text: The plaza is located south of Independence Avenue SW between 12th and 9th Streets SW (9th Street actually runs underneath the centers of the buildings on the easternmost side of the plaza). It was built perpendicular to L'Enfant Promenade, a north-south running street and pedestrian esplanade part of which is directly above 10th Street SW. The plaza is named for Pierre (Peter) Charles L'Enfant, the architect and planner who first designed a street layout for the capital city (see L'Enfant Plan). It was dedicated in 1968 after completion of the north and south buildings.
  Planning
  L'Enfant Plaza was part of the Southwest Washington, D.C. urban renewal project, one of the earliest urban renewal projects in the U.S., and the first such in Washington, D.C. The rapid expansion of the population of Washington, D.C., during World War II led to the extensive construction of suburban office buildings and housing tracts. But with federal agencies (which were the area's largest employers) restricted to the city center, a movement began after the war to redevelop Washington's older, more dilapidated, single-family-dwelling neighborhoods to provide high-density, modern housing for workers. In 1946, the United States Congress passed the District of Columbia Redevelopment Act, which established the District of Columbia Redevelopment Land Agency (RLA) and provided legal authority to clear land and funds to spur redevelopment in the capital. Congress also gave the National Capital Planning Commission (NCPC) the authority to designate which land would be redeveloped, and how. The RLA was not funded, however, until passage of the Housing Act of 1949.