that lasted from the early 1960s to the early 1990s, during which time the city saw the completion of 23 of its 30 tallest buildings, including the.S. Martin 48 1979 Office Formerly known as Citigroup Center Formerly known as the 444 Flower Building Place 620 (189) William Pereira 42 1969 Office Tallest building constructed in Los Angeles in the 1960s kpmg Tower 606 (185) Skidmore, Owings. Retrieved May 5, 2008. As of January 2018, Los Angeles has a total of 740 high-rise buildings over 115 feet (35 m 6 7 90 buildings over 300 feet (91.5 m 8 47 buildings over 400 feet (121.9 m 19 buildings over 600 feet. 10 111 rehabilitate and add to the LA Times Building after the Times vacates to El Segundo neighborhood. LA City Hall Complex Proposed office. A b "City National Tower". Cobb 73 1989 Office 15th-tallest building in the United States, third tallest building on the West Coast of the United States, third tallest building in California ; tallest building in the world with a helipad on its roof; tallest.