ISACS Classroom

The ISACS Classroom is in the 55 W. Wacker Building, Suite 702 on the 7th Floor.

There are two entrances to the 55 W. Wacker building:

Entrance 1: On Wacker between Dearborn & Clark

Entrance 2: On Dearborn between Lake & Wacker

Driving & Parking

Parking downtown is expensive. Some garages offer discounted daily rates if you arrive and depart by certain times (usually in by 9 a.m. and out by 6 p.m.) For a helpful parking map, visit chicagoparkingmap.com. Additionally, less expensive parking may be available by using parking apps such as spothero or parkwhiz prior to your arrival. Your spot is guaranteed, and you will receive directions to your parking location.

Nearby Parking Garages

181 N. Clark St.

Map → | Entrances on Dearborn St. (one way going north—access Dearborn by heading east on Washington Street) and an entrance on Lake Street (one way going east).

Walking Directions → | Walk to the ISACS office by exiting the parking structure on Dearborn and turning right. Walk approximately 2 blocks north on Dearborn St. to Wacker Drive. Enter the 55 West Wacker Building and take the elevators to the 7th floor.

181 N. Dearborn St. 

Map → | Entrances on Lake St. (one way going east) and on Clark St. (one way going south via Wacker Dr.)

Walking Directions → | Walk to the ISACS office by exiting the parking structure on Clark St. and right. Walk 2 ½ blocks north to Wacker Dr. and turn right. Walk east on Wacker Dr. <1 block. Enter the 55 West Wacker Building and take the elevators to the 7th floor.

CTA (El/Train)

Chicago's CTA system offers a safe, reliable, affordable, and fast way to get downtown.

Cost: $2.50 each way ($5 from O'Hare → Downtown)
You may wish to purchase a pass or reloadable Ventra card for your trip.

 Beginning January 5, 2026, the State/Lake CTA Station will be closed for construction through 2029.

  • If taking the Orange Line from Midway, please exit at Clark/Lake.
  • The Blue Line from O'Hare will not be impacted.

We recommend using the links on this page or checking Google Maps for the most up-to-date directions when planning your visit to ISACS.

Directions: Airport → ISACS

Midway (MDW) → ISACS

O'Hare (ORD) → ISACS