The History of Treasure Island

Treasure Island is a man-made island connected via causeway to Yerba Buena Island, in the middle of San Francisco Bay. Treasure Island was constructed in the 1930s to celebrate the opening of the Bay Bridge and the Golden Gate Bridge and was used to host the 1939 International Golden Gate Exhibition, a World’s Fair event.
As World War II began, the U.S. Navy established Naval Station Treasure Island as a reception center for sailors headed to the Pacific. It later served as a training and auxiliary aircraft facility.
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In 1997, Naval Station Treasure Island was decommissioned as part of the Base Realignment and Closure Program and the federal government gave San Francisco the opportunity to acquire the property. As plans for redevelopment took shape, the San Francisco Board of Supervisors voted to temporarily ease the city’s affordable-housing crisis by utilizing existing military housing on an interim basis. 

In 2011, The City and County of San Francisco and its Treasure Island Development Authority (TIDA) unanimously approved a plan by Treasure Island Community Development (TICD) to redevelop both Treasure Island and Yerba Buena Island.




In 2015, the U.S. Navy officially conveyed the first 290 acres – all of the Navy’s land on Yerba Buena Island and approximately half the land on Treasure Island – to the City of San Francisco. The Navy also turned over 518 acres of submerged land surrounding the islands.


For more historic information visit Treasure Island Museum’s website here.