Largest houses in the U.S.
Square footage
- Square footage
- Year completed
- Architectural style
- 179K - 109K
- 109K - 90,001
- 90,000 - 72,001
- 72,000 - 60,001
- 60,000 - 53,001
- 53,000 - 46,001
- 46,000 - 39,000
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| Name | Square footage | City | State | Year completed | Built for | Architectural style | Owner | Architect | Image |
|---|
| Name | Square footage | City | State | Year completed | Built for | Architectural style | Owner | Architect | Image |
|---|---|---|---|---|---|---|---|---|---|
| Biltmore Estate | 178,926 | Asheville | North Carolina | 1895 | George Washington Vanderbilt II | Châteauesque | The Biltmore Company | Richard Morris Hunt and Frederick Law Olmsted | https://upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Biltmore_Estate%2C_Asheville%2C_North_Carolina.jpg/298px-Biltmore_Estate%2C_Asheville%2C_North_Carolina.jpg |
| Oheka Castle | 109,000 | West Hills | New York | 1919 | Otto Hermann Kahn | Châteauesque | Gary Melius | Delano and Aldrich | https://upload.wikimedia.org/wikipedia/commons/thumb/6/69/OHEKA_CASTLE_exterior_view_2.jpg/300px-OHEKA_CASTLE_exterior_view_2.jpg |
| Whitemarsh Hall | 100,000 | Wyndmoor | Pennsylvania | 1917 | Edward T. Stotesbury | Georgian | n/a | Horace Trumbauer | https://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Whitemarsh_Hall.jpg/300px-Whitemarsh_Hall.jpg |
| Arden House | 97,188 | Harriman | New York | 1909 | Edward Henry Harriman | Châteauesque | Mo Tianquan | Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Arden_House_1.jpg/300px-Arden_House_1.jpg |
| Winterthur | 96,582 | Winterthur | Delaware | 1932 | Henry Francis du Pont | Georgian Revival | Winterthur Museum, Garden and Library | Henry Francis du Pont | https://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Winterthur_Museum_-_DSC01316.JPG/300px-Winterthur_Museum_-_DSC01316.JPG |
| Cornelius Vanderbilt II House | 90,000 | New York | New York | 1882 | Cornelius Vanderbilt II | Châteauesque | n/a | George B. Post | https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Cornelius_Vanderbilt_II_House.jpg/300px-Cornelius_Vanderbilt_II_House.jpg |
| Shadow Lawn | 90,000 | West Long Branch | New Jersey | 1927 | Hubert T. Parson | Beaux-Arts | Monmouth University | Horace Trumbauer | https://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Woodrow_Wilson_Hall%2C_West_Long_Branch%2C_NJ_-_south_view.jpg/300px-Woodrow_Wilson_Hall%2C_West_Long_Branch%2C_NJ_-_south_view.jpg |
| Meadow Brook Hall | 88,000 | Rochester Hills | Michigan | 1929 | Matilda Dodge Wilson | Tudor Revival | Oakland University | Smith Hinchman & Grylls | https://upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Meadowbrook_Hall.JPG/300px-Meadowbrook_Hall.JPG |
| Versailles | 85,000 | Windermere | Florida | Under construction | David A. Siegel | Châteauesque | David A. Siegel | n/a | https://upload.wikimedia.org/wikipedia/en/thumb/1/18/Versailles_home_in_Lake_Butler_Sound.jpg/300px-Versailles_home_in_Lake_Butler_Sound.jpg |
| Florham | 80,000 | Florham Park | New Jersey | 1897 | Hamilton and Florence Vanderbilt Twombly | Georgian Revival | Fairleigh Dickinson University | McKim Mead & White | https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Florham_Park_from_the_mini-drone.jpg/300px-Florham_Park_from_the_mini-drone.jpg |
