Harbour Square (NRIS 100003158)

Address: 400-560 (even) N St. SW, 1301-1327 (odd) 4th St, SW, Washington, D.C.. County/parish:  District Of Columbia.

Added to the National Register of Historic Places November 28, 2018.

National Park Service documentation: https://npgallery.nps.gov/AssetDetail/NRIS/100003158

LC