Chicago Federal Building
A domed federal complex occupying an entire Chicago block was demolished for Mies van der Rohe's new civic plaza.
Quick facts
- Existence state
- Officially Gone
- Peak stage
- general availability
- Research confidence
- high
- Last verified
What it was
Henry Ives Cobb's monumental federal courthouse, post office and office building in Chicago's Loop.
The Beaux-Arts complex centred on a large dome and served federal courts, postal operations and government offices for six decades.
Existence timeline
Federal work starts on the block-sized Chicago complex.
Courts, post office and offices enter normal public service.
The government prepares a new federal centre for the Loop.
The domed complex is vacated and dismantled.
Its site is cleared for the modern federal plaza.
Why it ended
The federal government replaced the ageing complex with a modernist centre designed by Mies van der Rohe. Demolition was completed in 1965.
Last confirmed trace
Historic photographs, plans, court records and architectural fragments preserve the building.
What it left behind
The replacement placed two radically different visions of civic monumentality on the same site within one lifetime.
How we classified it
The archive unit reached normal public release or operation and is no longer obtainable in its original public form.
Verified normal public availability maps to 100 under Arrival Score V1.
Sources & verification
Last reviewed 2026-08-01. Sources are linked so readers can inspect the evidence directly.