| Harbor Hill | 80,000 | Roslyn | New York | 1899 | Clarence H. Mackay | Châteauesque | n/a | McKim Mead & White | https://upload.wikimedia.org/wikipedia/commons/thumb/9/99/Harborhillaerial.JPG/300px-Harborhillaerial.JPG |
| Indian Neck Hall | 75,000 | Oakdale | New York | 1908 | Frederick Gilbert Bourne | Federal Style | St. John's University | Ernest Flagg | https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/The_Mansion.jpg/300px-The_Mansion.jpg |
| Pensmore | 72,215 | Highlandville | Missouri | 2016 | Steven T. Huff | Châteauesque | Steven T. Huff | n/a | https://upload.wikimedia.org/wikipedia/commons/thumb/5/55/ChateauPensmore.jpg/300px-ChateauPensmore.jpg |
| Inisfada | 72,000 | North Hills | New York | 1919 | Nicholas Frederic Brady | Tudor Revival | n/a | John Torrey Windrim | https://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Inisfada_Mansion.png/300px-Inisfada_Mansion.png |
| Idle Hour | 70,000 | Oakdale | New York | 1901 | William K. Vanderbilt | English Country Style | Dowling College | Richard Howland Hunt | https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Idle_Hour_01.jpg/300px-Idle_Hour_01.jpg |
| Woodlea | 70,000 | Briarcliff Manor | New York | 1895 | Elliott Fitch Shepard | Italian Renaissance Revival | Sleepy Hollow Country Club | McKim, Mead & White | https://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Woodlea_in_Briarcliff_Manor_%284%29.tif/lossless-page1-300px-Woodlea_in_Briarcliff_Manor_%284%29.tif.png |
| Lynnewood Hall | 70,000 | Elkins Park | Pennsylvania | 1900 | Peter A. B. Widener | Neoclassical | Richard Yoon | Horace Trumbauer | https://upload.wikimedia.org/wikipedia/commons/thumb/e/e4/LynnewoodHall_front.jpg/300px-LynnewoodHall_front.jpg |
| Hearst Castle | 68,500 | San Simeon | California | 1947 | William Randolph Hearst | Spanish Colonial Revival | California Department of Parks and Recreation | Julia Morgan | https://upload.wikimedia.org/wikipedia/commons/thumb/3/30/Hearst_Castle_Casa_Grande_September_2012_panorama_2.jpg/300px-Hearst_Castle_Casa_Grande_September_2012_panorama_2.jpg |
| Grey Towers Castle | 66,341 | Glenside | Pennsylvania | 1896 | William Welsh Harrison | Gothic Revival | Arcadia University | Horace Trumbauer | https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/GreyTowers3.JPG/300px-GreyTowers3.JPG |
| Xanadu 2.0 | 66,000 | Medina | Washington | 1995 | Bill Gates | Pacific Lodge | Bill Gates | James Cutler | https://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Residence_of_Bill_Gates.jpg/300px-Residence_of_Bill_Gates.jpg |
| Stan Hywet Hall | 64,500 | Akron | Ohio | 1915 | Frank Seiberling | Tudor Revival | Stan Hywet Hall Foundation | Charles Sumner Schneider | https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Stan_Hywet.jpg/300px-Stan_Hywet.jpg |
| Fair Field | 64,000 | Sagaponack | New York | 2003 | Ira Rennert | Italian Renaissance | Ira Rennert | Mark Ferguson | https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Ira_Rennert_house.jpg/300px-Ira_Rennert_house.jpg |
| Mar-a-Lago | 62,500 | Palm Beach | Florida | 1927 | Marjorie Merriweather Post | Spanish Colonial Revival | Donald Trump | Marion Sims Wyeth and Joseph Urban | |
| The Breakers | 62,482 | Newport | Rhode Island | 1895 | Cornelius Vanderbilt II | Italian Renaissance | Preservation Society of Newport County | Richard Morris Hunt | https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/Breakers_drive.png/300px-Breakers_drive.png |
