The following list presents the full set of National Register of Historic Places listings in Multnomah County, Oregon. However, please see separate articles for listings in each of Portland's six quadrants.
In the law regulating historic districts in the United States, a contributing property or contributing resource is any building, object, or structure which adds to the historical integrity or architectural qualities that make the historic district significant. Government agencies, at the state, national, and local level in the United States, have differing definitions of what constitutes a contributing property but there are common characteristics. Local laws often regulate the changes that can be made to contributing structures within designated historic districts. The first local ordinances dealing with the alteration of buildings within historic districts was passed in Charleston, South Carolina in 1931.
The U.S. National Register of Historic Places (NRHP) classifies its listings by various types of properties. Listed properties generally fall into one of five categories, though there are special considerations for other types of properties which do not fit into these five broad categories or fit into more specialized subcategories. The five general categories for NRHP properties are: building, district, object, site, and structure.
The Frank Lloyd Wright/Prairie School of Architecture Historic District is a residential neighborhood in the Cook County, Illinois village of Oak Park, United States. The Frank Lloyd Wright Historic District is both a federally designated historic district listed on the U.S. National Register of Historic Places and a local historic district within the village of Oak Park. The districts have differing boundaries and contributing properties, over 20 of which were designed by Frank Lloyd Wright, widely regarded as the greatest American architect.
The Isidore H. Heller House is a house located at 5132 South Woodlawn Avenue in the Hyde Park community area of Chicago in Cook County, Illinois, United States. The house was designed by American architect Frank Lloyd Wright. The design is credited as one of the turning points in Wright's shift to geometric, Prairie School architecture, which is defined by horizontal lines, flat or hipped roofs with broad overhanging eaves, windows grouped in horizontal bands, and an integration with the landscape, which is meant to evoke native Prairie surroundings.
The Laura Gale House, also known as the Mrs. Thomas H. Gale House, is a home in the Chicago suburb of Oak Park, Illinois, United States. The house was designed by master architect Frank Lloyd Wright and built in 1909. It is located within the boundaries of the Frank Lloyd Wright-Prairie School of Architecture Historic District and has been listed on the U.S. National Register of Historic Places since March 5, 1970.
The Walter H. Gale House, located in the Chicago suburb of Oak Park, Illinois, was designed by Frank Lloyd Wright and constructed in 1893. The house was commissioned by Walter H. Gale of a prominent Oak Park family and is the first home Wright designed after leaving the firm of Adler & Sullivan. The Gale House was listed on the U.S. National Register of Historic Places on August 17, 1973.
The F.F. Tomek House, also known as The Ship House or as the Ferdinand Frederick and Emily Tomek House, is a historic house in Riverside, Illinois. It is prominent example of Prairie School design by Frank Lloyd Wright. Designed in 1904 and construction finished in 1906, the Tomek House is a well-preserved example of the style. In addition to being a good example of the Prairie style, the Tomek house documents the development of the style, which reached its clearest expression in Wright's Robie House in 1908. It is included in the Riverside Historic District and was declared a National Historic Landmark in 1999.
Herbert and Katherine Jacobs Second House is a historic house located at 3995 Shawn Trail in Madison, Wisconsin, United States. Built in 1946–48, the house was the second of two designed by Frank Lloyd Wright for journalist Herbert Jacobs and his wife Katherine. The house's design is unique among Wright's works; he called the style the "Solar Hemicycle" due to its semicircular layout and use of natural materials to conserve solar energy. The house was added to the National Register of Historic Places in 1974 and declared a National Historic Landmark in 2003.
Edenton Historic District is a national historic district located at Edenton, Chowan County, North Carolina. The district encompasses 342 contributing buildings, 4 contributing sites, and 3 contributing structures. It includes several buildings that are individually listed on the National Register. The Lane House, possibly the oldest surviving house in North Carolina, is owned by Steve and Linda Lane and is located within the district. Also located in the district are the Dixon-Powell House, William Leary House, and Louis Ziegler House designed by architect George Franklin Barber.
The Frank J. Baker House is a 4,800-square-foot Prairie School style house located at 507 Lake Avenue in Wilmette, Illinois. The house, which was designed by Frank Lloyd Wright, was built in 1909, and features five bedrooms, three and a half bathrooms, and three fireplaces. At this point in his career, Wright was experimenting with two-story construction and the T-shaped floor plan. This building was part of a series of T-shaped floor planned buildings designed by Wright, similar in design to Wright's Isabel Roberts House. This home also perfectly embodies Wright's use of the Prairie Style through the use of strong horizontal orientation, a low hanging roof, and deeply expressed overhangs. The house's two-story living room features a brick fireplace, a sloped ceiling, and leaded glass windows along the north wall; it is one of the few remaining two-story interiors with the T-shaped floor plan designed by Wright.
The Reed Smoot House, also known as Mrs. Harlow E. Smoot House, was the home of Reed Smoot from 1892 to his death in 1941, and is located at 183 E. 100 South, Provo, Utah, United States. Smoot was a prominent US Senator best known for advocacy of protectionism and the Smoot–Hawley Tariff Act.
The Robert H. Sunday House is located in Marshalltown, Iowa, United States. It was designed by Frank Lloyd Wright in the Usonian style, and was listed on the National Register of Historic Places in 1988. Initially the Sunday's choose the Usonian Automatic, a natural concrete block model, for their home. When it provided unworkable, Wright sent the plans for this house. In style and materials it is very similar to the 1953 Usonian Exhibition House. It was the sixth of seven houses designed by Wright and built in this style in Iowa. Sunday, who owned Marshall Lumber in Marshalltown, acted as his own general contractor. In fact, he and his wife did much of the work themselves. It is also believed to be last of this style built in brick. John H. "Jack" Howe, a Wright assistant who supervised the initial construction, designed an addition to this house in 1970 that conforms seamlessly with the original. It includes the family room, family room terrace, and the dining room. The original house followed an "L" shaped plan, and with the addition it is now a "T" shaped plan. Howe had previously designed (1964) the building for Sunday's business.
The C & H Refinery Historic District comprises an intact industrial complex in Lusk, Wyoming that documents an early 20th-century refinery. The C & H Refinery is noted as the smallest functioning oil refinery in the world, and may be the only remaining thermal distillation refinery, all other refineries having modernized to the catalytic cracking method.
