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Comcast Center

Coordinates:39°57′17″N75°10′06″W/ 39.9547°N 75.1683°W/39.9547; -75.1683
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This article is about the building at 1701 John F. Kennedy Boulevard. For the building at 1800 Arch Street, seeComcast Technology Center.For other uses, seeComcast Center (disambiguation).

Comcast Center
A view from the bottom of the Comcast Center
Comcast Center is located in Philadelphia
Comcast Center
Location within Philadelphia
Comcast Center is located in Pennsylvania
Comcast Center
Comcast Center (Pennsylvania)
Comcast Center is located in the United States
Comcast Center
Comcast Center (the United States)
Former namesOne Pennsylvania Plaza
Record height
Tallest inPennsylvaniafrom 2008 to 2017[I]
Preceded byLiberty Place
Surpassed byComcast Technology Center
General information
TypeCommercial offices
Location1701 John F. Kennedy Blvd.
Philadelphia,Pennsylvania19103
U.S.
Coordinates39°57′17″N75°10′06″W/ 39.9547°N 75.1683°W/39.9547; -75.1683
Construction started2005
Completed2008
CostUS$540 million
OwnerLiberty/Commerz 1701 JFK Boulevard L.P.
ManagementHill International[1]
Height
Antenna spire296.7 m (973 ft)
Technical details
Floor count58
3 below ground
Floor area1,399,997 sq ft (130,064.0 m2)
Lifts/elevators35
Design and construction
Architect(s)Robert A.M. Stern Architects
DeveloperLiberty Property Trust
Structural engineerThornton Tomasetti
Main contractorL. F. Driscoll Company
Website
comcastcentercampus
References
[2][3][4][5]

Comcast Center,also known as theComcast Tower,is askyscraperat 1701 John F. Kennedy Boulevard inCenter City Philadelphia.The 58-story, 297-meter (974 ft) tower is thesecond-tallest building in Philadelphiaand in theU.S. stateofPennsylvania,and the31st-tallest building in the United States.Originally called One Pennsylvania Plaza when plans for the building were announced in 2001, the Comcast Center went through two redesigns before construction began in 2005. Comcast Center was designed byRobert A.M. Stern ArchitectsforLiberty Property Trust.

In early 2005, the final redesign and its new name—the Comcast Center—were unveiled. The building is named after its lead tenant, cable companyComcast,which makes the skyscraper its corporate headquarters.[6]Leasing 1,094,212 square feet (101,656 m2), Comcast takes up 89 percent of the building. The building features retail and restaurant space and a connection to the nearbySuburban Station.In Comcast Center's lobby is theComcast Experience,which is a 2,000-square-foot (190 m2) high-definitionLEDscreen that has become a tourist attraction. Designed to beenvironmentally friendly,the skyscraper is the tallestLeadership in Energy and Environmental Design (LEED)certified building in Philadelphia.[7][8]

History

[edit]

Planning (1999–2004)

[edit]

In 1999, class-A office vacancy in the city was at 6.6%, leading developerWillard Rouseto envision a new tower. Eventually the developer settled on the location where he constructed this building, a 2-acre (8,100 m2), $288 per square-foot parcel owned by Equitable Life Assurance Co.[9]In 2000, the architect andDriehaus PrizewinnerRobert A. M. Sternbegan working on a design for a skyscraper being planned byLiberty Property TrustinPhiladelphia.In 2001, Liberty Property Trust announced its plan to build the 52-storyOne Pennsylvania Plaza inCenter City.Anticipated US$400 million, One Pennsylvania Plaza was to be 750 ft (230 m) and made ofkasota stonesimilar to thePhiladelphia Museum of Art.[10][11][12]The site for the future skyscraper was situated at 17th Street andJohn F. Kennedy Boulevard,a site occupied by a building that housed theDefender Association of Philadelphiaand a parking lot.[13]Demolition of the building began in 2002 and ended in 2003.[11]

