<P> This List of the 100 largest extant houses in the United States includes place holders for houses that have been demolished or currently under construction (i.e. under construction with substantial progress made, not merely proposed) ranked by square footage (which includes livable space of main house only, and does not count such ancillary buildings as guest houses, pool houses, etc .). </P> <Table> <Tr> <Th> Rank </Th> <Th> Square footage </Th> <Th> Name </Th> <Th> Location </Th> <Th> Built for </Th> <Th> Owner </Th> <Th> Year completed </Th> <Th> Architectural style </Th> <Th> Architect </Th> <Th> Image </Th> </Tr> <Tr> <Td> </Td> <Td> 135,280 </Td> <Td> Biltmore Estate </Td> <Td> Asheville, North Carolina </Td> <Td> George Washington Vanderbilt II </Td> <Td> William A.V. Cecil Jr . </Td> <Td> 1895 </Td> <Td> Châteauesque </Td> <Td> Richard Morris Hunt </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 109,000 </Td> <Td> Oheka Castle </Td> <Td> Huntington, New York </Td> <Td> Otto Hermann Kahn </Td> <Td> Gary Melius </Td> <Td> 1919 </Td> <Td> Châteauesque </Td> <Td> Delano and Aldrich </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 100,000 </Td> <Td> Whitemarsh Hall </Td> <Td> Wyndmoor, Pennsylvania </Td> <Td> Edward T. Stotesbury </Td> <Td> (demolished in 1980) </Td> <Td> 1917 </Td> <Td> Georgian </Td> <Td> Horace Trumbauer </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 97,188 </Td> <Td> Arden House </Td> <Td> Harriman, New York </Td> <Td> Edward Henry Harriman </Td> <Td> Research Center on Natural Conservation </Td> <Td> 1909 </Td> <Td> Châteauesque </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 96,582 </Td> <Td> Winterthur </Td> <Td> Winterthur, Delaware </Td> <Td> Henry Francis du Pont </Td> <Td> Winterthur Museum, Garden and Library </Td> <Td> 1932 </Td> <Td> Georgian Revival </Td> <Td> Henry Francis du Pont </Td> <Td> </Td> </Tr> <Tr> <Td> 6 </Td> <Td> 91,000 </Td> <Td> Le Palais Royal </Td> <Td> Hillsboro Beach, Florida </Td> <Td> Unknown </Td> <Td> Unknown </Td> <Td> 2017 </Td> <Td> Palais </Td> <Td> Joseph Leone </Td> </Tr> <Tr> <Td> 7 (tie) </Td> <Td> 90,000 </Td> <Td> Cornelius Vanderbilt II House </Td> <Td> New York, New York </Td> <Td> Cornelius Vanderbilt II </Td> <Td> (demolished in 1926) </Td> <Td> 1882 </Td> <Td> Châteauesque </Td> <Td> George B. Post </Td> <Td> </Td> </Tr> <Tr> <Td> 7 (tie) </Td> <Td> 90,000 </Td> <Td> Shadow Lawn </Td> <Td> West Long Branch, New Jersey </Td> <Td> Hubert Templeton Parson </Td> <Td> Monmouth University </Td> <Td> 1927 </Td> <Td> Beaux - Arts </Td> <Td> Horace Trumbauer </Td> <Td> </Td> </Tr> <Tr> <Td> 9 </Td> <Td> 88,000 </Td> <Td> Meadow Brook Hall </Td> <Td> Rochester Hills, Michigan </Td> <Td> Matilda Dodge Wilson </Td> <Td> Oakland University </Td> <Td> 1929 </Td> <Td> Tudor Revival </Td> <Td> Smith Hinchman & Grylls </Td> <Td> </Td> </Tr> <Tr> <Td> 10 (tie) </Td> <Td> 80,000 </Td> <Td> Florham </Td> <Td> Florham Park, New Jersey </Td> <Td> Hamilton and Florence Vanderbilt Twombly </Td> <Td> Fairleigh Dickinson University </Td> <Td> 1897 </Td> <Td> Georgian Revival </Td> <Td> McKim Mead & White </Td> <Td> </Td> </Tr> <Tr> <Td> 10 (tie) </Td> <Td> 80,000 </Td> <Td> Harbor Hill </Td> <Td> Roslyn, New York </Td> <Td> Clarence