Henry Clay Frick House | New York, New York | Henry Clay Frick | Frick Collection | 1914 | Beaux-Arts | Carrère and Hastings |
| 63 | 44,936 sq ft (4,174.7 m$^2$) | Anderson House | Washington, D.C. | Larz Anderson | Society of the Cincinnati | 1905 | Beaux-Arts | Arthur Little Herbert Browne |
| 64 | 44,925 sq ft (4,173.7 m$^2$) | Le Palais | Beverly Hills, California | Mohamed Hadid | Lola Karimova-Tillyaeva | 2011 | Châteauesque | |
| 65 | 44,309 sq ft (4,116.4 m$^2$) | Glencairn | Bryn Athyn, Pennsylvania | Raymond Pitcairn | The New Church | 1938 | Romanesque | Raymond Pitcairn |
| 66 | 44,234 sq ft (4,109.5 m$^2$) | Villa Vittoriosa | Fayetteville, Georgia | Evander Holyfield | Rick Ross | 1994 | Neoclassical | Portman Fuchtman Vinson Sunderland |
| 67 | 44,229 sq ft (4,109.0 m$^2$) | Ochre Court | Newport, Rhode Island | Ogden Goelet | Salve Regina University | 1892 | Châteauesque | Richard Morris Hunt |
| 68 | 44,000 sq ft (4,100 m$^2$) | Hyde Park | Hyde Park, New York | Frederick Vanderbilt | National Park Service | 1899 | Beaux-Arts | Charles Follen McKim |
| 69 | 43,793 sq ft (4,068.5 m$^2$) | Boldt Castle | Alexandria Bay, New York | George Boldt | Thousand Islands Bridge Authority | 1904 | Chateauesque | G.W. & W.D. Hewitt |
| 70 | 43,561 sq ft (4,046.9 m$^2$) | Marland Mansion | Ponca City, Oklahoma | Ernest Whitworth Marland | City of Ponca City | 1928 | Mediterranean Revival | John Duncan Forsyth |
| 71 | 43,557 sq ft (4,046.6 m$^2$) | 901 Trophy Hills Drive | Las Vegas, Nevada | Sheldon Adelson | | 2013 | | |
| 72 | 43,515 sq ft (4,042.7 m$^2$) | Asherwood | Carmel, Indiana | Melvin Simon | Great American Songbook Foundation | 1999 | Chateauesque | |
| 73 | 43,040 sq ft (3,999 m$^2$) | Primatara | Springfield, Missouri | Robert Low | Robert Low | (under construction) | | Richard Drummond Davis |
| 74 | 42,831 sq ft (3,979.1 m$^2$) | Château des Fleurs | Los Angeles, California | James A. Kaplan | James A. Kaplan | 2014 | Chateauesque | William Hefner |
| 75 | 42,014 sq ft (3,903.2 m$^2$) | 51 Winding Brook Drive | Saratoga Springs, New York | John Breyo | John Breyo | 2006 | Mediterranean Revival | Robert Flansburg |
| 76 (tie) | 42,000 sq ft (3,900 m$^2$) | Payne Mansion | Esopus, New York | Oliver Hazard Payne | Marist College | 1911 | Beaux-Arts | Carrère and Hastings |
| 76 (tie) | ~42,000 sq ft (3,900 m$^2$) | Mar-a-Lago | Palm Beach, Florida | Marjorie Merriweather Post | Donald J. Trump | 1927 | Mediterranean Revival architecture | Marion Sims Wyeth (exterior) Joseph Urban (interior) |
| 76 (tie) | 42,000 sq ft (3,900 m$^2$) | Rose Terrace | Grosse Pointe Farms, Michigan | Anna Thompson Dodge | (demolished in 1976) | 1931 | Neoclassical | Horace Trumbauer |
| 77 | 41,774 sq ft (3,880.9 m$^2$) | Le Palais Royal | Hillsboro Beach, Florida | Robert Pereira | Robert Pereira | 2014 | Beaux-Arts | Denio Madera |
| 78 (tie) | 41,000 sq ft (3,800 m$^2$) | Hayes Mansion - San Jose, a Curio Collection by Hilton | San Jose, California | Mary Hayes Chynoweth | JMA Ventures | 1905 | Mediterranean Revival | George Page |
| 78 (tie) | 41,000 sq ft (3,800 m$^2$) | NYIT de Seversky Mansion | Old Westbury, New York | Alfred I. du Pont | New York Institute of Technology | 1918 | Georgian Revival | Carrère and Hastings |
| 79 | 40,916 sq ft (3,801.2 m$^2$) | Il Palmetto | Palm Beach, Florida | Joseph E. Widener | James H. Clark | 1927 | Mediterranean Revival | Maurice Fatio |
| 80 | 40,280 sq ft (3,742 m$^2$) | Walker McCune Mansion | Paradise Valley, Arizona | Walker McCune | George A. Hormel family | 1962 | Contemporary | |
| 81 | 40,050 sq ft (3,721 m$^2$) | Carolands | Hillsborough, California | Harriet Pullman Carolan | Charles Bartlett Johnson | 1914 | Second Empire | Ernest Sanson Willis Polk |
| 82 (tie) | 40,000 sq ft (3,700 m$^2$) | Mills Mansion | Hyde Park, New York | Ogden Mills | New York State Office of Parks, Recreation and Historic Preservation | 1896 | Beaux-Arts | Stanford White |
| 82 (tie) | 40,000 sq ft (3,700 m$^2$) | The Braes | Glen Cove, New York | Herbert L. Pratt | Webb Institute | 1912 | Jacobean | James Brite |
| 82 (tie) | 40,000 sq ft (3,700 m$^2$) | Coe Hall | Upper Brookville, New York | William Robertson Coe | Planting Fields Foundation | 1921 | Tudor Revival | Guy Lowell |
| 82 (tie) | 40,000 sq ft (3,700 m$^2$) | Rynwood | Old Brookville, New York | Samuel Agar Salvage | John Mariani Jr | 1927 | Tudor Revival | Roger Bullard |
| 82 (tie) | 40,000 sq ft (3,700 m$^2$) | 10697 Somma Way | Los Angeles, California | Ty Cueva | Ty Cueva | 2017 | Spanish Colonial Revival | |
| 83 | 39,648 sq ft (3,683.4 m$^2$) | Seaview Terrace | Newport, Rhode Island | Edson Bradley | Martin Carey | 1925 | Chateauesque | Howard Greenley |
| 84 | 39,400 sq ft (3,660 m$^2$) | 137 Beech Ridge Dr ’Villa Noci’ | Bell Acres, Pennsylvania | Joseph Nocito Sr. | | 2003 | Chateauesque | |
| 85 (tie) | 38,000 sq ft (3,500 m$^2$) | 5501 W Hamilton Road S ‘Pizza Hut Mansion’ | Fort Wayne, Indiana | Dick Freeland | Dick Freeland | 1997 | Chateauesque | |
| 85 (tie) | 38,000 sq ft (3,500 m$^2$) | Vizcaya Museum and Gardens | Miami, Florida | James Deering | Miami-Dade County | 1916 | Mediterranean Revival Style | F. Burrall Hoffman |
| 85 (tie) | 38,000 sq ft (3,500 m$^2$) | Charles Gates Mansion | Minneapolis, Minnesota | Charles Gilbert Gates | Demolished in 1933 | 1914 | Renaissance Revival | |