Cable companyComcasthad been looking for possible new headquarters space in anticipation of the end of its lease inCentre Squarein 2006. Comcast was looking for more than 400,000 square feet (37,000 m2) of office space and developers were actively courting the company for their developments. Comcast was the only employer in the city with major expansion plans at the time. Comcast was considering staying in Centre Square, while also contemplating moving their headquarters to the newCira Centrebuilding or OnePennsylvania Plaza.[12]Comcast was spread out over 10 floors in two buildings at Centre Square and wanted space on contiguous floors.[14]In January 2004, Liberty Property Trust unveiled a redesign for the building. The redesign turned One Pennsylvania Plaza into a 60-story, 962 feet (293 m) tower, making it the tallest building in the city at the time.[15]In the redesign, the kasota stone was changed to a lighter granite and a short pyramidal roof was added.[11]The redesign was a result of discussions that had begun in 2003 with Comcast about moving into the tower.[16]

On January 3, 2004, Liberty Property Trust signed a 15½-year lease with Comcast and a construction contract with L.F. Driscoll Co. Liberty Property Trust also unveiled another redesign of the building and its new name, the Comcast Center. The now 975-foot (297 m), 58-story Comcast Center would no longer have a pyramid top and would have a complete glassfacade.[6][11]The architectural model was created byRichard Tenguerian.[17]

Controversy

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Liberty Property Trust hoped to get the One Pennsylvania Plaza site designated a Keystone Opportunity Improvement Zone (KOZ). KOZ designation was intended to encourage development in poor,blightedareas by exempting the tenants of the building from all state and local taxes. Designating One Pennsylvania Plaza a KOZ was supported by then Pennsylvania GovernorEd Rendell,who said it was important to keep corporations within the city. At the time, many of Philadelphia's big employers' leases, including Comcast's, were due to expire, and the employers were considering the possibility of moving out of the city and state. Rendell also said allowing Comcast to enlarge its headquarters by moving into One Pennsylvania Plaza could attract other corporate headquarters to the city. However, other Center City building owners, including Comcast's landlord at Centre Square, HRPT Properties Trust, were opposed to the plan. They said giving the tower the KOZ designation would give it an unfair advantage because Liberty Property Trust could charge above-market rents since the tax breaks would offset the cost for tenants. The group believed tenants attracted to One Pennsylvania Plaza because of the tax breaks would cause more vacancies in other Center City skyscrapers, rather than attracting more business to blighted areas as intended under the law. In early 2004, Center City had a vacancy rate of 12.8%.[16][18]

Both sides of the issue hired law firms, lobbyists, and business associates to promote their positions to city and state officials. A report by the Center City District said if both One Pennsylvania Plaza and the Cira Centre, another skyscraper in the KOZ controversy, were filled by corporations moving from other Center City office towers, the city could lose US$153 million by 2018.[16][19]A report released by the group of building owners opposed to KOZ says the two buildings could cost the city almost US$91 million a year.[20]In contrast, a report issued by a consulting company hired by Liberty Property Trust said that a KOZ designation for the skyscraper could generate US$27 million for the city. Critics of the KOZ designation also claimed that close relationships between Liberty Property Trust and Comcast and the Rendell administration were inappropriately influencing the governor's position on the issue. When Rendell was mayor of Philadelphia,David L. Cohen,a Comcast executive vice president, was Rendell's chief of staff, and William P. Hankowsky, Liberty Property Trust's chief executive, was director of Philadelphia's development agency. Rendell dismissed the claims, saying "Every building owner in town was a contributor to me."[16]

Chances the bill would be passed ended in November 2004 whenHouseRepublicansin thePennsylvania General Assemblydecided not to bring the bill to a vote. Later that year, Governor Rendell released US$30 million from the Redevelopment Assistance Budget to Liberty Property Trust. Through the state's Department of Economic and Community Development, Comcast received US$12.75 million that included a US$4-million opportunity grant, US$6.75 million in job-creation tax credits, and US$2 million in job training assistance. Despite the failure to gain KOZ status, the project received US$42.75 million in financial incentives from the state.[21]

