Sky City, also called Sky City One, is a current building project in Changsha, Hunan, China. When completed, its proposed height of 2,749 feet will make it the tallest building in the world. Broad Sustainable Building, the project’s prospective builders, is planning to utilize prefabricated pieces built off-site to assemble Sky City in as short a time period as 90 days. The building should be completed by the end of 2013.

When finished, Sky City will be comprised of 13 million square feet over 220 floors. The first five floors will have childcare, schools, and health clinics. Floors six through 15 will be available for office rental space. Floors 16 through 180 will be used solely for residential and hotel properties. These high floors will provide 5,000 homes for 17,400 residents, as well as a hotel capable of housing up to 1,000 guests. The top floors will be retail spaces, including many restaurants and a cinema. One-hundred and four high-speed elevators will be located throughout the structure.

The ecologically minded building company has been commended on its attention to sustaining the environment. Windows will be made up of four layers of glass, insulating the building and using less energy. Plans indicate the special window construction will keep the building’s constant temperature regulated between 68 and 81 degrees Fahrenheit. In a country that struggles with poor air quality, filters inside Sky City will maintain indoor air quality that is up to 20 times cleaner than outside. All lights in Sky City will be made of LEDs, which will also conserve energy. Overall, Sky City is estimated to require only one fifth of the expected energy consumption.

China Map

Sky City Shopping

In addition to floors reserved for retail and dining spaces, Sky City will have shopping options available throughout its 220 floors. Kiosk shops will be located in public spaces and hallways, providing ease and entertainment for its many residents and visitors.