General ConstructionLoopPermit Issued

Office Renovation at 123 N Wacker Dr, Loop

123 N WACKER DR, Loop

1

What was permitted

Significant interior alterations are underway for existing office spaces across three floors at 123 N Wacker Dr in Chicago's Loop neighborhood. This extensive project involves demolition, the construction of new partitions, and upgrades to mechanical, electrical, and plumbing systems.

This renovation project, with an estimated cost of $5,150,000, was issued a permit on May 12, 2026, and is currently active. The work is being managed by 1A Construction and involves electrical work by SHAMROCK ELECTRIC CO.INC, with no anticipated changes to the building's business occupancy.

Homeowners and property owners in the Loop can expect to see substantial commercial construction activity with this multi-million dollar office renovation.

2

What it cost

$5,150,000reported on this filing

Issued

May 12, 2026

Expires

License

3

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Filed by SHAMROCK ELECTRIC CO.INC · 8 permits across 4 areas

View the official permit record

Tracking number, work description, cost, and dates

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Tracking Number101082693
Work Permit #
Job Filing Number
Work Type
StatusACTIVE
Job DescriptionSELF CERT 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING OFFICE SPACE ON FLOORS 28,29 AND 30. WORK TO INCLUDE DEMO, NEW PARTITIONS, MECHANICAL, ELECTRICAL AND PLUMBING AS PER PLANS. 1A CONSTRUCTION. NO CHANGE TO B-BUSINESS OCCUPANCY.
Floor / Unit
Estimated Cost$5,150,000
ApprovedMay 11, 2026
IssuedMay 12, 2026
Expires
BBL
BIN

Property Owner

MW49 123 N WACKER LLC

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office renovationinterior alterationLoopChicagocommercial constructionmechanicalelectricalplumbing