List of tallest buildings
The international non-profit organization Council on Tall Buildings and Urban Habitat (CTBUH) was formed in 1969 and announces the title of "The World's Tallest Building" and sets the standards by which buildings are measured. It maintains a list of the 100 tallest completed buildings in the world. The organization currently ranks Burj Khalifa in Dubai as the tallest at . The CTBUH only recognizes buildings that are complete however, and some buildings included within the lists in this article are not considered finished by the CTBUH.
List of tallest residential buildings
Since 2000, when CTBUH started maintaining a list of tallest residential skyscrapers The Belcher's Tower 1 and The Belcher's Tower 2 located in Hong Kong were the first tallest residential skyscrapers whose heights equal completed in 2000. In 2001, Trump World Tower in New York City became the tallest residential building in the world until it was surpassed in 2003 by the 21st Century Tower in Dubai. In 2012, Princess Tower in Dubai became the tallest residential building in the world before being surpassed by 432 Park Avenue in New York City in 2014. The percentage of residential buildings has been increased from 34 percent in 2009 to 45 percent in 2010 in residential skyscrapers whose height exceeds 200 metres, making Burj Khalifa the world's first megatall skyscraper to include residential space.