Construction (2005–2008)

[edit]
Comcast Center under construction, 2007

The officialgroundbreakingceremony was on March 31, 2005. The ceremony, which was held at night, featured a light show coordinated with a piece of music entitled "Elevation". The song was composed specifically for the event byCurtis Institute of Musicgraduate Steven Hackman and recorded by the Curtis Institute of Music Orchestra.[22]The groundbreaking also featuredKodo,theGermantown High Schooldrumline,and a 6-foot-tall (1.8 m) ice sculpture of the Comcast Center.[11][23]

While under construction, in March 2006, Liberty Property Trust negotiated with Philadelphia's Plumbers Union Local 690, which had issues with the building'swaterless urinals.The waterless urinals were part of the plan to make the Comcast Center an environmentally friendly building because they would save an extra 1.6 million US gallons (6,100 m3) of water a year. The plumbers union opposed the waterless urinals, claiming they were unsanitary and would provide less work for the plumbers. Philadelphia's Plumbing Advisory Board approved the waterless urinals on April 5 after a compromise, which stated that the building's owners and city officials would monitor the performance of the waterless urinals, was reached. Piping that would allow water to flow to the urinals in case they needed to be converted was installed in the Comcast Center, which Liberty Property Trust says was always part of the building's plan.[24][25]

Comcast Center's concrete core

A week later, on April 13, Liberty Property Trust sold an 80-percent interest in the Comcast Center to German real estate firm CommerzLeasing & Immobilien AG, a subsidiary ofCommerzbank AG.The deal completed Liberty Property Trust's planned recapitalization of the anticipated cost of the building, and the value of the joint venture, called Liberty/Commerz 1701 JFK Boulevard L.P., included mortgage debt and equity.[26]

On June 18, 2007, the Comcast Center wastopped out.The ceremony, which was held in the building's future plaza, featured the raising of a steel beam to the skyscraper's highest point. The beam was signed by workers and guests and as it was raised, on account of tradition, an American flag and a tree sat on the beam. Also sitting on the beam was a statue of Philadelphia-founderWilliam Penn.The statue was there to counteract the 1980s"curse" of Billy Penn,which prevented Philadelphia's sports teams from winning a championship following the construction of buildings taller than the statue of William Penn on top of the 548-foot (167 m)Philadelphia City Hall.[27][28][29]The 25-inch (64 cm) statue of William Penn remained on the beam until it was stolen. The statue was replaced and the "curse" ended when thePhiladelphia Phillieswon the2008 World Series.[30]

The Comcast Center officially opened on June 6, 2008.[31][32][33]A study sponsored by Comcast and Liberty Property Trust said the construction of the Comcast Center created 17,200 jobs and generated US$2 billion of economic activity for Pennsylvania.[34]Despite opposition by other building owners to construction of the Comcast Center, by the time most space in the Comcast Center had been leased vacancy rates in Center City offices were falling and rents were rising. HRPT Properties Trust had leased 70 percent of the space Comcast had vacated by 2007. The predictions by opponents did not occur mainly because Comcast ended up leasing 89 percent of the building and the offices for the Comcast Center's second-largest tenant, Citizens Bank of Pennsylvania, were new to the city.[35]

Building

[edit]
Comcast Center as seen fromOne Liberty Observation Deck
The Comcast Center can be viewed from some Philadelphia suburbs, such as this view fromCheltenham Township

The Comcast Center has 58 floors, 56 of which are usable. The structure of the Comcast Center comprises a central concrete core with steel-framed floors.[7][31][36][37]

Form and facade

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The building's exterior features a glasscurtain wallmade of lightly tinted, non-reflectivelow-emissivityglass.[7][31][36][37]The tower tapers inward towards the top and features two cutouts near the top of the building on the north and south sides.[38]

