307 N Michigan Ave
Interior alterations are underway for a 14th-floor office space, involving non-structural demolition, partition layout updates, and trade work. The project includes mechanical, electrical, and plumbing upgrades to support the interior office tenant build-out.
Largest single reported permit cost — not a summed project total. Individual permit values can overlap in scope.
Sign up to save projects and keep browsing past the free preview limit.
Activity
How much relevant permit activity is on this site.
Trade fit
How well this project matches each trade, from linked permits. Select a trade to filter parties & permits.
| Trade | Fit | Evidence |
|---|---|---|
| Medium | Major construction permits |
Permit ledger
All 1 permit on this record| Permit | Description | Status | Contractor | ||
|---|---|---|---|---|---|
101082990 New Construction | Interior renovation of a 14th-floor office space, including demolition, new partitions, and MEP updates with no structural work or change of use. | MAY 11, 2026 | Active | $950,000 | Knudsen Construction Inc |
Key parties
Sources: City of Chicago Dept. of Buildings permit feed · Cook County Assessor parcel records
Source Chicago Building Permits · Last calculated Sep 9, 2026
This site provides applications using data that has been modified for use from its original source, www.cityofchicago.org, the official website of the City of Chicago. The City of Chicago makes no claims as to the content, accuracy, timeliness, or completeness of any of the data provided at this site. The data provided at this site is subject to change at any time. It is understood that the data provided at this site is being used at one’s own risk.
Cook County Assessor property data shown on this site may be modified from its original source and is provided without warranty as to accuracy, completeness, or timeliness. The Cook County Assessor’s Office does not guarantee the accuracy of information derived from its records. Use of this data is at your own risk.