Chicago’s largest office landlord has defaulted on the loan for a Wacker Drive tower while seeing a loan extension for debt on one of the city’s tallest skyscrapers, the latest evidence of a challenging lending market and falling property values in the sector throughout the country.
Landlord 601W faces pair of Chicago office debt challenges
New York-based landlord defaults on loan, seeks extension for 83-story Aon Center
By Ryan Ori
CoStar NewsJune 25, 2026 | 7:15 P.M.
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IN THIS ARTICLE
- Properties
- Aon Center
200 Randolph St, Chicago, IL
- One South Wacker
1 Wacker Dr, Chicago, IL
- Companies
- The 601W Companies
Real Estate