The Logan Circle Historic District is an eight-block area surrounding the circle, containing 135 late-19th-century residences designed predominantly in the Late Victorian and Richardsonian Romanesque styles of architecture. The district was added to the National Register of Historic Places on June 30, 1972. In addition to the Logan Circle Historic District, the neighborhood includes the much larger Fourteenth Street Historic District, added to the NRHP in 1994. The district’s approximately 765 contributing properties are considered historically significant because they represent residential and commercial development resulting from one of the earliest streetcar lines in Washington, D.C., the Capital Traction Company’s 14th Street line, built in the 1880s. The former home of Mary McLeod Bethune, an African American educator, author, and civil rights leader who founded the National Council of Negro Women, is located at 1318 Vermont Avenue NW, one block south of the circle. The Second Empire-style building is a designated National Historic Site and houses the Mary McLeod Bethune Memorial Museum and the National Archives for Black Women’s History.
The District of Columbia Inventory of Historic Sites includes several properties in Logan Circle which are not listed on the National Register of Historic Places. Among them are the former residences of: Charles Manuel “Sweet Daddy” Grace, flamboyant founder of the United House of Prayer For All People; John A. Lankford, the first African American architect in Washington, D.C.; Belford Lawson, Jr., lead attorney in the landmark case New Negro Alliance v. Sanitary Grocery Co.; Alain LeRoy Locke, the first African American Rhodes Scholar and central figure in the Harlem Renaissance; Mary Jane Patterson, the first African American woman to earn a bachelor’s degree; Ella Watson, subject of Gordon Parks’s famous photograph American Gothic, Washington, D.C.; and James Lesesne Wells, noted graphic artist and longtime art instructor at Howard University. The “Watermelon House” is an unofficial neighborhood landmark that features a watermelon mural painted on the side of a 19th-century residence