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Height: Occupied
733.5 m / 2,406 ft
 
Height: To Tip
838 m / 2,749 ft
Height: Architectural
838 m / 2,749 ft
 
Sky City Outline
Height: Observatory
733.5 m / 2,406 ft
Height: Helipad
739.8 m / 2,427 ft
Floors Above Ground
202
Floors Below Ground
6
# of Elevators
93
Top Elevator Speed
18 m/s
Tower GFA
1,050,000 m² / 11,302,106 ft²
# of Hotel Rooms
250

Facts

Official Name Sky City
Other Names J220, Yuanwang Mansion
Structure Type Building
Status Never Completed
Country China
City Changsha
Street Address & Map Chenjia Maowu
Building Function hotel / residential / education / hospital / office
Structural Material steel
Proposed 2012
Construction Start 2013

Companies Involved

Owner/Developer Broad Group
Architect
Design Broad Group
Main Contractor Broad Group
Other Consultant
• Wind BMT Fluid Mechanics Ltd.

CTBUH Initiatives

World Architecture Day Prefab Panel Debates on “Factory-Made”
11 Oct 2013 – Event Report

Atlantic Yards B2 – Modular on the Rise
24 Jul 2013 – Event Report

Inside the China Broad Group
Aug 2012 – Tour Report

More Initiatives

CTBUH Initiatives Related to Sky City

World Architecture Day Prefab Panel Debates on “Factory-Made”
11 Oct 2013, New York City – Event Report
CTBUH Executive Director Antony Wood led a panel focused on the exigencies of pre-fabrication and modular construction.
Atlantic Yards B2 – Modular on the Rise
24 Jul 2013, Chicago – Event Report
It seems increasingly evident that 2013 will be remembered as The Year of Prefab in the tall-building community. At 32 stories, B2 promises to become the tallest modular building.
Inside the China Broad Group
Aug 2012, Changsha – Tour Report
CTBUH’s Executive Director tours the headquarters of the company behind the 30-story tower erected in 15 days. Now they want to build the world’s tallest tower in nine months.
CTBUH Releases Year in Review: Tall Trends of 2014
Dec 2014 – CTBUH Journal Paper
An All-Time Record 97 Buildings of 200 Meters or Higher Completed in 2014 and 2014 showed further shifts towards Asia, and also surprising developments in building functions and structural materials.

Videos

Interview: Sky City
12 Jun 2013 – Zhang Yue, BROAD Group

Sky City: World's Next Tallest
12 Jun 2013 – Zhang Yue, BROAD Group

Interview: Broad Sustainable Building
21 Sep 2012 – Ying Tang, BROAD Group

More Videos

Videos Related to Sky City

Videos Related to Sky City

Interview: Sky City
12 Jun 2013 – 2013 London Conference Interviews; Zhang Yue, BROAD Group
Zhang Yue of China Broad Group is interviewed by Jeff Herzer during the 2013 CTBUH London Conference at The Brewery, London. Zhang talks about Sky City, the Broad Group's…
Sky City: World's Next Tallest
12 Jun 2013 – Presentation at CTBUH 2013 London Conference; Zhang Yue, BROAD Group
The China Broad Group captured the imagination of the entire world with the time lapse video of their 30-story pre-fabricated tower being erected in just 15 days in China…
Interview: Broad Sustainable Building
21 Sep 2012 – 2012 Shanghai Congress Interviews; Ying Tang, BROAD Group
Ying Tang of Broad Sustainable Building is interviewed by Jeff Herzer during the 2012 CTBUH Shanghai Congress at the Jin Mao, Shanghai. Ying Tang discusses the current…
Interview: Prefabrication in the Tall Building Industry
21 Sep 2012 – 2012 Shanghai Congress Interviews; Andy Davids, Hyder Consulting
Andy Davids of Hyder Consulting is interviewed by Jeff Herzer during the 2012 CTBUH Shanghai Congress at the Jin Mao, Shanghai. Andy discusses the 838-meter BROAD Group…
Interview: China's Future Tallest
20 Sep 2012 – 2012 Shanghai Congress Interviews; David Malott, KPF
David Malott of Kohn Pedersen Fox Associates is interviewed by Jeff Herzer during the 2012 CTBUH Shanghai Congress at the Jin Mao, Shanghai. David discusses two of China'…
Interview: Leadenhall Building
19 Sep 2012 – 2012 Shanghai Congress Interviews; David Scott, Laing O'Rourke
David Scott of Laing O'Rourke is interviewed by Jeff Herzer during the 2012 CTBUH Shanghai Congress at the Jin Mao, Shanghai. David talks about prefabrication of…
The Next Generation of Ultra High-Rise Buildings
19 Sep 2012 – Presentation at CTBUH 2012 9th World Congress, Shanghai; Andy Davids, Hyder Consulting
In recent times, several invitations have been issued by Governmental and Private Bodies to develop the next tallest building in the world, often with target heights…
Interview: Shanghai Tower and Ping An Finance Center
18 Sep 2012 – 2012 Shanghai Congress Interviews; Dennis Poon, Thornton Tomasetti
Dennis Poon of Thornton Tomasetti is interviewed by Jeff Herzer during the 2012 CTBUH Shanghai Congress at the Jin Mao, Shanghai. Dennis discusses two megatall towers…
Interview: Tall Construction in China
18 Sep 2012 – 2012 Shanghai Congress Interviews; Timothy Johnson, NBBJ
Timothy Johnson of NBBJ is interviewed by Jeff Herzer during the 2012 CTBUH Shanghai Congress at the Jin Mao, Shanghai. Timothy discusses the future of tall construction…

Browse hundreds of other videos from Council events including conferences and interviews with prominent tall building professionals in the Video Library

Research Papers

Year in Review: Tall Trends of 2014
Dec 2014 – CTBUH Journal, 2015 Issue I

Debating Tall: Is Sky City's Prefabricated Approach Viable for the Future of Megatall Buildings?
30 Oct 2013 – CTBUH Journal, 2013 Issue Iv


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