Hungerford Mackay </Td> <Td> (demolished in 1947) </Td> <Td> 1899 </Td> <Td> Châteauesque </Td> <Td> McKim Mead & White </Td> <Td> </Td> </Tr> <Tr> <Td> 12 </Td> <Td> 75,000 </Td> <Td> Indian Neck Hall </Td> <Td> Oakdale, New York </Td> <Td> Frederick Gilbert Bourne </Td> <Td> St. John's University </Td> <Td> 1908 </Td> <Td> Federal Style </Td> <Td> Ernest Flagg </Td> <Td> </Td> </Tr> <Tr> <Td> 13 </Td> <Td> 72,215 </Td> <Td> Pensmore </Td> <Td> Highlandville, Missouri </Td> <Td> Steven T. Huff </Td> <Td> Steven T. Huff </Td> <Td> 2016 </Td> <Td> Châteauesque </Td> <Td> </Td> </Tr> <Tr> <Td> 14 </Td> <Td> 72,000 </Td> <Td> Inisfada </Td> <Td> North Hills, New York </Td> <Td> Nicholas Frederic Brady </Td> <Td> (demolished in 2013) </Td> <Td> 1919 </Td> <Td> Tudor Revival </Td> <Td> John Torrey Windrim </Td> </Tr> <Tr> <Td> 15 (tie) </Td> <Td> 70,000 </Td> <Td> Idle Hour </Td> <Td> Oakdale, New York </Td> <Td> William K. Vanderbilt </Td> <Td> Dowling College </Td> <Td> 1901 </Td> <Td> English Country Style </Td> <Td> Richard Howland Hunt </Td> <Td> </Td> </Tr> <Tr> <Td> 15 (tie) </Td> <Td> 70,000 </Td> <Td> Woodlea </Td> <Td> Briarcliff Manor, New York </Td> <Td> Margaret Louisa Vanderbilt Shepard </Td> <Td> Sleepy Hollow Country Club </Td> <Td> 1895 </Td> <Td> Georgian Revival </Td> <Td> Stanford White </Td> <Td> </Td> </Tr> <Tr> <Td> 17 </Td> <Td> 68,500 </Td> <Td> Hearst Castle </Td> <Td> San Simeon, California </Td> <Td> William Randolph Hearst </Td> <Td> California Department of Parks and Recreation </Td> <Td> 1947 </Td> <Td> Spanish Colonial Revival </Td> <Td> Julia Morgan </Td> <Td> </Td> </Tr> <Tr> <Td> 18 </Td> <Td> 66,341 </Td> <Td> Grey Towers Castle </Td> <Td> Glenside, Pennsylvania </Td> <Td> William Welsh Harrison </Td> <Td> Arcadia University </Td> <Td> 1896 </Td> <Td> Gothic Revival </Td> <Td> Horace Trumbauer </Td> <Td> </Td> </Tr> <Tr> <Td> 19 </Td> <Td> 64,389 </Td> <Td> Fair Field </Td> <Td> Sagaponack, New York </Td> <Td> Ira Rennert </Td> <Td> Ira Rennert </Td> <Td> 2003 </Td> <Td> Italian Renaissance </Td> <Td> Mark Ferguson </Td> <Td> </Td> </Tr> <Tr> <Td> 20 </Td> <Td> 62,500 </Td> <Td> Mar - a-Lago </Td> <Td> Palm Beach, Florida </Td> <Td> Marjorie Merriweather Post </Td> <Td> Donald Trump </Td> <Td> 1927 </Td> <Td> Spanish Colonial Revival </Td> <Td> Marion Sims Wyeth Joseph Urban </Td> <Td> </Td> </Tr> <Tr> <Td> 21 </Td> <Td> 62,482 </Td> <Td> The Breakers </Td> <Td> Newport, Rhode Island </Td> <Td> Cornelius Vanderbilt II </Td> <Td> Preservation Society of Newport County </Td> <Td> 1895 </Td> <Td> Italian Renaissance </Td> <Td> Richard Morris Hunt </Td> <Td> </Td> </Tr> <Tr> <Td> 22 </Td> <Td> 62,317 </Td> <Td> Versailles </Td> <Td> Windermere, Florida </Td> <Td> David A. Siegel </Td> <Td> David A. Siegel </Td> <Td> (under construction) </Td> <Td> Châteauesque </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 23 </Td> <Td> 62,272 </Td> <Td> Lynnewood Hall </Td> <Td> Elkins Park, Pennsylvania </Td> <Td> Peter A.B. Widener </Td> <Td> Richard Yoon </Td> <Td> 1900 </Td> <Td> Neoclassical </Td> <Td> Horace Trumbauer </Td> <Td> </Td> </Tr> <Tr> <Td> 24 </Td> <Td> 62,220 </Td> <Td> Gemini </Td> <Td> Manalapan, Florida </Td> <Td> Gerard Barnes Lambert, Sr </Td> <Td> Dirk