Kotthoff-Weeks Farm Complex (Gasconade County, Missouri)
Kotzow, Louis, House (Providence County, Rhode Island)
Kouns--Hoffman House (Greenup County, Kentucky)
Kouns--Jackson House (Potter County, Texas)
Kovenhoven (Monmouth County, New Jersey)
Kraemer House (Ascension Parish, Louisiana)
Kraemer--Harman House (Garland County, Arkansas)
Kramer House (St. Louis County, Missouri)
Kreischer House (New York County, New York)
Kremer House (Yankton County, South Dakota)
Krenek House (Victoria County, Texas)
Kreuzer Ranch (Napa County, California)
Krietz House (Yamhill County, Oregon)
Kritser House (Jackson County, Missouri)
Krohne Island House (Park County, Montana)
Krohne Spring House (Park County, Montana)
Krom, Lucas, Stone House (Ulster County, New York)
Kromer Flats (Polk County, Iowa)
Kromer House (Bernalillo County, New Mexico)
Kronenberger House (Harris County, Texas)
Krough House (Monterey County, California)
Krueger Mansion (Essex County, New Jersey)
Kruempelman Farmhouse (Kenton County, Kentucky)
Krug House (Montgomery County, Ohio)
Kruger House (Nevada County, California)
Krumdiack Homestead (San Juan County, Washington)
Krumm House (Franklin County, Ohio)
Kuehn House (St. Louis County, Missouri)
Kugel, Peter, House (Barnstable County, Massachusetts)
Kuhn, Samuel and Minette, House (Barnstable County, Massachusetts)
Kuhrt Ranch (Sherman County, Kansas)
Kullgren House (Boulder County, Colorado)
Kunhardt, George, Estate (Essex County, Massachusetts)
Kunkle Log House (Williams County, Ohio)
Kuns--Collier House (McPherson County, Kansas)
Kurt and Meta Schemedes House (Travis County, Texas)
Kurth--Glover House (Angelina County, Texas)
Kurtz House (Washington County, Iowa)
Kurtz-Van Sicklin House (Washington County, Idaho)
Kyle House (Cumberland County, North Carolina)
Kyle Ranch (Clark County, Nevada)
Kyle's Mill House (Rockingham County, Virginia)
L. 0. Cox House (Owen County, Kentucky)
L. A. Pomeroy House (Portage County, Wisconsin)
Former B&B returned to use as a private residence
L. A. Scott House (Collin County, Texas)
L. B. Clegg House (Bexar County, Texas)
L. B. Kinchion House (Bell County, Texas)
L. B. Menefee House (Multnomah County, Oregon)
L. B. Overby House (Caldwell County, Kentucky)
L. C. Norman House (Boone County, Kentucky)
L. C. Ranch Headquarters (Grant County, New Mexico)
L. C. Steele House (Alcorn County, Mississippi)
L. D. Hickerson House (Coffee County, Tennessee)
L. D. Hockersmith House (Hopkins County, Kentucky)
L. D. Hutchinson House (White County, Arkansas)
L. E. Snyder House (Sully County, South Dakota)
L. F. Harriman House (Perkins County, South Dakota)
L. Fay Shepard House (Jerome County, Idaho)
L. H. Hatch House (Franklin County, Idaho)
L. J. Arthur House (Grant County, Wisconsin)
L. J. Welch House (Davison County, South Dakota)
L. L. Bartlett House (Meade County, South Dakota)
L. L. Stein House (Woodward County, Oklahoma)
L. N. Rice House (Thurston County, Washington)
L. Ron Hubbard Residence at Bay Head (Ocean County, New Jersey)
L. S. Good House (Ohio County, West Virginia)
L. T. Lester House (Randall County, Texas)
L. T. Wright House (Bexar County, Texas)
L. V. Woodlee House (Grundy County, Tennessee)
L. W. Clapp House (Sedgwick County, Kansas)
L. W. Olive House (Bastrop County, Texas)
L. W. Peck House (Ashtabula County, Ohio)
L. W. Shevling Ranch (Harding County, South Dakota)
L.D. Reagin House (Sarasota County, Florida)
L.E. Cleveland House (Greene County, New York)
L.I. Roe House (Chippewa County, Wisconsin)
L.W. Ross House (Spencer County, Kentucky)
La Casa Alvarado (Los Angeles County, California)
La Casa del High Jinks (Pinal County, Arizona)
La Casa Primera de Rancho San Jose (Los Angeles County, California)
La Cuidad de Mexico Grocery (Coconino County, Arizona)
La Farge Retainer Houses (Jefferson County, New York)
La Grange (New Castle County, Delaware)
La Grange (Charles County, Maryland)
La Grange Village Historic District (Cook County, Illinois)
La Hacienda (Jefferson County, Colorado)
La Maison Francaise, Whitman College (Walla Walla County, Washington)
Queen Anne style house built in 1905
La Nueva Libertad (Cameron County, Texas)
La Riviere (Radford, Virginia)
La Veille (Calvert County, Maryland)
La Vista (Spotsylvania County, Virginia)
La Vue (Spotsylvania County, Virginia)
La Wis Wis Guard Station No. 1165 (Lewis County, Washington)
Laban Shipp House (Bourbon County, Kentucky)
LaBarre House (Assumption Parish, Louisiana)
Labatut (Pointe Coupee Parish, Louisiana)
Labold House and Gardens (Scioto County, Ohio)
LaBranche Plantation Dependency (St. Charles Parish, Louisiana)
Lacawac (Wayne County, Pennsylvania)
Lace House (Richland County, South Carolina)
Lace House (Columbia County, New York)
Lachlin McTaggert House (Grays Harbor County, Washington)
Lachmund Family House (Sauk County, Wisconsin)
Large, cream city brick residence in the commercial district of Sauk City
Lackey-Overbeck House (Wayne County, Indiana)
LaCroix--Mosher House (Worcester County, Massachusetts)
Lacy-Van Vleet House (Tompkins County, New York)
Ladd Estate Company Model House (Clackamas County, Oregon)
Ladd Farmhouse (Schenectady County, New York)
Ladd's Tavern (Lake County, Ohio)
Ladd--Gilman House (Rockingham County, New Hampshire)
Ladew Topiary Gardens and House (Harford County, Maryland)
Ladies' Literary Club Building (Washtenaw County, Michigan)
Ladless Hill (Jefferson County, Kentucky)
Lafayette House (Boulder County, Colorado)
Lafayette Lamb House (Clinton County, Iowa)
Lafayette McQuown House (Iron County, Michigan)
Lafayette Village (Washington County, Rhode Island)
Lafayette-Durfee House (Bristol County, Massachusetts)
Lafitte's Blacksmith Shop (Orleans Parish, Louisiana)
LaFleur House (St. Landry Parish, Louisiana)
Laflin--Phelps Homestead (Hampden County, Massachusetts)
LaGlorieta House (Bernalillo County, New Mexico)
LaGrange (Dorchester County, Maryland)
LaGrange (Vance County, North Carolina)
Laidley-Summers-Quarrier House (Kanawha County, West Virginia)
Lain-Estburg House (Waukesha County, Wisconsin)
Greek Revival Home repurposed to American Legion Hall and restaurant.
