Lloyd-Howe House (Moore County, North Carolina)
Lo Beele House (Monroe County, Arkansas)
Lobb House (Alger County, Michigan)
Loch Dhu (Berkeley County, South Carolina)
Lochinvar (Pontotoc County, Mississippi)
Lock Tender's House and Inn (Cuyahoga County, Ohio)
Lock-Keeper's House (Goochland County, Virginia)
Locke House (Alameda County, California)
Locke's Meat Market (San Joaquin County, California)
Locke, Asa, House (Middlesex County, Massachusetts)
Locke, Capt. Josiah, House (Middlesex County, Massachusetts)
Locke, Elijah, House (Rockingham County, New Hampshire)
Locke--Nall House (Sevier County, Arkansas)
Locke-Baldwin-Kinsley House (Middlesex County, Massachusetts)
Locke-Mount House (Oldham County, Kentucky)
Lockhardt, Charles H., House (Middlesex County, Massachusetts)
Lockman, Jacob P. House (Canyon County, Idaho)
Lockridge House (Ravalli County, Montana)
Lockwood-Boynton House (Windsor County, Vermont)
Lockwood-Mathews Mansion (Fairfield County, Connecticut)
Locust Avenue (Jefferson County, Kentucky)
Locust Bottom (Prince William County, Virginia)
Locust Creek House Complex (Windsor County, Vermont)
Locust Grove (Loudoun County, Virginia)
Locust Grove (Dutchess County, New York)
Locust Grove (Jefferson County, Kentucky)
Locust Grove (Franklin County, North Carolina)
Locust Grove (Charles County, Maryland)
Locust Grove (Sumner County, Tennessee)
Locust Grove (Charlottesville, Virginia)
Locust Grove (Culpeper County, Virginia)
Locust Grove (Greene County, Virginia)
Locust Grove (Lynchburg, Virginia)
Locust Grove (Page County, Virginia)
Locust Hill (Pittsylvania County, Virginia)
Locust Hill (Chariton County, Missouri)
Locust Hill (Rockbridge County, Virginia)
Locust Lawn Estate (Ulster County, New York)
Locust Level (Bedford County, Virginia)
Locust, The (Oldham County, Kentucky)
Locusts, The (Ulster County, New York)
Locustville (Lancaster County, Virginia)
Lodge, Henry Cabot, House (Essex County, Massachusetts)
Loew, William Goadby, House (New York County, New York)
Log Dogtrot House (Houston County, Georgia)
Log House on Shun Pike (Jessamine County, Kentucky)
Logan Furnace Mansion (Centre County, Pennsylvania)
Logan House (Shelby County, Kentucky)
Logee House (Providence County, Rhode Island)
Logtown Plantation (Ouachita Parish, Louisiana)
Logue House (Harris County, Texas)
Lohman Funeral Home and Livery Stable (Milwaukee County, Wisconsin)
Funeral Home Repurposed as Executive Offices
Lola Maverick Lloyd House (Cook County, Illinois)
Lollin Block (Salt Lake County, Utah)
Lomb, Adolph, House (Monroe County, New York)
Lombard, Alvin O., House (Kennebec County, Maine)
Lombardo Ranch (El Dorado County, California)
Lon Rogers House (Boyd County, Kentucky)
Londershausen House (Yamhill County, Oregon)
Londershausen House (Yamhill County, Oregon)
London Cottage (Chatham County, North Carolina)
Lone Beech (McDowell County, North Carolina)
Lone Oaks (Roanoke County, Virginia)
Lone Pine (Avoyelles Parish, Louisiana)
Lone Pine (Edgecombe County, North Carolina)
Lonetree (Chouteau County, Montana)
Long Branch (Clarke County, Virginia)
Long Hill (Wicomico County, Maryland)
Long House (Miami-Dade County, Florida)
Long House (Flathead County, Montana)
Long Meadow (Frederick County, Virginia)
Long Meadow (Hawkins County, Tennessee)
Long Meadow (Rockingham County, Virginia)
Long Meadows (Washington County, Maryland)
Long, McCorkle and Murray Houses (Catawba County, North Carolina)
Long--Mueller House (Montgomery County, Ohio)
Long--Romspert House (Montgomery County, Ohio)
Long-Briggs House (Logan County, Kentucky)
Long-Waterman House (San Diego County, California)
Longbotham, Nathaniel, House (Suffolk County, New York)
Longfellow National Historic Site (Middlesex County, Massachusetts)
Longfellow, Stephen, House (Cumberland County, Maine)
Longfellow-Hastings House (Los Angeles County, California)
Longfield (Bristol County, Rhode Island)
Longino House (Lawrence County, Mississippi)
Longland (Bucks County, Pennsylvania)
Longleat (Davidson County, Tennessee)
Longue Vue House and Gardens (Orleans Parish, Louisiana)
Longue Vue Island (Jefferson County, New York)
Longview (Scott County, Kentucky)
Longview (St. James Parish, Louisiana)
Longview (Cape Girardeau County, Missouri)
Longview (Davidson County, Tennessee)
Longview (Rapides Parish, Louisiana)
Longview Farm House (Logan County, Kentucky)
Longwood (Louisa County, Virginia)
Longwood (Adams County, Mississippi)
Longwood (Caswell County, North Carolina)
Longwood (East Baton Rouge Parish, Louisiana)
Longwood (Albemarle County, Virginia)
Longwood House (Prince Edward County, Virginia)
Longwood House (Jackson County, Florida)
Lonnie A. Pope House (Coffee County, Georgia)
Lonnie and Francis Ayres Ranch (Custer County, South Dakota)