The Comcast Center faces a half-acre public plaza. The plaza, designed byLucinda SandersofOLIN,sits over underground railroad tracks. It features a seasonal outdoor restaurant, Cafe Click, that is sheltered by a trellis. Between the cafe and the building entrance is a choreographed fountain designed byWet.[39]The tower's entrance is a 110 feet (34 m) tallwinter garden.The winter garden entrance directly connects to the underground concourse ofSuburban Station.The building also has a lobby entrance that leads to theArch Street Presbyterian Churchadjacent to the tower.[31][36][38]

The exterior lighting scheme of the building was designed by Quentin Thomas Associates, and consists primarily of white LEDs color-temperature matched to the fluorescent lights used by the interior. Along each floor, the corner spandrel panels feature upward and downward-facing 4,100K LEDs to create the appearance that the length of the building has been bottom-lit by spotlights. The only major consistently active color element can be found at the top of the tuned mass damper; a single row of color-changing LEDs that is programmed to commemorate special events. For example, the top would be colored pink forBreast Cancer Awareness Month.[40]

Mechanical features

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To prevent the tower from swaying too much in the wind, the Comcast Center contains a 300,000-US-gallon (1,100 m3) double-chambered concretetuned liquid column damper,the largest such damper in North America.[41]Receiving a goldLeadership in Energy and Environmental Design (LEED)rating in April 2009, the Comcast Center is the tallest LEED building in Philadelphia. The building was designed to use 40 percent less water than a typical office building, and the plaza was designed to reduce heat-island effect from the pavement by 70 percent. Reducing air conditioning and lighting costs, the low-emissivity glass curtain wall blocks 60 percent of heat while allowing 70 percent of the Sun's light inside.[7]

Interior

[edit]
People watching theComcast Experienceholiday show in 2008

The skyscraper has 1,238,000 square feet (115,000 m2) of rentable space, including 36,000 square feet (3,300 m2) of restaurant and retail space called The Market at the Comcast Center. 16,500 square feet (1,500 m2) of retail space is on the underground concourse while the rest is located on the street level. The building features high ceilings with some floors having a ceiling height of 13 feet (4 m). The lower floors on the south side of the building feature four three-story stackedatrias.The building also features a 500-seat concourse level dining court and an 87-space private underground parking garage.[31][36][37][42]ThyssenKruppprovided the building's 30 gearlesselevators,seven hydraulic elevators, and twoescalators.[43]The Comcast Center's winter garden entrance contains two works ofinstallation art:theComcast Experiencedisplay[44][45]andHumanity in Motion.[46]

Comcast ExperienceLED animation display

[edit]

TheComcast Experienceis a 25.4 feet (7.7 m) tall, 83.3 feet (25.4 m) wide, 2,000 square feet (190 m2) high-definitionLEDscreen situated on a wall in the winter garden. The screen is composed of 7.8 million, 4.66mm pitch pixels housed in 6,771 LED modules of the type used in theBarcoNX-4 panel.[44][45]The installation, designed and produced by Niles Creative Group, premiered on June 6, 2008, and runs eighteen hours each day. The content of the video includes panoramic views of Philadelphia historic sites, images of space, dancers, acrobats and actors moving around a background designed to mimic wood paneling of the walls of the lobby. Another part of the installation displays images of cranes and machinery forming the design of a clock that tells the correct time of day.[47]

TheComcast Experiencequickly became a popular tourist attraction, prompting city officials to add the Comcast Center to its tourism website.[47]BetweenThanksgiving2008 andNew Year's Day2009, a holiday video was included as part of the installation.[48]

Humanity in Motion statuary

[edit]

The second piece of art isJonathan Borofsky'sHumanity in Motion.[46]Located in the glass atrium of the winter garden,Humanity in Motionshows ten life-size human figures walking across ten horizontal poles positioned at different levels of the atrium. At ground level, looking up at the stainless steel figures, are two more figures shaped to look like a father and son.[46]

Tenants

[edit]
Comcast is the building's namesake and also the largest tenant.

