CNA Center

Click an image to view larger version.


Height: Architectural 157.7 m / 517 ft
Height: Occupied 144.4 m / 474 ft
Height: To Tip 161.6 m / 530 ft
Floors Above Ground 35
Floors Below Ground 1
# of Elevators 20
Tower GFA 82,250 m² / 885,332 ft²
Development GFA 825,000 m² / 8,880,226 ft²


Official Name CNA Center
Other Names 151 North Franklin
Structure Type Building
Status Completed
Country United States
City Chicago
Street Address & Map 151 North Franklin Street
Postal Code 60606
Building Function office
Structural Material composite
  • Core: Reinforced Concrete
  • Columns: Steel
  • Floor Spanning: Steel
Energy Label LEED Gold BD+C: Core and Shell
Proposed 2013
Construction Start 2016
Completion 2018
Official Website 151 North Franklin

Companies Involved

Owner/Developer The John Buck Company
Master Planner John Ronan Architects
Design John Ronan Architects
Architect of Record Adamson Associates
Structural Engineer
Design Magnusson Klemencic Associates
MEP Engineer
Design Environmental Systems Design, Inc.
Main Contractor Lendlease Corporation
Other Consultant
• Landscape Wolff Landscape Architecture
• LEED Environmental Systems Design, Inc.
• Sustainability Environmental Systems Design, Inc.
• Vertical Transportation Jenkins & Huntington
Material Supplier
• Ceiling Newmat
• Cladding Crown Corr Inc.; Viracon
• Façade Maintenance Equipment CoxGomyl
• Interior Partition Bendheim
• Steel ArcelorMittal

Research Papers

The Future of Workplace in Vertical Cities: Hanging Gardens, Roof Terraces and Vertical Plazas
Mar 2020 – International Journal of High-Rise Buildings Volume 9 Number 1

To submit more information or donate images for this project, please use our submission portal.