Edward Ziff </Td> <Td> 1940s </Td> <Td> Mediterranean Revival </Td> <Td> Marion Sims Wyeth Edson E. Dailey </Td> <Td> </Td> </Tr> <Tr> <Td> 25 (tie) </Td> <Td> 60,000 </Td> <Td> Whitehall </Td> <Td> Palm Beach, Florida </Td> <Td> Henry Morrison Flagler </Td> <Td> Henry Morrison Flagler Museum </Td> <Td> 1902 </Td> <Td> Beaux - Arts </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> 25 (tie) </Td> <Td> 60,000 </Td> <Td> Pembroke </Td> <Td> Glen Cove, New York </Td> <Td> Joseph De Lamar </Td> <Td> (demolished in 1968) </Td> <Td> 1916 </Td> <Td> Neoclassical </Td> <Td> C.P.H. Gilbert </Td> </Tr> <Tr> <Td> 25 (tie) </Td> <Td> 60,000 </Td> <Td> El Mirasol </Td> <Td> Palm Beach, Florida </Td> <Td> Edward T. Stotesbury </Td> <Td> (demolished in 1958) </Td> <Td> 1920 </Td> <Td> Spanish Colonial Revival </Td> <Td> Addison Mizner </Td> <Td> </Td> </Tr> <Tr> <Td> 28 </Td> <Td> 58,000 </Td> <Td> Duke Farms </Td> <Td> Hillsborough Township, New Jersey </Td> <Td> James Buchanan Duke </Td> <Td> (demolished in 2016) </Td> <Td> 1903 </Td> <Td> Tudor Revival </Td> <Td> Henry H. Kendall </Td> </Tr> <Tr> <Td> 29 </Td> <Td> 57,000 </Td> <Td> Eschman Meadows </Td> <Td> Nashport, Ohio </Td> <Td> Tami Longaberger </Td> <Td> </Td> <Td> 2001 </Td> <Td> Georgian </Td> <Td> George Acock Phil White </Td> </Tr> <Tr> <Td> 30 </Td> <Td> 56,881 </Td> <Td> Castle Hill </Td> <Td> Ipswich, Massachusetts </Td> <Td> Nathan East </Td> <Td> The Trustees of Reservations </Td> <Td> 1928 </Td> <Td> English Baroque </Td> <Td> David Adler </Td> <Td> </Td> </Tr> <Tr> <Td> 31 </Td> <Td> 56,368 </Td> <Td> Andrew Carnegie Mansion </Td> <Td> New York, New York </Td> <Td> Andrew Carnegie </Td> <Td> Smithsonian Institution </Td> <Td> 1901 </Td> <Td> Georgian Revival </Td> <Td> Babb, Cook & Willard </Td> <Td> </Td> </Tr> <Tr> <Td> 30 </Td> <Td> 56,000 </Td> <Td> Blairsden </Td> <Td> Peapack - Gladstone, New Jersey </Td> <Td> Clinton Ledyard Blair </Td> <Td> T. Eric Galloway </Td> <Td> 1903 </Td> <Td> Châteauesque </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> 31 </Td> <Td> 55,360 </Td> <Td> Ralston Hall </Td> <Td> Belmont, California </Td> <Td> William Chapman Ralston </Td> <Td> Notre Dame de Namur University </Td> <Td> 1864 </Td> <Td> Italianate </Td> <Td> Henry W. Cleaveland </Td> <Td> </Td> </Tr> <Tr> <Td> 32 (tie) </Td> <Td> 55,000 </Td> <Td> White House </Td> <Td> Washington, D.C. </Td> <Td> United States of America </Td> <Td> National Park Service </Td> <Td> 1800 </Td> <Td> Neoclassical </Td> <Td> James Hoban </Td> <Td> </Td> </Tr> <Tr> <Td> 32 (tie) </Td> <Td> 55,000 </Td> <Td> Belle Grove </Td> <Td> White Castle, Louisiana </Td> <Td> John Andrews </Td> <Td> (demolished in 1952) </Td> <Td> 1857 </Td> <Td> Greek Revival Italianate </Td> <Td> Henry Howard </Td> <Td> </Td> </Tr> <Tr> <Td> 32 (tie) </Td> <Td> 55,000 </Td> <Td> Elm Court </Td> <Td> Lenox, Massachusetts </Td> <Td> Emily Thorn Vanderbilt </Td> <Td> Travaasa Experiential Resorts </Td> <Td> 1885 </Td> <Td> American Shingle Style </Td> <Td> Peabody and Stearns </Td> <Td> </Td> </Tr> <Tr> <Td> 35 </Td> <Td> 54,838 </Td> <Td> Dumbarton Oaks </Td> <Td> Washington, D.C. </Td> <Td> William Hammond Dorsey </Td> <Td> Harvard University </Td> <Td> 1801 </Td> <Td> Colonial Revival </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 36 </Td> <Td> 54,400 </Td> <Td> Chateau Montagel </Td> <Td> Shoal Creek, Alabama </Td> <Td> Larry House </Td> <Td> Real Estate Investment Trust </Td> <Td> </Td> <Td> Châteauesque </Td> <Td> Bill Shephard </Td> <Td> </Td> </Tr> <Tr> <Td> 37 </Td> <Td> 54,246 </Td> <Td> Searles Castle </Td> <Td> Great Barrington, Massachusetts </Td> <Td> Mary Hopkins Searles </Td> <Td> John Dewey Academy </Td> <Td> 1883 </Td> <Td> Châteauesque </Td> <Td> McKim Mead & White </Td> <Td> </Td> </Tr> <Tr> <Td> 38 </Td> <Td> 53,000 </Td> <Td> Nottoway </Td> <Td> White Castle, Louisiana </Td> <Td> John Hampden Randolph </Td> <Td> Paul Ramsay </Td> <Td> 1858 </Td> <Td> Greek Revival Italianate </Td> <Td> Henry Howard </Td> <Td> </Td> </Tr> <Tr> <Td> 39 </Td> <Td> 52,897 </Td> <Td> Hala Ranch </Td> <Td> Aspen, Colorado </Td> <Td> Bandar bin Sultan </Td> <Td> John Paulson </Td> <Td> 1991 </Td> <Td> Rustic </Td> <Td> Hagman Yaw </Td> </Tr> <Tr> <Td> 40 </Td> <Td> 52,503 </Td> <Td> The Manor </Td> <Td> Los Angeles, California </Td> <Td> Aaron Spelling </Td> <Td> Petra Stunt </Td> <Td> </Td> <Td> Châteauesque </Td> <Td> James Langenheim & Associates </Td> <Td> </Td> </Tr> <Tr> <Td> 41 </Td> <Td> 52,300 </Td> <Td> Felix M. Warburg House </Td> <Td> New York, New York </Td> <Td> Felix M. Warburg </Td> <Td> Jewish Museum of New York </Td> <Td> 1906 </Td> <Td> Châteauesque </Td> <Td> Charles Pierrepont Henry Gilbert </Td> <Td> </Td> </Tr> <Tr> <Td> 42 </Td> <Td> 51,134 </Td> <Td> Stan Hywet Hall </Td> <Td> Akron, Ohio </Td> <Td> Frank Seiberling </Td> <Td> Stan Hywet Hall Foundation </Td> <Td> 1915 </Td> <Td> Tudor Revival </Td> <Td> Charles Sumner Schneider </Td> <Td> </Td> </Tr> <Tr> <Td> 43 </Td> <Td> 51,000 </Td> <Td> Hacienda De La Paz </Td> <Td> Rolling Hills, California </Td> <Td> John Z . Blazevich </Td> <Td> John Z . Blazevich </Td> <Td> 2008 </Td> <Td> Spanish Colonial Revival </Td> <Td> Rafael Manzano Martos </Td> </Tr> <Tr> <Td> 44 </Td> <Td> 50,853 </Td> <Td> Chase Mansion </Td> <Td> West Hartford, Connecticut </Td> <Td> Arnold Chase </Td> <Td> Arnold Chase </Td> <Td> 2009 </Td> <Td> Georgian </Td> <Td> Allan Greenberg Architect, LLC </Td> </Tr> <Tr> <Td> 45 </Td> <Td> 50,729 </Td> <Td> Perry Belmont House </Td> <Td> Washington, D.C. </Td> <Td> Perry Belmont </Td> <Td> Order of the Eastern Star </Td> <Td> 1909 </Td> <Td> Beaux - Arts </Td> <Td> Ernest Sanson Horace Trumbauer </Td> <Td> </Td> </Tr> <Tr> <Td> 46 </Td> <Td> 50,316 </Td> <Td> Otto H. Kahn House </Td> <Td> New York, New York </Td> <Td> Otto Hermann Kahn </Td> <Td> Convent of the Sacred Heart </Td> <Td> 1914 </Td> <Td> Renaissance Revival </Td> <Td> J. Armstrong Stenhouse Charles Pierrepont Henry Gilbert </Td> <Td> </Td> </Tr> <Tr> <Td> 47 (tie) </Td> <Td> 50,000 </Td> <Td> 1299 Via Tivoli </Td> <Td> Henderson, Nevada </Td> <Td> Pierre Omidyar </Td> <Td> Pierre Omidyar </Td> <Td> </Td> <Td> Modern architecture </Td> <Td> </Td> </Tr> <Tr> <Td> 47 (tie) </Td> <Td> 50,000 </Td> <Td> Reid Hall </Td> <Td> Purchase, New York </Td> <Td> Whitelaw Reid </Td> <Td> Manhattanville College </Td> <Td> 1892 </Td> <Td> Renaissance Revival </Td> <Td> Stanford White </Td> <Td> </Td> </Tr> <Tr> <Td> 47 (tie) </Td> <Td> 50,000 </Td> <Td> Wingwood