KingKey 100, China
It is located on Shennan East Road and within Caiwuwei, an area often described as the 'financial district' of Shenzhen. It belongs to Shenzhen's Luohu District and is situated east of Lizhi Park, approximately one kilometer north of the border between mainland China and Hong Kong.
The mixed-use building rises 441.8 metres (1,449 ft) and contains 100 floors for office space and a hotel. Out of those 100 floors, 68 are used for 173,000 square metres (1,862,157 sq ft) of Class A office space, 22 stories for a 35,000 square metres (376,737 sq ft) six-star business hotel and the top four floors of the skyscraper hold a garden and several restaurants. Adjacent to KK100 is the KK Mall, which opened its doors November 26, 2010, and contains luxury brand stores, restaurants and a supermarket. The KK Mall also hosts Shenzhen's first IMAX cinema.
The St. Regis Hotel occupies floors 75 to 98 of the main tower, which opened in September 2011.
It is currently the second tallest building in Shenzhen as well as being the 14th tallest building in the world. It is the tallest building ever designed by a British architect.
There is a water fountain in front of the building, and an observation deck near the top. In December 2011, the Emporis Skyscraper Award awarded the building a fourth place.
The building has a height-width ratio of 9.5:1, thus becoming one of China's slimmest buildings. The building aims to be a sustainable example for the city, employing various approaches to create a “green” development. In addition to the building form’s response to the local climate, a free-cooling system was used, as well as a highly developed envelope to improve the performance of the building. Vertical and horizontal fins were employed on the façade to reduce glare and solar gain, increasing the comfort of the inhabitants. Overall, the complex hopes to reduce demands on infrastructure by providing a place where people can work and live, eliminating needs for transit between these uses.