Logan Circle is a traffic circle, neighborhood, and historic district in the Northwest quadrant of Washington, D.C. It is the only major circle downtown that remains entirely residential. The primarily residential neighborhood includes two historic districts, properties listed on the National Register of Historic Places, and sites designated D.C. Historic Landmarks.
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 Gladstone and Hawarden, designed by architect George S. Cooper in 1900, are early examples of Washington, D.C.’s middle class apartment houses. Named for Prime Minister William Ewart Gladstone and his estate Hawarden Castle, they are the first documented twin apartment buildings in Washington, D.C.
The “Watermelon House” is an unofficial neighborhood landmark that features a watermelon mural painted on the side of a 19th-century residence.