Comcast is the skyscraper's largest tenant, leasing 1,094,212 square feet (101,656 m2), or 89 percent of the building. The second-largest tenant is Citizens Bank of Pennsylvania, which leases 56,000 square feet (5,200 m2) of office and retail space. Other tenants include the Judge Group, a staffing agency, which leases 6,427 square feet (600 m2).[49][50]

Comcast's office space was designed by Daroff Design + DDI Architects andGensler.Comcast's space is topped by a conference room floor with the executive offices on the four floors below it. Below that are more offices and then, on the 43rd and 44th floors, is Ralph's Cafe, a two-story cafeteria space named after the company founderRalph J. Roberts.Below the cafe is the training center called "Comcast University". The rest of the space is used for content and programing teams, customer service, Technology & Product teams, Finance and Legal. Theinterior designof the offices are designed with a variety of shape and color ranging from the open white space of the upper offices to the colorful walls of the training center. Other designs include a glass and stainless steel staircase that wraps around a four-story column of flat-screen monitors and connects the executive floors.[51]

The retail portion of the tower includes numerous shops and eateries. The shops and eateries include national and regional chains, and initially featured a restaurant called Table 31.[42]Table 31, which had a cafe on the plaza and a restaurant spread over three floors in the tower, was owned by Philadelphia restaurateurs and chefs Georges Perrier and Chris Scarduzio. The restaurant was named after a popular table at the former Perrier and Scarduzio establishment Brasserie Perrier.[39][52][53]Table 31 closed in 2013, amid a dispute among its owners, and was replaced by another upscale steakhouse, named "Chops".[54][55]

Reception

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Philadelphia Inquirerarchitecture criticInga Saffrondescribed the Comcast Center as "a respectable work of architecture" that was "dignified in its stance on the grid, generous in its relationship to the city, responsible in its treatment of the environment". She felt the tower's shape reminded her of a giantflash drive.[56]Saffron said the building excelled at the street level, praising the plaza, concourse, and its connection to Suburban Station.[38]In 2009, the Comcast Center was awarded theUrban Land InstituteAward for Excellence in the Americas category for the transformation of what was once mostly a vacant lot into a transit gateway.[57]

