Skyscrapers are difficult and expensive to construct in Los Angeles due to the city's high rate of earthquakes and position near the San Andreas fault line, as well as the resulting difficulty of adhering to the city's rigorous engineering standards. Nevertheless, a number of successful and iconic skyscrapers dot the downtown Los Angeles skyline. 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". Los Angeles 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 30 of its 32 tallest buildings, including the U.S. Bank Tower, Aon Tower, and Two California Plaza. The city is the site of 25 skyscrapers at least 492 feet (150 m) in height, more than any other city in the Pacific coast region. As of July 2011[update], there are 505 completed high-rises in the city.
The most recently completed skyscraper in Los Angeles is L.A. LiveRitz-Carlton Hotels & Condominiums, which rises 653 feet (199 m) and 54 floors.
The Wilshire Grand Tower, a hotel and office tower which is under construction, is expected to rise 73 stories and 1,100 feet (335 m) in height. Once completed in 2017, it will surpass the U.S. Bank Tower to become the tallest building in the United States, west of Chicago.
As of May 2011[update], there are 60 high-rise buildings under construction, approved for construction, and proposed for construction in Los Angeles. 37 of these 60 buildings are over 100 meters tall.
This lists ranks Los Angeles 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. An equal sign (=) following a rank indicates the same height between two or more buildings. The "Year" column indicates the year in which a building was completed.
A.^ This building was originally known as the Braly Building, but has since been renamed the Continental Building.
B.^ Official height figures have never been released by this building's developer.
C. ^ ab The City National Tower and the Paul Hastings Tower are twin towers, both rising 699 feet (213 m). As both buildings were completed in 1972, Los Angeles had two tallest buildings until the completion of Aon Center in 1974.