| Gemini | 62,220 | Manalapan | Florida | 1940 | Gerard Barnes Lambert, Sr | Mediterranean Revival | Dirk Edward Ziff | Marion Sims Wyeth and Edson E. Dailey | |
| El Mirasol | 60,000 | Palm Beach | Florida | 1920 | Edward T. Stotesbury | Spanish Colonial Revival | n/a | Addison Mizner | https://upload.wikimedia.org/wikipedia/commons/thumb/1/1e/El_Mirasol%2C_Palm_Beach%2C_FL.jpg/300px-El_Mirasol%2C_Palm_Beach%2C_FL.jpg |
| Pembroke | 60,000 | Glen Cove | New York | 1916 | Joseph De Lamar | Neoclassical | n/a | C.P.H. Gilbert | |
| Tower of Beauty | 60,000 | Sylmar | California | 1971 | J.B. Nethercutt | Art Deco | Nethercutt-Richards family | Tony Hinsbergen | |
| Duke Farms | 58,000 | Hillsborough Township | New Jersey | 1903 | James Buchanan Duke | Tudor Revival | n/a | Henry H. Kendall | |
| Eschman Meadows | 57,000 | Nashport | Ohio | 2001 | Tami Longaberger | Georgian | Awesome87 LLC and SPG87 LLC | George Acock Phil White | |
| Castle Hill | 56,881 | Ipswich | Massachusetts | 1928 | Richard T. Crane Jr. | English Baroque | The Trustees of Reservations | David Adler | https://upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Crane_estate_%285%29.jpg/300px-Crane_estate_%285%29.jpg |
| Andrew Carnegie Mansion | 56,368 | New York | New York | 1901 | Andrew Carnegie | Georgian Revival | Smithsonian Institution | Babb, Cook & Willard | https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Cooper-Hewitt-MattFlynnAHHP.jpg/300px-Cooper-Hewitt-MattFlynnAHHP.jpg |
| Blairsden | 56,000 | Peapack-Gladstone | New Jersey | 1903 | Clinton Ledyard Blair | Châteauesque | T. Eric Galloway | Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/Blairsden_1.png/300px-Blairsden_1.png |
| Ralston Hall | 55,360 | Belmont | California | 1864 | William Chapman Ralston | Italianate | Notre Dame de Namur University | Henry W. Cleaveland | https://upload.wikimedia.org/wikipedia/commons/thumb/a/a6/SOUTHWEST_FRONT_-_Ralston_Hall%2C_Ralston_Avenue%2C_Belmont%2C_San_Mateo_County%2C_CA_HABS_CAL%2C41-BELM%2C1-20_%28CT%29.tif/lossy-page1-300px-SOUTHWEST_FRONT_-_Ralston_Hall%2C_Ralston_Avenue%2C_Belmont%2C_San_Mateo_County%2C_CA_HABS_CAL%2C41-BELM%2C1-20_%28CT%29.tif.jpg |
| Elm Court | 55,000 | Lenox | Massachusetts | 1885 | Emily Thorn Vanderbilt | American Shingle Style | Travaasa Experiential Resorts | Peabody and Stearns | https://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Elm_Court%2C_Lenox_MA.jpg/300px-Elm_Court%2C_Lenox_MA.jpg |
| White House | 55,000 | Washington D.C. | n/a | 1800 | United States of America | Neoclassical | National Park Service | James Hoban | https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/White_House_DC.JPG/300px-White_House_DC.JPG |
| Belle Grove | 55,000 | White Castle | Louisiana | 1857 | John Andrews | Greek Revival | n/a | Henry Howard | https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Belle_Grove_Plantation_13.jpg/300px-Belle_Grove_Plantation_13.jpg |
| Rockwood Hall | 55,000 | Mount Pleasant | New York | 1849 | William Rockefeller | Castellated Elizabethan | n/a | Gervase Wheeler, Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/William_Rockefeller_Home.png/300px-William_Rockefeller_Home.png |