Lookaway Hall (Aiken County, South Carolina)
Loomis House (King County, Washington)
Loomis, Capt. James, House (Hartford County, Connecticut)
Loomis, George G., House (Hartford County, Connecticut)
Loomis, Gordon, House (Hartford County, Connecticut)
Loomis, Ira, Jr., House (Hartford County, Connecticut)
Loomis--Pomeroy House (Tolland County, Connecticut)
Looney House (St. Clair County, Alabama)
Looney-- French House (Randolph County, Arkansas)
Lopez Adobe (Los Angeles County, California)
Lorado Taft Midway Studios (Cook County, Illinois)
Lord House (Pike County, Pennsylvania)
Lord Mansion (York County, Maine)
Lord Stirling Manor Site (Somerset County, New Jersey)
Lord, Capt. Enoch, House (New London County, Connecticut)
Lord, Capt. Nathaniel, Mansion (York County, Maine)
Lord, Dr. John, House (Chautauqua County, New York)
Lord, James C., House (Androscoggin County, Maine)
Lord--Dane House (York County, Maine)
Lord--Heuston House (Pierce County, Washington)
Lord-Baylies-Bennett House (Bristol County, Massachusetts)
Lorenz and Lugerde Ginthner House (Wabasha County, Minnesota)
Lorenzo and Ruth Wells Palmer House (Lenawee County, Michigan)
Lorenzo Mansion (Madison County, New York)
Loretta (Fauquier County, Virginia)
Loretta Herrington House (Carter County, Missouri)
Loretto (Wythe County, Virginia)
Loretz House (Lincoln County, North Carolina)
Lorin Cray House (Blue Earth County, Minnesota)
Lorine Niedecker Cottage (Jefferson County, Wisconsin)
Loring House (Alameda County, California)
Loring, George, House (Middlesex County, Massachusetts)
Loring, Harrison, House (Suffolk County, Massachusetts)
Loring-Greenough House (Suffolk County, Massachusetts)
Los Alamos Ranch House (Santa Barbara County, California)
Los Cerritos Ranch House (Los Angeles County, California)
Los Luceros Hacienda (Rio Arriba County, New Mexico)
Los Nogales (Guadalupe County, Texas)
Losee, Isaac, House (Suffolk County, New York)
Lost Lake Guard Station (Okanogan County, Washington)
Lot Hathaway House (Geauga County, Ohio)
Lothrop Mansion (Washington, District of Columbia)
Lothrop, Caleb, House (Norfolk County, Massachusetts)
Lothrop, Joseph, House (Worcester County, Massachusetts)
Lott Cary Birth Site (Charles City County, Virginia)
Lott, Hendrick I., House (Kings County, New York)
Lotz House (Williamson County, Tennessee)
Lou Ellen Parmelee House (Monterey County, California)
Lou Henry Hoover House (Santa Clara County, California)
Loudermilk Boarding House (Habersham County, Georgia)
Loudoun House (Fayette County, Kentucky)
Louie James House (Greenville County, South Carolina)
Historic home in Greer, SC
Louis A. Crandall House (Linn County, Oregon)
Louis A. Penfield House (Lake County, Ohio)
Louis and Bessie Tarpley House (Multnomah County, Oregon)
Louis and Elizabeth Woerner House (Multnomah County, Oregon)
Louis and Ellen Olson House (King County, Washington)
Louis and Mathilde Reuter House (Travis County, Texas)
Louis Auguste Benoist House (St. Louis County, Missouri)
Louis B. Simmons House (Stephens County, Oklahoma)
Louis Beatty House (Erie County, Ohio)
Louis Beckwith House (Davison County, South Dakota)
Louis Bergdoll House (Philadelphia County, Pennsylvania)
Louis Bolduc House (Ste. Genevieve County, Missouri)
Louis Carufel and E. LaRose, House (Rice County, Minnesota)
Louis Curtiss Studio Building (Jackson County, Missouri)
Louis Delcommune House (Ste. Genevieve County, Missouri)
Timber frame and horizontal log house
Louis Ducros House (Pinellas County, Florida)
Historic home that was removed from the NRHP after being moved to a new location
Louis E. Bryant House (Scott County, Tennessee)
Louis F. Swift House (Lake County, Illinois)
Louis F. Worthing House (Wharton County, Texas)
Louis H. Peters House (Franklin County, Missouri)
Louis Hebert House (Scott County, Iowa)
Louis Hirsig House (Dane County, Wisconsin)
Louis Hultgren House and Sand Pit (Pine County, Minnesota)
Louis J. and Harriet Rozier House (Jefferson County, Missouri)
Louis Jehle House (Christian County, Illinois)
Louis Kissel House (Washington County, Wisconsin)
Queen Anne built by the patriarch of the Kissel industrial family
Louis Kohmueller House (Franklin County, Missouri)
Louis Levey Mansion (Marion County, Indiana)
Louis Levine House (Iron County, Michigan)
Louis Marchetti House (Marathon County, Wisconsin)
Louis May House (Ravalli County, Montana)
Louis McLane House (New Castle County, Delaware)
Louis Menand House (Albany County, New York)
Louis N. and Helen Seaman House (Davison County, South Dakota)
Louis Pfunder House (Multnomah County, Oregon)
Louis Rings Residence (Franklin County, Ohio)
Louis S. Marsh House (King County, Washington)
Louis Sawyer House (Hamilton County, Ohio)
Louis Sincer House (Orleans Parish, Louisiana)