Treasure Island is a manmade landform at the center of San Francisco Bay, created in 1936 for the Golden Gate International Exposition of 1939. It is connected to the natural landform of Yerba Buena Island. The City of San Francisco required a Historic Resource Evaluation to provide a description of the island, historical research, and historical resource listings in addition to evaluation of the proposed redevelopment project for the island after its closure as a Navy base. Knapp Architects performed a historic resources survey of selected post-World War II and Cold War Era buildings and prepared a report noting the structures and objects which would be affected by the proposed redevelopment. The report included a dozen or so buildings and structures built between 1947 and 1960 and three landscapes, which are remnants of the 1939 Exposition.