| Roundwood Manor | 55,000 | Hunting Valley | Ohio | 1929 | Van Sweringen brothers | Colonial Revival | Sylvia Korey | Philip Lindsley Small | |
| Dumbarton Oaks | 54,838 | Washington D.C. | n/a | 1801 | William Hammond Dorsey | Colonial Revival | Harvard University | n/a | |
| Chateau Montagel | 54,400 | Shoal Creek | Alabama | 1997 | Larry House | Châteauesque | Medical Cloud Computing, LLC | Bill Shephard | https://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Chateau_Montagel.jpg/300px-Chateau_Montagel.jpg |
| Searles Castle | 54,246 | Great Barrington | Massachusetts | 1883 | Mary Hopkins Searles | Châteauesque | John Dewey Academy | McKim Mead & White | https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Searles_Castle%2C_Great_Barrington_MA.jpg/300px-Searles_Castle%2C_Great_Barrington_MA.jpg |
| Nottoway | 53,000 | White Castle | Louisiana | 1858 | John Hampden Randolph | Greek Revival | Paul Ramsay Foundation | Henry Howard | https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Nottoway_Plantation.JPG/300px-Nottoway_Plantation.JPG |
| Hala Ranch | 52,897 | Aspen | Colorado | 1991 | Bandar bin Sultan | Rustic | John Paulson | Hagman Yaw | |
| The Manor | 52,503 | Los Angeles | California | 1988 | Aaron Spelling | Châteauesque | Petra Ecclestone | James Langenheim & Associates | https://upload.wikimedia.org/wikipedia/commons/thumb/6/61/The_Manor%2C_Holmby_Hills%2C_Los_Angeles%2C_in_2008.jpg/300px-The_Manor%2C_Holmby_Hills%2C_Los_Angeles%2C_in_2008.jpg |
| Felix M. Warburg House | 52,300 | New York | New York | 1906 | Felix M. Warburg | Châteauesque | Jewish Museum of New York | Charles Pierrepont Henry Gilbert | https://upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Felix_Warburg_Mansion_001_stitched.jpg/300px-Felix_Warburg_Mansion_001_stitched.jpg |
| Hacienda De La Paz | 51,000 | Rolling Hills | California | 2008 | John Z. Blazevich | Spanish Colonial Revival | John Z. Blazevich | Rafael Manzano Martos | |
| Chase Mansion | 50,853 | West Hartford | Connecticut | 2009 | Arnold Chase | Georgian | Arnold Chase | Allan Greenberg | |
| Perry Belmont House | 50,729 | Washington D.C. | n/a | 1909 | Perry Belmont | Beaux-Arts | Order of the Eastern Star | Ernest Sanson Horace Trumbauer | https://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Belmont_Mansion_%28Washington%2C_D.C.%29.JPG/300px-Belmont_Mansion_%28Washington%2C_D.C.%29.JPG |
| Otto H. Kahn House | 50,316 | New York | New York | 1914 | Otto Hermann Kahn | Renaissance Revival | Convent of the Sacred Heart | J. Armstrong Stenhouse Charles Pierrepont Henry Gilbert | https://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Otto_Kahn_Mansion_010_stitched.jpg/300px-Otto_Kahn_Mansion_010_stitched.jpg |
| Hillside Elementary School | 50,302 | Berkeley | California | 1925 | Berkeley Unified School District | Tudor Revival | Samuli Seppälä | Walter H. Ratcliff | https://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Hillside_School_Aerial_from_south.jpg/300px-Hillside_School_Aerial_from_south.jpg |
| Hempstead House | 50,000 | Sands Point | New York | 1912 | Howard Gould | Tudor Revival | Nassau County, New York | Richard Howland Hunt | https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/HempsteadHouseSandsPoint.jpg/300px-HempsteadHouseSandsPoint.jpg |
