Question: How many times has the firm that built Century Plaza South Tower in L.A. changed its name ?

text: List of tallest buildings in Los Angeles
Under construction buildings
This lists buildings that are under construction in Los Angeles and are planned to rise at least 300 feet ( 91.5 meters ) .
The tallest building in Los Angeles is the Wilshire Grand Center, which became the tallest building in 2016. It is also the tallest building in the U.S. state of California. The Wilshire Grand Center also stands as the tallest building west of the Mississippi River, and the 11th-tallest building in the United States. Seven of the ten tallest buildings in California are located in Los Angeles. The 73-story U.S. Bank Tower, which rises 1,018 feet (310 m) in Downtown Los Angeles and was completed in 1989, is now the second-tallest building in Los Angeles. The history of skyscrapers in Los Angeles began with the 1903 completion of the Braly Building, which is often regarded as the first high-rise in the city; it rises 13 floors and 151 feet (46 m) in height. The building, originally constructed as a commercial structure, has since been renovated into a residential tower and is now known as the Continental Building. In 1904, Los Angeles imposed height restrictions throughout the city, prohibiting the construction of any building taller than 150 feet (46 m). An exception was made for the Los Angeles City Hall, built in 1928, which stands at 454 feet (138 m). This effectively limited the height of non-government buildings to 13 stories, and was intended to address local concerns about growing congestion and over development at the time. That height limit was lifted in Downtown Los Angeles by the city government in 1957. Los Angeles (and especially Downtown) then went through a large building boom 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 U.S. Bank Tower, the Aon Center, and Two California Plaza.
Name Height ft ( m ) Floors Year Neighborhood Notes
Century Plaza North Tower 600 ( 183 ) 46 2020 Century City ( 2025 Ave of the Stars Ave . ) Residential \ Twin towers designed by Pei Cobb Freed & Partners . Project is a condo addition to the renovated Century Plaza Hotel
Century Plaza South Tower 600 ( 183 ) 46 2020 Century City ( 2025 Ave of the Stars Ave . ) Twin Residential Tower
Brookfield Tower 695 ( 212 ) 64 2024 South Park ( 960 W. 7th St . ) Residential / above Figat7th shopping Center and adjacent to 777 Tower
Landmark Tower Two 349 ( 106 ) 34 2021 Sawtelle ( 11750 Wilshire Blvd . ) Residential Tower
Fig+Pico Tower I 529 ( 161 ) 42 2022 South Park ( 1258 S. Figueroa St . ) Moxy Hotel and AC Branded Hotels by Marriott / Ground Retail . Across Figueroa Street from the convention center 's South Hall . Same block as Circa ( SW Corner )
Constellation Park 523 ( 159 ) 45 2022 Century City ( 1950 Ave of the Stars . ) Residential above the under construction Purple Line Extension Century City Station . Designed by Johnson Fain
Grand Avenue Project Tower I 522 ( 159 ) 39 2022 Bunker Hill ( 100 S. Grand Ave . ) Residential Tower
Perla on Broadway 388 ( 118 ) 35 2020 Historic Core ( 400 S. Broadway ) New art deco building tower
Grand Avenue Project Tower II 379 ( 116 ) 20 2022 Bunker Hill ( 100 S. Grand Ave . ) Under Construction retail , Equinox Fitness and Hotel . Designed by Frank Gehry
Cumulus Tower 320 ( 98 ) 30 2020 West Adams ( 3321 S. La Cienega Blvd . ) Adjacent to La Cienega/Jefferson Metro Station . Designed by TCA Architects