Laing House of Plainfield Plantation (Middlesex County, New Jersey)
Lair House (Monroe County, Arkansas)
Lairdland Farm House (Giles County, Tennessee)
Lake Agnes Cabin (Jackson County, Colorado)
Lake Bridenthal House (Gage County, Nebraska)
Lake Guernsey State Park (Platte County, Wyoming)
Lake Mansion (Washoe County, Nevada)
Lake O'Woods (Warren County, North Carolina)
Lake of the Forest Historic District (Wyandotte County, Kansas)
Lake, Stanley, House (Essex County, Massachusetts)
Lake-Bell House (Washington County, Arkansas)
Lake-Little House (Jefferson County, Washington)
Lake-Peterson House (Winnebago County, Illinois)
Lakeport Plantation (Chicot County, Arkansas)
Lakeside (Pointe Coupee Parish, Louisiana)
Lakeside Development (Chittenden County, Vermont)
Lakeview House (Carson City, Nevada)
Lakewood (Tensas Parish, Louisiana)
Lamar--Calder House (Fort Bend County, Texas)
Lamb Homestead (New London County, Connecticut)
Lamb--McSwain House (Pulaski County, Arkansas)
Lamb--Stephens House (Williamson County, Tennessee)
Lamb-Ferebee House (Camden County, North Carolina)
Lamberson-Markley Houses (Coshocton County, Ohio)
Lambert House (St. James Parish, Louisiana)
Lambert House (Drew County, Arkansas)
Lambert Tevoet House (Scott County, Iowa)
Lambert, David, House (Fairfield County, Connecticut)
Lambert, Thomas, House (Essex County, Massachusetts)
Lambert-Parent House (Darke County, Ohio)
Lamberton Cabin (Benton County, Arkansas)
Lamerton House (Garfield County, Oklahoma)
Lamorandier-Prudhomme-Jackson House (St. Landry Parish, Louisiana)
Lampert--Wildflower House (Boone County, Illinois)
Lampkin-Owens House (Oktibbeha County, Mississippi)
Lamprey, Reuben, Homestead (Rockingham County, New Hampshire)
Lampson P. Sherman House (Polk County, Iowa)
Lampton House (Clark County, Kentucky)
Lampton--Thompson--Bourne House (Marion County, Mississippi)
Lamson, Newton, House (Middlesex County, Massachusetts)
Lancaster House (Ravalli County, Montana)
Lance House (St. Louis County, Missouri)
Lancelot C. Ewbank House (Parke County, Indiana)
Land of Clover (Suffolk County, New York)
Land's End (Perquimans County, North Carolina)
Land's End Plantation (De Soto Parish, Louisiana)
Land's End Plantation (Pulaski County, Arkansas)
Lander--Hopkins House (Victoria County, Texas)
Landergin-Harrington House (Potter County, Texas)
Landis Homestead (Montgomery County, Pennsylvania)
Landis Valley Museum (Lancaster County, Pennsylvania)
Landmark Inn Complex (Medina County, Texas)
Landon Rich House (Bear Lake County, Idaho)
Landon, Samuel, House (Suffolk County, New York)
Landrum (Barren County, Kentucky)
Landry Plantation House (Vermilion Parish, Louisiana)
Lands End (Gloucester County, Virginia)
Landsberger--Gerhardt House (Rutherford County, Tennessee)
Landsford Plantation House (Chester County, South Carolina)
Landt Building (Hamilton County, Ohio)
Landward House (Jefferson County, Kentucky)
Lane Cottage (Essex County, New York)
Lane House (Franklin County, Pennsylvania)
Lane House (Walker County, Georgia)
Lane Plantation House (East Feliciana Parish, Louisiana)
Lane, Anthony, House (Worcester County, Massachusetts)
Lane, Deacon Samuel and Jabez, Homestead (Rockingham County, New Hampshire)
Lane, Edward H., House (Grafton County, New Hampshire)
Lane, Fitz Henry, House (Essex County, Massachusetts)
In Capt. Solomon Jacobs Park