| Reid Hall | 50,000 | Purchase | New York | 1892 | Whitelaw Reid | Renaissance Revival | Manhattanville College | Stanford White | https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/ManhattanvilleCollegeCastleSpringtime.jpg/300px-ManhattanvilleCollegeCastleSpringtime.jpg |
| Riverside | 50,000 | New York | New York | 1906 | Charles M. Schwab | Châteauesque | n/a | Maurice Hébert | https://upload.wikimedia.org/wikipedia/commons/thumb/7/74/Charles_M._Schwab_House.jpg/300px-Charles_M._Schwab_House.jpg |
| Crocker-McMillin Mansion | 50,000 | Mahwah | New Jersey | 1907 | George Crocker | n/a | Ilija Pavlovic | James Brite and Henry Bacon | |
| Wingwood House | 50,000 | Bar Harbor | Maine | 1903 | Alexander Cassatt | Neoclassical | n/a | Louis Magaziner | |
| Seven Springs | 50,000 | Bedford | New York | 1919 | Eugene Meyer | n/a | Donald Trump | n/a | |
| Chateau Bray | 49,951 | Madisonville | Texas | Under construction | Jim Waller | French Baroque | James and Sonya Bray | Fonseca Design Group | https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/6700-a.jpg/300px-6700-a.jpg |
| Lutcher Brown Estate | 49,842 | Terrell Hills | Texas | 1938 | H. Lutcher Brown | Neo Classical | n/a | Robert M. Ayres | |
| 8271 E Left Hand Fork Hobble Creek | 49,568 | Springville | Utah | 2010 | Tom Mower | Italian Renaissance | Tom Mower | n/a | |
| The Pritzker Estate | 49,300 | Los Angeles | California | 2010 | Anthony Pritzker | Contemporary | Anthony Pritzker | Grant Camden Kirkpatrick | |
| Ziff Mansion | 49,000 | Pawling | New York | 2000 | William Bernard Ziff, Jr. | n/a | Dirk Edward Ziff | n/a | |
| 50 Poplar Hill Drive | 48,515 | Farmington | Connecticut | 1985 | Benjamin Sisti | Contemporary | Casey Askar | n/a | |
| 1299 Via Tivoli | 48,438 | Henderson | Nevada | 2010 | Pierre Omidyar | Modern architecture | Pierre Omidyar | n/a | |
| Nemours | 47,000 | Wilmington | Delaware | 1909 | Alfred I. du Pont | Neoclassical | Nemours Foundation | Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/6/6b/Nemours_Mansion.JPG/300px-Nemours_Mansion.JPG |
| Greystone Mansion | 46,054 | Beverly Hills | California | 1928 | Edward L. Doheny | Tudor Revival | City of Beverly Hills | Gordon Kaufmann | https://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Greystone_Mansion.JPG/300px-Greystone_Mansion.JPG |
| Elstowe Manor | 46,000 | Elkins Park | Pennsylvania | 1898 | William L. Elkins | Italian Renaissance | Dominican Sisters of St. Catherine de' Ricci | Horace Trumbauer | https://upload.wikimedia.org/wikipedia/commons/thumb/a/a9/Elstowe_Manor%2C_Elkins_Estate_01.JPG/300px-Elstowe_Manor%2C_Elkins_Estate_01.JPG |
| 457 Bel Air Road | 45,891 | Los Angeles | California | 2006 | Beny Alagem | French Normandy | Beny Alagem | Robert A.M. Stern | https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/A02009-ESTO-2009A53.411_0.jpg/300px-A02009-ESTO-2009A53.411_0.jpg |
| Villa Collina | 45,854 | Moorestown | New Jersey | 2002 | Vernon Hill | Italian Renaissance | Vernon Hill | n/a | |
| Townsend House | 45,842 | Washington D.C. | n/a | 1901 | Richard T. Townsend | Beaux-Arts | Cosmos Club | Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Cosmos_Club_-_Blizzard_of_2010.JPG/300px-Cosmos_Club_-_Blizzard_of_2010.JPG |
| Yaddo | 45,000 | Saratoga Springs | New York | 1893 | Spencer Trask | Tudor Revival | Corporation of Yaddo | William Halsey Wood | https://upload.wikimedia.org/wikipedia/commons/thumb/3/3d/The_Mansion_at_Yaddo_%28ca._1905%29.jpg/300px-The_Mansion_at_Yaddo_%28ca._1905%29.jpg |
