The Franklin - North Tower

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Height: Occupied
252 m / 827 ft
Height: To Tip
306.9 m / 1,007 ft
Height: Architectural
306.9 m / 1,007 ft
The Franklin - North Tower Outline
Floors Above Ground
Floors Below Ground
Tower GFA
157,934 m² / 1,699,987 ft²


Official Name The Franklin - North Tower
Name of Complex The Franklin
Other Names The Franklin Center, AT&T Corporate Center
Structure Type Building
Status Completed
Country United States
City Chicago
Street Address & Map 227 West Monroe Street
Postal Code 60603
Building Function office
Structural Material composite
  • Core: Steel
  • Columns: Reinforced Concrete
  • Floor Spanning: Steel
Energy Label LEED Silver O+M: Existing Buildings
Construction Start 1987
Completion 1989
Rankings Click arrows to view the next taller/shorter buildings
Global Ranking #149 Tallest in the World
Regional Ranking #21 Tallest in North America
National Ranking #21 Tallest in United States
City Ranking #5 Tallest in Chicago

Companies Involved

• Current Tishman Speyer Properties
• Past AT&T
Developer Stein & Company
Design Skidmore, Owings & Merrill LLP
Structural Engineer
Design Skidmore, Owings & Merrill LLP
Project Manager Tishman Speyer Properties
Main Contractor Blount Brothers; Mayfair Construction
Other Consultant
• Wind Alan G. Davenport Wind Engineering Group
Material Supplier
• Elevator Otis Elevator Company
• Fire Proofing Grace Construction Products

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