645 N Michigan Ave
645 N Michigan Ave · Chicago, IL, 60611
Active renovation across multiple office suites
ACTIVE
PERMIT SET
RENOVATION
Largest permit
$223K
Window
May 7, 2026
Permits
2
Parties
9
Largest single reported permit cost — not a summed project total. Individual permit values can overlap in scope.
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Activity
How much relevant permit activity is on this site.
36
/ 100
Medium
Why this score:
Recent permit activity
Related permit history
Major construction activity
Active permits on 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 2 permits on this record| Permit | Description | Status | Contractor | ||
|---|---|---|---|---|---|
101081306 Renovation | INTERIOR BUILD-OUT FOR A SPECULATIVE OFFICE SUITE IN SUITE 540. THIS IS A BUSINESS USE IN AN EXISTING BUSINESS USE SPACE. THE PROJECT IS LOCATED IN AN EXISTING HIGH-RISE BUILDING AND IS FULLY SPRNKLERED AND HAS A FULL FIRE ALARM SYSTEM. | APR 20, 2026 | Active | $190,133 | Plan North Construction Services LLC |
101079902 Renovation | SELF-CERT 2019 CBRC: INTERIOR BUILD-OUT FOR A SPECULATIVE OFFICE SUITE IN SUITE 543. THIS IS A BUSINESS USE IN AN EXISTING BUSINESS USE SPACE. THE PROJECT IS LOCATED IN AN EXISTING HIGH-RISE BUILDING AND IS FULLY SPRNKLERED AND HAS A FULL FIRE ALARM SYSTEM. | MAR 25, 2026 | Active | $222,718 | Plan North Construction Services LLC |
Permit values are as reported at filing and may be revised on amendment. Individual permits can overlap in physical scope.
Why this project matters
SCOPE
Work across 3 office suites (active)
Suite IDs named in permit descriptions
ACTIVITY
2 major construction permits on site
CONTRACTOR
Plan North Construction Services LLC is the linked general contractor
Named on 2 permits for this site
COST
$223K largest permit, renovation
Max reported cost; not a summed project total
Key parties
General Contractor
Plan North Construction Services LLC(847) 909-3487
Electrical
Current Communications(708) 786-3400
Mechanical
Environment Mechanical Services(708) 345-1555
Plumbing
A Plus Plumbing(847) 891-7103
Owner
Jeffrey FeilNo contact on file
Architect
Bellis Todd LNo contact on file
3 more parties on this project
Location
1 site · Chicago
Sources: City of Chicago Dept. of Buildings permit feed · Cook County Assessor parcel records
Source Chicago Building Permits · Last calculated Sep 8, 2026