Thompson Center Transformation Accelerates as New Glass Exterior Emerges in The Loop

By Socialhood News · Il/Chicago/The Loop · December 1, 2025

Construction progress on the historic Thompson Center renovation is becoming increasingly visible to Loop pedestrians and commuters as the building's sleek new glass exterior takes shape. The ambitious project, led by Prime Group with plans to sell the completed building to Google, is moving forward with Google expected to begin moving employees into the space next year.

The high-profile renovation is drawing significant attention as one of Chicago's most watched real estate developments. Located at 100 W. Randolph St. in the heart of the Loop, the ultrawide structure designed by renowned architect Helmut Jahn sits on approximately three acres and connects directly to most CTA train lines. Recent weeks have revealed rows of glass panels along the Lake Street side, offering the best public glimpse yet of how the 17-story structure will appear when completed. The new design replaces the former salmon and light blue exterior color scheme with a more transparent, glassy appearance that modernizes this iconic landmark while preserving its distinctive silhouette. Loop residents and visitors are encouraged to witness this historic transformation firsthand as it continues to unfold at the crossroads of downtown.

Sources:
1. https://chicagoyimby.com/2025/09/google-glass-progress-continues-at-the-thompson-center.html
2. https://www.costar.com/article/132149189/googles-high-profile-renovation-of-iconic-chicago-structure-gives-new-look-to-heart-of-city