Comcast Center

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Height: Occupied
266.7 m / 875 ft
Height: To Tip
296.7 m / 974 ft
Height: Architectural
296.7 m / 974 ft
Comcast Center Outline
Floors Above Ground
Floors Below Ground
# of Elevators
Tower GFA
130,064 m² / 1,399,997 ft²
# of Parking Spaces


Official Name Comcast Center
Structure Type Building
Status Completed
Country United States
City Philadelphia
Street Address & Map 1701 John F Kennedy Blvd
Postal Code 19103
Building Function office
Structural Material composite
  • Core: Reinforced Concrete
  • Columns: Steel
  • Floor Spanning: Steel
Construction Start 2005
Completion 2008
Rankings Click arrows to view the next taller/shorter buildings
Global Ranking #192 Tallest in the World
Regional Ranking #30 Tallest in North America
National Ranking #28 Tallest in United States
City Ranking #2 Tallest in Philadelphia

Companies Involved

Owner Comcast Corporation
Developer Liberty Property Trust
Design Robert A.M. Stern Architects
Architect of Record Kendall / Heaton Associates
Structural Engineer
Design Thornton Tomasetti
MEP Engineer
Design Paul H. Yeomans, Inc.
Main Contractor LF Driscoll
Other Consultant
Façade Enclos Corp.
• LEED Atelier Ten
• Vertical Transportation thyssenkrupp
• Wind Alan G. Davenport Wind Engineering Group; RWDI

About Comcast Center

Comcast Center is the new headquarters for the Comcast Corporation, with typical floor plates ranging between 2,140 and 2,600 square meters (23,000 and 28,000 square feet). Taking the form of a faceted obelisk, the tower is clad in silvery high-performance glass with ultra-clear, low-iron glass at the building’s corners and crown. The Comcast Center and its south-facing, half-acre plaza straddles the underground tracks and concourse of Suburban Station —Philadelphia’s primary commuter rail gateway.

A 110-foot-high, light-flooded public winter garden connects the concourse with its shops and food hall to the tower and plaza above. The winter garden features a double-skin glass curtain wall with sunscreens and louvers which optimize daylight and views while modulating daily and seasonal thermal performance. Radiant heating, thermal extraction, and displacement ventilation combine to provide exceptional energy performance for this civic-scaled space. Three 3-story “sky atria” in the lower portion of the tower’s south façade overlook the plaza and provide tenants with unique and identifiable homes. The building is expected to receive LEED-CS Certification.

CTBUH Initiatives

CTBUH Study Examines Tallest Buildings with Dampers
22 Aug 2018 – CTBUH Research

2018 Tall Building Predictions
17 Jan 2018 – CTBUH News

CTBUH Releases Tallest Buildings Completed in 2008
Dec 2008 – CTBUH Journal Paper


Efficiently Sublime: The Tall Building in the Modern City
30 May 2018 – Serge Nalbantian, Liberty Property Trust; Meghan McDermott, Robert A.M. Stern Architects

The Space Between: Urban Spaces Surrounding Tall Buildings
18 Oct 2016 – James Parakh, City of Toronto Planning Department

Research Papers

The Space Between: Urban Spaces Surrounding Tall Buildings
17 Oct 2016 – Cities to Megacities: Shaping Dense Vertical Urbanism

Tallest Buildings Completed in 2008
Dec 2008 – CTBUH Journal, 2009 Issue I

CTBUH Awards

10 Year Award 2018 Award of Excellence
CTBUH Awards 2018

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