House </Td> <Td> Bar Harbor, Maine </Td> <Td> Alexander Cassatt </Td> <Td> (demolished in 1953) </Td> <Td> 1903 </Td> <Td> Neoclassical </Td> <Td> Louis Magaziner </Td> </Tr> <Tr> <Td> 47 (tie) </Td> <Td> 50,000 </Td> <Td> Riverside </Td> <Td> New York, New York </Td> <Td> Charles M. Schwab </Td> <Td> (demolished in 1948) </Td> <Td> 1906 </Td> <Td> Châteauesque </Td> <Td> Maurice Hébert </Td> <Td> </Td> </Tr> <Tr> <Td> 47 (tie) </Td> <Td> 50,000 </Td> <Td> Hempstead House </Td> <Td> Sands Point, New York </Td> <Td> Howard Gould </Td> <Td> Nassau County, New York </Td> <Td> 1912 </Td> <Td> Tudor Revival </Td> <Td> Richard Howland Hunt </Td> <Td> </Td> </Tr> <Tr> <Td> 47 (tie) </Td> <Td> 50,000 </Td> <Td> Seven Springs </Td> <Td> Bedford, New York </Td> <Td> Eugene Meyer </Td> <Td> Donald Trump </Td> <Td> 1919 </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 52 </Td> <Td> 49,951 </Td> <Td> Chateau Bray </Td> <Td> Madisonville, Texas </Td> <Td> James and Sonya Bray </Td> <Td> James and Sonya Bray </Td> <Td> (under construction) </Td> <Td> French Baroque </Td> <Td> James and Sonya Bray </Td> <Td> </Td> </Tr> <Tr> <Td> 53 </Td> <Td> 49,568 </Td> <Td> 8271 E Left Hand Fork Hobble Creek </Td> <Td> Springville, Utah </Td> <Td> Tom Mower </Td> <Td> Tom Mower </Td> <Td> </Td> <Td> Italian Renaissance </Td> <Td> </Td> </Tr> <Tr> <Td> 54 </Td> <Td> 49,300 </Td> <Td> The Pritzker Estate </Td> <Td> Los Angeles, California </Td> <Td> Anthony Pritzker </Td> <Td> Anthony Pritzker </Td> <Td> </Td> <Td> Contemporary </Td> <Td> Grant Camden Kirkpatrick </Td> </Tr> <Tr> <Td> 55 </Td> <Td> 49,000 </Td> <Td> Ziff Mansion </Td> <Td> Pawling, New York </Td> <Td> William Bernard Ziff, Jr . </Td> <Td> Dirk Edward Ziff </Td> <Td> 2000 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 56 </Td> <Td> 48,515 </Td> <Td> 50 Poplar Hill Drive </Td> <Td> Farmington, Connecticut </Td> <Td> Benjamin Sisti </Td> <Td> Curtis Jackson </Td> <Td> 1985 </Td> <Td> Contemporary </Td> <Td> </Td> </Tr> <Tr> <Td> 57 </Td> <Td> 48,160 </Td> <Td> Xanadu 2.0 </Td> <Td> Medina, Washington </Td> <Td> Bill Gates </Td> <Td> Bill Gates </Td> <Td> 1995 </Td> <Td> Pacific Lodge </Td> <Td> James Cutler </Td> <Td> </Td> </Tr> <Tr> <Td> 58 </Td> <Td> 47,000 </Td> <Td> Nemours </Td> <Td> Wilmington, Delaware </Td> <Td> Alfred I. du Pont </Td> <Td> Nemours Foundation </Td> <Td> 1909 </Td> <Td> Neoclassical </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> 59 </Td> <Td> 46,054 </Td> <Td> Greystone Mansion </Td> <Td> Beverly Hills, California </Td> <Td> Edward L. Doheny </Td> <Td> City of Beverly Hills </Td> <Td> 1928 </Td> <Td> Tudor Revival </Td> <Td> Gordon Kaufmann </Td> <Td> </Td> </Tr> <Tr> <Td> 60 </Td> <Td> 46,000 </Td> <Td> Elstowe Manor </Td> <Td> Elkins Park, Pennsylvania </Td> <Td> William L. Elkins </Td> <Td> Dominican Sisters of St. Catherine de' Ricci </Td> <Td> 1898 </Td> <Td> Italian Renaissance </Td> <Td> Horace Trumbauer </Td> <Td> </Td> </Tr> <Tr> <Td> 61 </Td> <Td> 45,891 </Td> <Td> 457 Bel Air Road </Td> <Td> Los Angeles, California </Td> <Td> Beny Alagem </Td> <Td> Beny Alagem </Td> <Td> 2006 </Td> <Td> French Normandy </Td> <Td> Robert A.M. Stern </Td> <Td> </Td> </Tr> <Tr> <Td> 62 </Td> <Td> 45,854 </Td> <Td> Villa Collina </Td> <Td> Moorestown, New Jersey </Td> <Td> Vernon Hill </Td> <Td> Vernon Hill </Td> <Td> 2002 </Td> <Td> Italian Renaissance </Td> <Td> </Td> </Tr> <Tr> <Td> 63 </Td> <Td> 45,842 </Td> <Td> Townsend House </Td> <Td> Washington, D.C. </Td> <Td> Richard T. Townsend </Td> <Td> Cosmos Club </Td> <Td> 1901 </Td> <Td> Beaux - Arts </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> 64 </Td> <Td> 45,120 </Td> <Td> Illinois Executive Mansion </Td> <Td> Springfield, Illinois </Td> <Td> State of Illinois </Td> <Td> State of Illinois </Td> <Td> 1855 </Td> <Td> Georgian Revival </Td> <Td> John M. Van Osdel </Td> <Td> </Td> </Tr> <Tr> <Td> 65 (tie) </Td> <Td> 45,000 </Td> <Td> Yaddo </Td> <Td> Saratoga Springs, New York </Td> <Td> Spencer Trask </Td> <Td> Corporation of Yaddo </Td> <Td> 1893 </Td> <Td> Tudor Revival </Td> <Td> William Halsey Wood </Td> <Td> </Td> </Tr> <Tr> <Td> 65 (tie) </Td> <Td> 45,000 </Td> <Td> Darlington </Td> <Td> Mahwah, New Jersey </Td> <Td> George Crocker </Td> <Td> Ilija Pavlovic </Td> <Td> 1907 </Td> <Td> Jacobean </Td> <Td> James Brite </Td> <Td> </Td> </Tr> <Tr> <Td> 65 (tie) </Td> <Td> 45,000 </Td> <Td> Henry Clay Frick House </Td> <Td> New York, New York </Td> <Td> Henry Clay Frick </Td> <Td> Frick Collection </Td> <Td> 1914 </Td> <Td> Beaux - Arts </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> 68 </Td> <Td> 44,936 </Td> <Td> Anderson House </Td> <Td> Washington, D.C. </Td> <Td> Larz Anderson </Td> <Td> Society of the Cincinnati </Td> <Td> 1905 </Td> <Td> Beaux - Arts </Td> <Td> Arthur Little Herbert Browne </Td> <Td> </Td> </Tr> <Tr> <Td> 69 </Td> <Td> 44,925 </Td> <Td> Le Palais </Td> <Td> Beverly Hills, California </Td> <Td> Mohamed Hadid </Td> <Td> Lola Karimova - Tillyaeva </Td> <Td> 2011 </Td> <Td> Châteauesque </Td> <Td> </Td> </Tr> <Tr> <Td> 70 </Td> <Td> 44,309 </Td> <Td> Glencairn </Td> <Td> Bryn Athyn, Pennsylvania </Td> <Td> Raymond Pitcairn </Td> <Td> The New Church </Td> <Td> 1929 </Td> <Td> Romanesque </Td> <Td> Raymond Pitcairn </Td> <Td> </Td> </Tr> <Tr> <Td> 71 </Td> <Td> 44,234 </Td> <Td> Villa Vittoriosa </Td> <Td> Fayetteville, Georgia </Td> <Td> Evander Holyfield </Td> <Td> Rick Ross </Td> <Td> </Td> <Td> Neoclassical </Td> <Td> Portman Fuchtman Vinson Sunderland </Td> </Tr> <Tr> <Td> 72 </Td> <Td> 44,229 </Td> <Td> Ochre Court </Td> <Td> Newport, Rhode Island </Td> <Td> Ogden Goelet </Td> <Td> Salve Regina University </Td> <Td> 1892 </Td> <Td> Châteauesque </Td> <Td> Richard Morris Hunt </Td> <Td> </Td> </Tr> <Tr> <Td> 73 </Td> <Td> 44,000 </Td> <Td> Hyde Park </Td> <Td> Hyde Park, New York </Td> <Td> Frederick Vanderbilt </Td> <Td> National Park Service </Td> <Td> 1899 </Td> <Td> Beaux - Arts </Td> <Td> Charles Follen McKim </Td> <Td> </Td> </Tr> <Tr> <Td> 74 </Td> <Td> 43,793 </Td> <Td> Boldt Castle </Td> <Td> Alexandria Bay, New York </Td> <Td> George Boldt </Td> <Td> Thousand Islands Bridge Authority </Td> <Td> 1904 </Td> <Td> Chateauesque </Td> <Td> G.W. & W.D. Hewitt </Td> <Td> </Td> </Tr> <Tr> <Td> 75 </Td> <Td> 43,561 </Td> <Td> Marland Mansion </Td> <Td> Ponca City, Oklahoma </Td> <Td> Ernest Whitworth Marland </Td> <Td> City of Ponca City </Td> <Td> 1928 </Td> <Td> Mediterranean Revival </Td> <Td> John Duncan Forsyth </Td> <Td> </Td> </Tr> <Tr> <Td> 