| Illinois Executive Mansion | 45,000 | Springfield | Illinois | 1855 | State of Illinois | Georgian Revival | State of Illinois | John M. Van Osdel | https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Executive_Mansion.JPG/300px-Executive_Mansion.JPG |
| Henry Clay Frick House | 45,000 | New York | New York | 1914 | Henry Clay Frick | Beaux-Arts | Frick Collection | Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/Henry_C_Frick_House_009.JPG/300px-Henry_C_Frick_House_009.JPG |
| Darlington | 45,000 | Mahwah | New Jersey | 1907 | George Crocker | Jacobean | Ilija Pavlovic | James Brite | https://upload.wikimedia.org/wikipedia/commons/thumb/f/f4/CROCKER-McMILLIN_MANSION_-_IMMACULATE_CONCEPTION_SEMINARY%2C_MAHWAH%2C_BERGEN_COUNTY.jpg/300px-CROCKER-McMILLIN_MANSION_-_IMMACULATE_CONCEPTION_SEMINARY%2C_MAHWAH%2C_BERGEN_COUNTY.jpg |
| Anderson House | 44,936 | Washington D.C. | n/a | 1905 | Larz Anderson | Beaux-Arts | Society of the Cincinnati | Arthur Little Herbert Browne | https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Larz_Anderson_House_-_Washington%2C_D.C..jpg/300px-Larz_Anderson_House_-_Washington%2C_D.C..jpg |
| Le Palais | 44,925 | Beverly Hills | California | 2011 | Mohamed Hadid | Châteauesque | Lola Karimova-Tillyaeva | n/a | |
| Glencairn | 44,309 | Bryn Athyn | Pennsylvania | 1938 | Raymond Pitcairn | Romanesque | The New Church | Raymond Pitcairn | https://upload.wikimedia.org/wikipedia/en/thumb/0/01/Glencairn_Museum.jpg/300px-Glencairn_Museum.jpg |
| Villa Vittoriosa | 44,234 | Fayetteville | Georgia | 1994 | Evander Holyfield | Neoclassical | Rick Ross | Portman Fuchtman Vinson Sunderland | |
| Ochre Court | 44,229 | Newport | Rhode Island | 1892 | Ogden Goelet | Châteauesque | Salve Regina University | Richard Morris Hunt | https://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Salve-gates.jpg/300px-Salve-gates.jpg |
| Hyde Park | 44,000 | Hyde Park | New York | 1899 | Frederick Vanderbilt | Beaux-Arts | National Park Service | Charles Follen McKim | https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Vanderbilt_Mansion_-_IMG_7939.JPG/300px-Vanderbilt_Mansion_-_IMG_7939.JPG |
| Boldt Castle | 43,793 | Alexandria Bay | New York | 1904 | George Boldt | Chateauesque | Thousand Islands Bridge Authority | G.W. & W.D. Hewitt | https://upload.wikimedia.org/wikipedia/commons/thumb/1/15/Ch%C3%A2teau_de_Boldt.jpg/300px-Ch%C3%A2teau_de_Boldt.jpg |
| Marland Mansion | 43,561 | Ponca City | Oklahoma | 1928 | Ernest Whitworth Marland | Mediterranean Revival | City of Ponca City | John Duncan Forsyth | https://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Marland_Mansion_Entrance_Front.jpg/300px-Marland_Mansion_Entrance_Front.jpg |
| 901 Trophy Hills Drive | 43,557 | Las Vegas | Nevada | 2013 | Sheldon Adelson | n/a | Sheldon Adelson | n/a | |
| Asherwood | 43,517 | Carmel | Indiana | 1999 | Melvin Simon | Chateauesque | Great American Songbook Foundation | n/a | |
| Primatara | 43,040 | Springfield | Missouri | Under construction | Robert Low | n/a | Robert Low | Richard Drummond Davis | |
| Château des Fleurs | 42,831 | Los Angeles | California | 2014 | James A. Kaplan | Chateauesque | James A. Kaplan | William Hefner | |
