Willis Tower

A state-of-the-art 21st Century facility
Wonder what it takes to keep a building the size of Willis Tower up and running on a daily basis? It takes great people and an even better infrastructure. With eight power feeds, the tallest building in America has never had a critical power failure in its history and more than 1,000 tons of condenser water is available for supplemental cooling. A recently installed cellular backbone from AT&T has enhanced service throughout the building, ensuring consistent and reliable cellular service throughout Willis Tower.

Forward-thinking, superior engineering and infrastructure
Willis Tower’s unparalleled infrastructure ensures companies can work fluidly and confidently. Redundant systems, remarkable comfort, and a mighty IT framework will impress those on your team who demand more from a Chicago loop commercial office space than just a view.

Other Facts:

  • Digitally controlled interior VAV system and a perimeter CAV system work together to provide individual control and an abundance of fresh air
  • 18,000 tons of cooling with the ability to move up to 1.25 CFM
  • 5-20 watts per square foot available
  • Two 2,100 KW diesel generators
  • Room for tenant generators
  • Ten telecommunication providers with high-capacity service on copper, “lit” fiber and “dark” fiber
Building Infrastructure

Building Infrastructure

Power up Eight ComEd electrical feeds come into the building from an on-site ComEd transmission station, served from two separate ComEd power generating plants.

Building Infrastructure

Plug in Fiber connectivity, multiple local exchange carries, and high-speed data access make connectivity fast and flexible.


Building Infrastructure

Get comfortable Air-conditioning and heating systems are robust and have capacity well in excess of industry standards.

Building Infrastructure

Take off A 104-car, smooth-gliding elevator system offers the fastest ride of any elevator system in Chicago, reaching speeds of 1,200 feet per minute.