Sursum Corda Cooperative is a small neighborhood located in Washington, D.C., bounded by North Capitol Street on the east, First Street NW to the west, K Street NW to the south, and New York Avenue NW to the north. It consists of 199 housing units constructed as an experiment in cooperatively managed low-income housing in 1968. Managed by the District of Columbia Housing Authority, it became a notorious open air drug market plagued by violence and poverty in the 1980s. In 2005 the District of Columbia offered to purchase the complex as part of its "New Communities" plan for neighborhood rehabilitation.