Angelo, Gordon & Co.

Loop's Citadel Center getting $100 million-plus upgrade

Loop's Citadel Center getting $100 million-plus upgrade

The Citadel Center in the Loop is getting a $100 million-plus upgrade, a sign that even Chicago’s most prestigious office buildings must adapt to the fast-changing preferences of tenants.

Owners of the 37-story tower at 131 S. Dearborn St., said they are in the process of adding a rooftop deck, fitness center, lounge and 180-seat conference center. The building refresh, which also will include a redesigned lobby, comes just 15 years after the Citadel Center opened.

Major renovations are a sign that even the city’s highest-rent towers can’t stand pat amid competition from new skyscrapers and older-generation buildings whose owners are pouring money into top-notch...