1701 JFK Blvd Philadelphia: What’s Actually Inside the Comcast Central Tower?

1701 JFK Blvd Philadelphia: What’s Actually Inside the Comcast Central Tower?

You’ve probably seen it. If you’ve spent more than five minutes in Center City, it’s impossible to miss that soaring, metallic obelisk that basically defines the Philadelphia skyline now. But here’s the thing about 1701 JFK Blvd Philadelphia PA—most people just call it the Comcast Center and assume it’s just a bunch of cubicles and corporate suits.

That’s not quite the whole story.

When Robert A.M. Stern Architects designed this thing, they weren't just trying to build the tallest office building in the United States outside of New York and Chicago at the time. They were trying to create a "vertical town square." It's a massive, 1.25 million-square-foot ecosystem that sits right on top of Suburban Station. It’s also a place where a lot of Philly's tech-driven future is actually being coded, debated, and sold.


Why 1701 JFK Blvd is More Than Just a High-Rise

If you walk into the lobby, you aren't greeted by a security desk and a boring directory. Instead, you're hit with "The Comcast Experience." This is one of the largest high-resolution LED displays in the world. It’s nearly 2,000 square feet of digital art that makes you feel like you're standing in a forest or watching actors perform gravity-defying stunts.

It’s a flex. Let’s be real.

But beyond the flashy screen, the building’s location is its secret weapon. Being at 1701 JFK Blvd means you have direct underground access to SEPTA’s regional rail. You can literally take a train from the suburbs, walk through a tunnel, and be at your desk without ever feeling a raindrop or a snowflake. For a city like Philly, that kind of integration is huge.

The Engineering Feat You Can't See

Most people look at the glass and steel, but the coolest part of 1701 JFK Blvd Philadelphia PA is actually at the very top. Inside the "crown" of the building, there's a 300,000-gallon double-column tuned liquid damper.

Basically? It's a giant water tank.

High-rise buildings sway. That’s just physics. But to keep employees from getting seasick on the 50th floor during a windstorm, this water oscillates in the opposite direction of the building's movement. It’s an invisible counterweight that keeps the structure stable.


The Business Ecosystem Inside the Glass

Comcast is obviously the anchor tenant, but the building operates as the nerve center for a global media empire. This isn't just about cable TV anymore. We're talking about the headquarters for Xfinity, NBCUniversal, and Sky.

  • The Winter Garden: This is the massive public space at the base. It’s flooded with natural light and serves as a transition point between the street and the offices.
  • The Market: Downstairs, you’ve got a food court that is way better than your average mall setup. It’s a mix of local Philly staples and high-end quick bites.
  • Sustainability: The tower was the tallest LEED Gold certified building in the country when it finished. It uses about 40% less water than a typical office building.

Honestly, the building changed the gravity of the city. Before it went up in 2008, the "center" of business in Philly felt a bit more fragmented. Now, everything pulls toward the JFK Boulevard corridor. It’s the undisputed hub.

What Most People Get Wrong About the Address

There’s often a bit of confusion between 1701 JFK Blvd and its younger, taller sibling next door—the Comcast Technology Center at 1800 Arch Street.

1701 is the original. The "classic" one.

While the newer tower houses the Four Seasons and more R&D labs, 1701 remains the operational heart. It's where the executive decisions happen. If you’re visiting for a meeting or a job interview, make sure you’re headed to the right one. They are connected, but the security protocols and entrance points are totally different.

The security at 1701 JFK Blvd Philadelphia PA is tight. You aren't getting past the turnstiles without a badge or a pre-registered guest pass. However, the public areas are genuinely public. You can sit in the Winter Garden, grab a coffee, and watch the LED show without anyone bothering you.

Real Talk on the Commute

If you’re planning to visit or work here, don’t drive. Just don't.

Parking in this part of Center City is a nightmare and will easily cost you $40 or more for a day. The building is designed for transit. Between the Broad Street Line, the Market-Frankford Line, and the Regional Rail, there are about a dozen ways to get there that don't involve the Schuylkill Expressway.

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The Cultural Impact on Philadelphia

For a long time, Philadelphia had this "Gentleman’s Agreement" that no building could be taller than the hat on the William Penn statue atop City Hall. That ended in the 80s, but 1701 JFK Blvd was the first building that really felt like it was launching Philly into a new era.

It wasn't just a building; it was a statement that Philly could compete with NYC or DC for corporate talent.

If you find yourself in the basement—which is actually called the Concourse—you’re in one of the busiest pedestrian hubs in the city. It connects the Comcast Center to the rest of the suburban station network.

  1. Termini Bros Bakery: If you want an authentic Philly cannoli, you don't have to go to South Philly. There's a spot right here.
  2. The Food Hall: It’s loud, it’s fast, and it’s packed at 12:15 PM.
  3. The Connection: You can walk underground all the way to 15th street and beyond. It’s a lifesaver in February.

Actionable Tips for Visiting 1701 JFK Blvd

If you’re headed to 1701 JFK Blvd Philadelphia PA for the first time, keep these specific points in mind to avoid looking like a lost tourist:

  • The LED Show Times: The "Comcast Experience" video wall usually runs on the hour. If you want to see the full cinematic presentations, aim to be in the lobby at the top of the hour.
  • Guest Registration: If you have a meeting, ensure your contact has entered you into the "Visitor Management System." You’ll need a valid photo ID (driver's license or passport) to get through. No ID, no entry. Period.
  • Public Restrooms: They are located on the concourse level. Don't bother looking for them on the main lobby level; they are tucked away downstairs near the food court.
  • Outdoor Space: In the summer, the outdoor plaza has "The Table"—a massive communal wooden table that’s great for people-watching or eating a quick lunch.

The Comcast Center isn't just a monument to a cable company. It’s a functional, massive piece of infrastructure that connects the city's transit, its economy, and its public life. Whether you're there to see the digital art or to pitch a new startup, it’s the literal center of gravity for 21st-century Philadelphia.

When you leave the building, walk a block south to Love Park. It gives you the best perspective of the tower's sheer scale against the rest of the city. You’ll see exactly why this address became the most important plot of land in the Philadelphia business district.