See also

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References

[edit]
  1. ^Buckley, Bruce (November–December 2007)."Comcast Center Tower Towering Over Philly".Constructor.Archived fromthe originalon August 28, 2008.RetrievedFebruary 18,2011.
  2. ^"Emporis building ID 102154".Emporis.Archived from the original on March 7, 2016.{{cite web}}:CS1 maint: unfit URL (link)
  3. ^Comcast CenteratGlass Steel and Stone(archived)
  4. ^"Comcast Center".SkyscraperPage.
  5. ^"Comcast Center - The Skyscraper Center".Council on Tall Buildings and Urban Habitat.Archived fromthe originalon June 29, 2013.
  6. ^abHolcomb, Henry J. (January 4, 2005). "Work to begin in 2 weeks on Comcast skyscraper in Philadelphia".The Philadelphia Inquirer.
  7. ^abcd"Comcast Center gets LEED certification".Philadelphia Business Journal.April 23, 2009.RetrievedAugust 25,2009.
  8. ^Taylor, Candace (May 29, 2009)."The Closing: Robert A.M. Stern".The Real Deal.RetrievedFebruary 1,2016.
  9. ^"Rouse vision complete in new tower",Biz Journals.May 12, 2008. Accessed June 12, 2011
  10. ^Peter Morris Dixon (ed.).Robert A. M. Stern, 1999-2003.New York, NY: Monacelli Press.
  11. ^abcdeMaule, R. Bradley."Comcast Center Timeline".Comcast Center.phillyskyline.RetrievedMarch 30,2009.
  12. ^abHolcomb, Henry J. (July 31, 2002). "Comcast Delays Decision on New Space for Philadelphia Headquarters".The Philadelphia Inquirer.
  13. ^Holcomb, Henry J. (October 25, 2001). "Philadelphia's Public Defenders Get New Home; Site Free for Development".The Philadelphia Inquirer.
  14. ^Holcomb, Henry J. (May 1, 2003). "Developers Compete to Build New Comcast Corp. Headquarters in Philadelphia".The Philadelphia Inquirer.
  15. ^Holcomb, Henry J. (January 22, 2004). "Liberty Property Trust Proposes Plan for Skyscraper in Philadelphia".The Philadelphia Inquirer.
  16. ^abcdPristin, Terry (February 18, 2004)."Downtown Philadelphia Roiled by Proposed Subsidy".The New York Times.Archived fromthe originalon January 31, 2013.RetrievedMarch 28,2009.
  17. ^Arkun, Aaron"Richard Tenguerian Creating a Miniature Universe Through Architectural Models"The Armenian Mirror-Spectator, 5 February 2021. Retrieved 12 January 2024.
  18. ^Kostelni, Natalie (December 19, 2003)."Battle brewing over KOZ".Philadelphia Business Journal.RetrievedMarch 28,2009.
  19. ^Holcomb, Henry J. (February 22, 2004). "Philadelphia Skyscraper Wars Could Have Lasting Impact on City".The Philadelphia Inquirer.
  20. ^Kostelni, Natalie (May 7, 2004)."Group releases another anti-KOZ report".Philadelphia Business Journal.RetrievedMarch 28,2009.
  21. ^Kostelni, Natalie (January 3, 2005)."Controversial skyscraper will be built in downtown Philadelphia".Philadelphia Business Journal.RetrievedMarch 28,2009.
  22. ^Steve Hackman conducts his original piece "Elevation",YouTube, stevehackman08.
  23. ^"Liberty Property conducts an over-the-top ground breaking for tower".Philadelphia Business Journal.April 1, 2005.RetrievedMarch 29,2009.[dead link]
  24. ^Garvin, Keith (March 29, 2006)."'No Flush' Urinal Controversy Could Sink Philly Skyscraper ".ABC News.RetrievedMarch 29,2009.
  25. ^"Waterless urinals a go for Comcast Center".Philadelphia Business Journal.April 5, 2006.RetrievedMarch 29,2009.
  26. ^Holcomb, Henry J. (April 14, 2006). "Liberty sells 80% of Comcast Center: The deal, with a German firm, values the new skyscraper at $523 million".The Philadelphia Inquirer.
  27. ^Holcomb, Henry J. (June 18, 2007)."Comcast Center topped off".The Philadelphia Inquirer.Archived fromthe originalon March 11, 2009.RetrievedMarch 29,2009.
  28. ^"Liberty Property Trust Celebrates Topping Off of Comcast Center".Business Wire.June 18, 2007.
  29. ^"About the Curse".The Curse William Penn.Phrustrated Phan Films.RetrievedMay 21,2009.
  30. ^Horan, Kevin (October 10, 2008)."William Penn atop Philly once again".MLB.RetrievedMarch 29,2009.
