<P> The Great Depression and World War II halted any further skyscraper construction until the 1950s when the Equitable Life Building (1955) and Crown - Zellerbach Building (1959) were completed . Many of San Francisco's tallest buildings, particularly its office skyscrapers, were completed in a building boom from the late 1960s until the late 1980s . During the 1960s, at least 40 new skyscrapers were built, and the Hartford Building (1965), 44 Montgomery (1967), Bank of America Center (1969), and Transamerica Pyramid (1972) each, in turn, took the title of tallest building in California upon completion . At 853 feet (260 m) tall, the Transamerica Pyramid was one of the most controversial, with critics suggesting that it be torn down even before it was completed . </P> <P> This surge of construction was dubbed "Manhattanization" by opponents and led to local legislation that set some of the strictest building height limits and regulations in the country . In 1985, San Francisco adopted the Downtown Plan, which slowed development in the Financial District north of Market Street and directed it to the area South of Market around the Transbay Terminal . Over 250 historic buildings were protected from development and developers were required to set aside open space for new projects . To prevent excessive growth and smooth the boom - and - bust building cycle, the Plan included an annual limit of 950,000 square feet (88,000 m) for new office development, although it grandfathered millions of square feet of proposals already in the development pipeline . In response, voters approved Proposition M in November 1986 that reduced the annual limit to 475,000 square feet (44,100 m) until the grandfathered square footage was accounted for, which occurred in 1999 . </P> <P> These limits, combined with the early 1990s recession, led to a significant slowdown of skyscraper construction during the late 1980s and 1990s . To guide new development, the city passed several neighborhood plans, such as the Rincon Hill Plan in 2005 and Transit Center District Plan in 2012, which allow taller skyscrapers in certain specific locations in the South of Market area . Since the early 2000s, the city has been undergoing another building boom, with numerous buildings over 400 feet (122 m) proposed, approved, or under construction; some, such as the two - towered One Rincon Hill, have been completed . Several taller buildings are under construction in connection with the new Transbay Transit Center, including Salesforce Tower, which broke ground in 2013 and topped - out at 1,070 feet (330 m) in April 2017 . When completed this building will be the first supertall skyscraper in San Francisco and among the tallest in the United States . </P> <P> This list ranks San Francisco skyscrapers that stand at least 400 feet (122 m) tall, based on standard height measurement . This includes spires and architectural details but does not include antenna masts . The "Year" column indicates the year in which a building was completed . </P>

What is the tallest skyscraper in san francisco
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