Outside view of One South Wacker

Right between the river and The Loop and blocks away from all major commuting hubs, One South Wacker balances the prestige of a vibrant Chicago neighborhood, with the convenience of one of the most coveted addresses in the city.

And with a significant new ownership and investment plan by 601W Companies-Chicago’s largest Landlord, responsible for the repositioning of The Old Post Office, Aon Center and Prudential Plaza, the implementation of a creative, decisive, and sophisticated overhaul and major renovation of One South Wacker has begun.

Check back in to stay on top of the changes.

Managed by