  31. ^abcdeLeonard, Jeanne (June 6, 2008)."Comcast Center Claims Its Place Atop the Philadelphia Skyline"(Press release). Liberty Property Trust.RetrievedMay 19,2009.
  32. ^"Quiet opening for city's new giant, Comcast Center wows workers as they slip in".The Philadelphia Inquirer:A01. December 22, 2007.
  33. ^"Comcast Center, Philadelphia, PA",Flickr. October 2009. Accessed June 11, 2011
  34. ^"Comcast Center construction generated $2B in activity, study says".Philadelphia Business Journal.June 6, 2008.RetrievedMarch 29,2009.
  35. ^Fernandez, Bob (June 19, 2007). "Office space in city rebounds".The Philadelphia Inquirer.
  36. ^abcd"Comcast Center Fact Sheet"(PDF).MLB.January 2004.RetrievedMarch 29,2009.
  37. ^abc"1701 John F Kennedy Blvd • Comcast Center".Liberty Property Trust. Archived fromthe originalon April 1, 2009.RetrievedMarch 29,2009.
  38. ^abcSaffron, Inga (May 30, 2008)."Comcast Center, Phila.'s tallest building, is clean-lined and dignified".The Philadelphia Inquirer.RetrievedMarch 29,2009.[dead link]
  39. ^abMaule, R. Bradley."14 August 07: Rollin' with Olin on the plaza".Comcast Center.phillyskyline.RetrievedMarch 30,2009.
  40. ^Maule, R. Bradley."16 April 08: Lights... camera..."Comcast Center.phillyskyline.RetrievedApril 12,2009.
  41. ^Avril, Tom (April 15, 2007). "Water to tame wind atop new skyscraper".The Philadelphia Inquirer.
  42. ^ab"Richard Branson training for space flight in Bucks".Philadelphia Business Journal.December 7, 2007.RetrievedMay 21,2009.
  43. ^"Elevators will scale the Comcast Center".Building Design & Construction.January 1, 2006.
  44. ^ab"Embracing Art, Architecture and Technology, TheComcast ExperienceDebuts at Philadelphia's Comcast Center, Highlighted by a 10-Million Pixel Barco NX-4 LED Installation ".Digital Signage Universe. Archived fromthe originalon January 16, 2010.RetrievedMarch 30,2009.
  45. ^abMorris, Christine (June 10, 2008)."Barco, Comcast and Liberty Property Trust unveil" The Comcast Experience "at Philadelphia's Comcast Center".Barco(Press release). Archived fromthe originalon July 16, 2011.RetrievedJuly 18,2010.
  46. ^abc"Humanity in Motion".Jonathan Borofsky.RetrievedApril 2,2009.
  47. ^abGanim, Sara (August 24, 2008)."LED wall is high-tech hit in Philadelphia".The Associated Press.RetrievedMarch 30,2009.[dead link]
  48. ^"Comcast & Liberty Property Trust Unveil A New Philadelphia".Comcast Corp.RetrievedMarch 30,2009.
  49. ^Kostelni, Natalie (October 25, 2005)."Comcast Center not just for Comcast anymore".Philadelphia Business Journal.RetrievedMarch 30,2009.
  50. ^"Judge Group opening office at Comcast Center".Philadelphia Business Journal.January 3, 2008.RetrievedMay 19,2009.
  51. ^Sullivan, C.C. (October 1, 2008)."Daroff and Gensler channel the lightness and clean lines of a Philadelphia tower into striking headquarters for Comcast".Interior Design.Archived fromthe originalon April 2, 2009.RetrievedMay 22,2009.
  52. ^Kostelni, Natalie (November 2, 2007)."Comcast Center nearly full".Philadelphia Business Journal.RetrievedMarch 30,2009.
  53. ^Kostelni, Natalie (April 22, 2008)."Le Bec-Fin owners' Comcast Center site to open May 18".Philadelphia Business Journal.RetrievedMarch 30,2009.
  54. ^"Table 31 to close".Philly.September 6, 2013.RetrievedApril 14,2016.
  55. ^"Chops replacing Table 31".Philly.November 18, 2013.RetrievedApril 14,2016.
  56. ^Gibbons, Kent.Philly Critic: Comcast Tower Looks Like ‘Giant Flash Drive’,Multichannel News,February 6, 2008
  57. ^Riggs, Trisha (April 24, 2009)."Winners and Finalists".Urban Land Institute.RetrievedMay 21,2009.
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Records
Preceded by Tallest building in Pennsylvania
297 metres (974 ft)
2008-2018 		Succeeded by
Preceded by Tallest building in Philadelphia
297 metres (974 ft)
2008-2018 		Succeeded by

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