| 51 Winding Brook Drive | 42,014 | Saratoga Springs | New York | 2006 | John Breyo | Mediterranean Revival | John Breyo | Robert Flansburg | |
| Payne Mansion | 42,000 | Esopus | New York | 1911 | Oliver Hazard Payne | Beaux-Arts | Marist College | Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Col._Oliver_Hazard_Payne_Estate.jpg/300px-Col._Oliver_Hazard_Payne_Estate.jpg |
| Rose Terrace | 42,000 | Grosse Pointe Farms | Michigan | 1931 | Anna Thompson Dodge | Neoclassical | n/a | Horace Trumbauer | https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Rose_Terrace_facade_c_1971.jpg/300px-Rose_Terrace_facade_c_1971.jpg |
| Le Palais Royal | 41,774 | Hillsboro Beach | Florida | 2014 | Robert Pereira | Beaux-Arts | Robert Pereira | Denio Madera | |
| Carolands | 41,050 | Hillsborough | California | 1914 | Harriet Pullman Carolan | Second Empire | Charles Bartlett Johnson | Ernest Sanson Willis Polk | https://upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Carolands_Chateau-_South_Facade_with_Porte-coch%C3%A8re_gates_Feb.13_.jpg/300px-Carolands_Chateau-_South_Facade_with_Porte-coch%C3%A8re_gates_Feb.13_.jpg |
| Hayes Mansion | 41,000 | San Jose | California | 1905 | Mary Hayes Chynoweth | Mediterranean Revival | City of San Jose | George Page | https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Hayes_Mansion%2C_200_Edenvale_Ave.%2C_San_Jose%2C_CA_9-23-2012_6-49-36_PM.JPG/300px-Hayes_Mansion%2C_200_Edenvale_Ave.%2C_San_Jose%2C_CA_9-23-2012_6-49-36_PM.JPG |
| NYIT de Seversky Mansion | 41,000 | Old Westbury | New York | 1918 | Alfred I. du Pont | Georgian Revival | New York Institute of Technology | Carrère and Hastings | https://upload.wikimedia.org/wikipedia/commons/thumb/a/a7/DeSeversky.jpg/300px-DeSeversky.jpg |
| Il Palmetto | 40,916 | Palm Beach | Florida | 1927 | Joseph E. Widener | Mediterranean Revival | James H. Clark | Maurice Fatio | |
| Walker McCune Mansion | 40,280 | Paradise Valley | Arizona | 1962 | Walker McCune | Contemporary | George A. Hormel | n/a | |
| Mills Mansion | 40,000 | Hyde Park | New York | 1896 | Ogden Mills | Beaux-Arts | New York State Office of Parks, Recreation and Historic Preservation | Stanford White | https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Staatsburgh_state_historic_site_dutchess_2007_02_15.jpg/300px-Staatsburgh_state_historic_site_dutchess_2007_02_15.jpg |
| The Braes | 40,000 | Glen Cove | New York | 1912 | Herbert L. Pratt | Jacobean | Webb Institute | James Brite | https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Webb_bw.jpg/300px-Webb_bw.jpg |
| Coe Hall | 40,000 | Upper Brookville | New York | 1921 | William Robertson Coe | Tudor Revival | Planting Fields Foundation | Guy Lowell | https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Coe_Hall_-_PFA%3B_January_2006.jpg/300px-Coe_Hall_-_PFA%3B_January_2006.jpg |
| 10697 Somma Way | 40,000 | Los Angeles | California | 2017 | Ty Cueva | Spanish Colonial Revival | Ty Cueva | n/a | |
| Rynwood | 40,000 | Old Brookville | New York | 1927 | Samuel Agar Salvage | Tudor Revival | John Mariani Jr | Roger Bullard | |
| Seaview Terrace | 39,648 | Newport | Rhode Island | 1925 | Edson Bradley | Chateauesque | Martin Carey | Howard Greenley | https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/CareyMansion_crop.jpg/300px-CareyMansion_crop.jpg |
