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The Singular Most Unique Site in the Nation

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The Spirit Lives On

The Old Chicago Post Office was originally completed in 1921, but underwent a monumental expansion in 1932 to meet Chicago's unprecedented postal needs. The meteoric rise of the mail-order industry, spearheaded by the Chicago-based Montgomery Ward and Sears catalogs, transformed the city into the distribution center of the nation nearly overnight. In its postal heyday, the property was the largest of its kind in the world, capable of shuttling an astonishing 19 million pieces of mail daily. Though a lot has changed here since that time, that same spirit of raw ambition will live on in these walls for years to come.
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A Grand Transformation
After sitting vacant for nearly two decades, The Old Post Office has just completed an $800 million renovation, the largest historic redevelopment in the country. Today, the property boasts over 2.5M SF of stunning multi-use office and event space, and is poised to once again become the central hub of Chicago's business community.
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A Grand Transformation
After sitting vacant for nearly two decades, The Old Post Office has just completed an $800 million renovation, the largest historic redevelopment in the country. Today, the property boasts over 2.5M SF of stunning multi-use office and event space, and is poised to once again become the central hub of Chicago's business community.
The Old Post Office daytime view
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Evolving Into Tomorrow
The next chapter of The Old Post Office has only begun. As thousands of tenants settle into their new workspaces, plans are underway to bring even more energy to the west side of the Chicago River with a 3.5-acre urban rooftop oasis—the largest of its kind in the city—and a food hall delivering an exciting array of dining options to tenants and visitors alike.
The Old Post Office aerial view
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Evolving Into Tomorrow
The next chapter of The Old Post Office has only begun. As thousands of tenants settle into their new workspaces, plans are underway to bring even more energy to the west side of the Chicago River with a 3.5-acre urban rooftop oasis—the largest of its kind in the city—and a food hall delivering an exciting array of dining options to tenants and visitors alike.
The Old Post Office aerial view

Building Amenities

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Grand Hall
Let’s eat! From coffee to lunch, The Grand Hall will have what you’re looking for. Mix it up with multiple vendors onsite, and keep your appetite satisfied all day long. Stay tuned for updates on The Grand Hall’s official opening!
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Walgreens
Coming Soon!
Accessibility
Accessibility
Entrance into the Van Buren historic lobby is ADA compliant. There is a wheelchair accessible ramp at the NW corner of the building.
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Hours of Operation
The Old Post Office is accessible 24/7 via the 433 W. Van Buren Lobby.
The West and South Lobbies will be staffed M–F from 7:00 a.m. to 6:00 p.m. Outside of these times, the entrances will be locked.
Normal business hours at The Old Post Office are M–F from 7:00 a.m. to 6:00 p.m. Outside of these hours, the elevators will switch to access control mode and a keycard will be required to access floors.
Contact
Contact
Office of the Building : 312-481-7900
24 Hour Security Communications Center: 312- 548-7545
Transit
Transit
Metra
3-minute walk to Union Station
More Info

CTA "L" Trains
Brown, Orange, Pink, and Purple Line at LaSalle / Van Buren
Blue Line at Clinton
More Info

Bus Lines More Info

In
The
News

The Old Post Office aerial view
LEASING 8/19/19
Uber confirms it’s moving to massive space in The Old Post Office