76 </Td> <Td> 43,557 </Td> <Td> 901 Trophy Hills Dr </Td> <Td> Las Vegas, Nevada </Td> <Td> Sheldon Adelson </Td> <Td> Sheldon Adelson </Td> <Td> 2013 </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 77 </Td> <Td> 43,517 </Td> <Td> Asherwood </Td> <Td> Carmel, Indiana </Td> <Td> Melvin Simon </Td> <Td> Bren Simon </Td> <Td> 1999 </Td> <Td> Chateauesque </Td> <Td> </Td> </Tr> <Tr> <Td> 78 </Td> <Td> 43,040 </Td> <Td> Primatara </Td> <Td> Springfield, Missouri </Td> <Td> Robert Low </Td> <Td> Robert Low </Td> <Td> (under construction) </Td> <Td> </Td> <Td> Richard Drummond Davis </Td> <Td> </Td> </Tr> <Tr> <Td> 79 </Td> <Td> 42,831 </Td> <Td> Château des Fleurs </Td> <Td> Los Angeles, California </Td> <Td> James A. Kaplan </Td> <Td> James A. Kaplan </Td> <Td> 2014 </Td> <Td> Chateauesque </Td> <Td> William Hefner </Td> </Tr> <Tr> <Td> 80 </Td> <Td> 42,014 </Td> <Td> 51 Winding Brook Drive </Td> <Td> Saratoga Springs, New York </Td> <Td> John Breyo </Td> <Td> John Breyo </Td> <Td> 2006 </Td> <Td> Mediterranean Revival </Td> <Td> Robert Flansburg </Td> </Tr> <Tr> <Td> 81 (tie) </Td> <Td> 42,000 </Td> <Td> Payne Mansion </Td> <Td> Esopus, New York </Td> <Td> Oliver Hazard Payne </Td> <Td> Marist College </Td> <Td> 1911 </Td> <Td> Beaux - Arts </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> 81 (tie) </Td> <Td> 42,000 </Td> <Td> Rose Terrace </Td> <Td> Grosse Pointe Farms, Michigan </Td> <Td> Anna Thompson Dodge </Td> <Td> (demolished in 1976) </Td> <Td> 1931 </Td> <Td> Neoclassical </Td> <Td> Horace Trumbauer </Td> <Td> </Td> </Tr> <Tr> <Td> 83 </Td> <Td> 41,774 </Td> <Td> Le Palais Royal </Td> <Td> Hillsboro Beach, Florida </Td> <Td> Robert Pereira </Td> <Td> Robert Pereira </Td> <Td> 2014 </Td> <Td> Beaux - Arts </Td> <Td> Denio Madera </Td> </Tr> <Tr> <Td> 84 </Td> <Td> 41,050 </Td> <Td> Carolands </Td> <Td> Hillsborough, California </Td> <Td> Harriet Pullman Carolan </Td> <Td> Charles Bartlett Johnson </Td> <Td> 1914 </Td> <Td> Second Empire </Td> <Td> Ernest Sanson Willis Polk </Td> <Td> </Td> </Tr> <Tr> <Td> 85 (tie) </Td> <Td> 41,000 </Td> <Td> Hayes Mansion </Td> <Td> San Jose, California </Td> <Td> Mary Hayes Chynoweth </Td> <Td> City of San Jose </Td> <Td> 1905 </Td> <Td> Mediterranean Revival </Td> <Td> George Page </Td> <Td> </Td> </Tr> <Tr> <Td> 85 (tie) </Td> <Td> 41,000 </Td> <Td> NYIT de Seversky Mansion </Td> <Td> Old Westbury, New York </Td> <Td> Alfred I. du Pont </Td> <Td> New York Institute of Technology </Td> <Td> 1918 </Td> <Td> Georgian Revival </Td> <Td> Carrère and Hastings </Td> <Td> </Td> </Tr> <Tr> <Td> 87 </Td> <Td> 40,916 </Td> <Td> Il Palmetto </Td> <Td> Palm Beach, Florida </Td> <Td> Joseph E. Widener </Td> <Td> James H. Clark </Td> <Td> 1927 </Td> <Td> Mediterranean Revival </Td> <Td> Maurice Fatio </Td> </Tr> <Tr> <Td> 88 </Td> <Td> 40,280 </Td> <Td> Walker McCune Mansion </Td> <Td> Paradise Valley, Arizona </Td> <Td> Walker McCune </Td> <Td> George A. Hormel family </Td> <Td> 1962 </Td> <Td> Contemporary </Td> <Td> </Td> </Tr> <Tr> <Td> 89 (tie) </Td> <Td> 40,000 </Td> <Td> Mills Mansion </Td> <Td> Hyde Park, New York </Td> <Td> Ogden Mills </Td> <Td> New York State Office of Parks, Recreation and Historic Preservation </Td> <Td> 1896 </Td> <Td> Beaux - Arts </Td> <Td> Stanford White </Td> <Td> </Td> </Tr> <Tr> <Td> 89 (tie) </Td> <Td> 40,000 </Td> <Td> The Braes </Td> <Td> Glen Cove, New York </Td> <Td> Herbert L. Pratt </Td> <Td> Webb Institute </Td> <Td> 1912 </Td> <Td> Jacobean </Td> <Td> James Brite </Td> <Td> </Td> </Tr> <Tr> <Td> 89 (tie) </Td> <Td> 40,000 </Td> <Td> Coe Hall </Td> <Td> Oyster Bay, New York </Td> <Td> William Robertson Coe </Td> <Td> Planting Fields Foundation </Td> <Td> 1921 </Td> <Td> Tudor Revival </Td> <Td> Guy Lowell </Td> <Td> </Td> </Tr> <Tr> <Td> 89 (tie) </Td> <Td> 40,000 </Td> <Td> Rynwood </Td> <Td> Old Brookville, New York </Td> <Td> Samuel Agar Salvage </Td> <Td> John Mariani Jr </Td> <Td> 1927 </Td> <Td> Tudor Revival </Td> <Td> Roger Bullard </Td> <Td> </Td> </Tr> <Tr> <Td> 89 (tie) </Td> <Td> 40,000 </Td> <Td> 10697 Somma Way </Td> <Td> Los Angeles, California </Td> <Td> Ty Cueva </Td> <Td> Ty Cueva </Td> <Td> 2017 </Td> <Td> Spanish Colonial Revival </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> 94 </Td> <Td> 39,648 </Td> <Td> Seaview Terrace </Td> <Td> Newport, Rhode Island </Td> <Td> Edson Bradley </Td> <Td> Martin Carey </Td> <Td> 1925 </Td> <Td> Chateauesque </Td> <Td> Howard Greenley </Td> <Td> </Td> </Tr> <Tr> <Td> 95 </Td> <Td> 39,576 </Td> <Td> La Reverie </Td> <Td> Palm Beach, Florida </Td> <Td> Sydell Miller </Td> <Td> Sydell Miller </Td> <Td> 2001 </Td> <Td> Neoclassical </Td> <Td> Jeffrey W. Smith </Td> </Tr> <Tr> <Td> 96 </Td> <Td> 39,257 </Td> <Td> Serenity Ridge </Td> <Td> Parker, Colorado </Td> <Td> Cal Turner, Jr . </Td> <Td> Cal Turner, Jr . </Td> <Td> 2001 </Td> <Td> Italianate </Td> <Td> </Td> </Tr> <Tr> <Td> 97 </Td> <Td> 38,500 </Td> <Td> North Wales </Td> <Td> Warrenton, Virginia </Td> <Td> William Allison </Td> <Td> David Ford </Td> <Td> 1776 </Td> <Td> Georgian </Td> <Td> </Td> </Tr> <Tr> <Td> 98 </Td> <Td> 38,196 </Td> <Td> 144 Hopewell Road </Td> <Td> Alton, New Hampshire </Td> <Td> Bob Bahre </Td> <Td> Bob Bahre </Td> <Td> 2003 </Td> <Td> Georgian </Td> <Td> </Td> </Tr> <Tr> <Td> 99 (tie) </Td> <Td> 38,000 </Td> <Td> Government House </Td> <Td> Annapolis, Maryland </Td> <Td> State of Maryland </Td> <Td> State of Maryland </Td> <Td> 1870 </Td> <Td> Georgian </Td> <Td> Richard Snowden Andrews </Td> <Td> </Td> </Tr> <Tr> <Td> 99 (tie) </Td> <Td> 38,000 </Td> <Td> Ardrossan </Td> <Td> Villanova, Pennsylvania </Td> <Td> Robert Leaming Montgomery </Td> <Td> Robert Montgomery Scott </Td> <Td> 1912 </Td> <Td> Georgian </Td> <Td> Horace Trumbauer </Td> </Tr> <Tr> <Td> 99 (tie) </Td> <Td> 38,000 </Td> <Td> Charles Gates Mansion </Td> <Td> Minneapolis, Minnesota </Td> <Td> Charles Gates </Td> <Td> (demolished 1933) </Td> <Td> 1913 </Td> <Td> Renaissance Revival </Td> <Td> </Td> </Tr> <Tr> <Td> 99 (tie) </Td> <Td> 38,000 </Td> <Td> Billionaire </Td> <Td> Los Angeles, California </Td> <Td> Bruce Makowsky </Td> <Td> Bruce Makowsky </Td> <Td> 2016 </Td> <Td> Contemporary </Td> <Td> Bruce Makowsky </Td> </Tr> </Table> <Tr> <Th> Rank </Th> <Th> Square footage </Th> <Th> Name </Th> <Th> Location </Th> <Th> Built for </Th> <Th> Owner </Th> <Th> Year completed </Th> <Th> Architectural style </Th> <Th> Architect </Th> <Th> Image </Th> </Tr>

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