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John Hancock CenterDownload Project Factsheet

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Official Name John Hancock Center
Former / Other Name Big John
Type building
Status Completed
Country United States
State Illinois
City Chicago
Street Address 875 North Michigan Avenue (Map)
Building Function residential / office
Structural Material steel
Start of Construction 1965
Completion 1969
Global Ranking #34 tallest in the World
Regional Ranking #6 tallest in North America
National Ranking #6 tallest in United States
City Ranking #4 tallest in Chicago
Official Websites 360 Chicago
John Hancock Center
Height: Architectural 343.7 meter / 1128 feet
Height: Occupied 321.3 meter / 1054 feet
Height: To Tip 456.9 meter / 1499 feet
Height: Observatory 313.8 meter / 1030 feet
Floors Above Ground 100
# of Elevators 50
Top Elevator Speed 9.2 m/s
Tower GFA 260,126 m² / 2,799,973 ft²
# of Parking Spaces 750
Companies Involved
Owner Hearn Company
Developer Jerry Wolman Associates
Architect Skidmore, Owings & Merrill
Structural Engineer Skidmore, Owings & Merrill
Main Contractor Tishman Construction
Material Suppliers
• Cladding Cupples
• Elevator Otis Elevator Company
• Sealants Dow Corning Corporation
Technical Papers
Architecture and Structural Form in Tall Steel Buildings
A. Sev (Mimar Sinan Univ.), CTBUH Journal
Reflections on the Hancock Concept
H. Iyengar (SOM), CTBUH Journal

Other CTBUH Links
The John Hancock Center, Chicago
CTBUH Featured Tall Building, 2011
John Hancock Center Visit
CTBUH Tour, 2009