Diamond Heights Project Area B-1

The survey area was designated by the Board of Supervisors on July 24, 1950, and a plan was approved by the board on Oct. 24, 1955. As late as the 1950s, three-fourths of Diamond Heights lay undeveloped and uninhabited. In 1954, a California Appeals Court decision (San Francisco Redevelopment Agency v. Hayes) affirmed the validity of defining vacant land as blighted under the California Community Redevelopment Law, clearing the way for the redevelopment of Diamond Heights. The project was closed out on Sept. 27, 1978. Construction was substantially completed in 1979.