DATA DESK
Chicago construction, by the numbers.
3,108 building permits filed September 15, 2026 – October 14, 2026, with $792,939,550 in reported construction value. Computed straight from the city's public building-permit records — nothing estimated, nothing modeled.
FILED PERMITS
3,108
building permits filed in the last 30 days
REPORTED VALUE
$792,939,550
total reported construction value · 2,735 permits with a filed value
ROOFING MATCHES
501
168 strong · 333 possible roofing leads
DATA WINDOW
Sep 15 – Oct 14, 2026
30-day window anchored on the latest permit in the feed
Thirty days of filings
Building permits filed on each calendar day, September 15, 2026 – October 14, 2026. Weekend dips are the city offices closed, not construction stopping.
Top 10 permits by reported value
The largest reported construction values filed in the window. "Not reported" means the applicant left the field blank — we never fill it in.
| # | Address | Work description | Reported value |
|---|---|---|---|
| 1 | 400 S LA SALLE ST | PHASE 3 OF 3: INTERIOR ALTERATIONS TO EXISTING 7-STORY OFFICE BUILDING TO CONVERT TO A DATA CENTER. WORK TO IN… | $151,112,046 |
| 2 | 225 W RANDOLPH ST | SELF CERT 2019 CBC: INTERIOR ALTERATIONS TO EXISTING OFFICE FLOORS 10 THROUGH 16 FOR BUILDOUT OF GOLUB CAPITAL… | $44,919,084 |
| 3 | 333 W WOLF POINT PLZ | SELF-CERT CBC: INITIAL BUILDOUT OF 56,721 SF COMMERICAL OFFICE SPACE ON 19TH, 20TH, AND 21ST FLOORS (3 CONTIGU… | $29,000,000 |
| 4 | 136 N KEDZIE AVE | DDS 2019 CBC: FULL BUILDING PERMIT FOR A 5-STORY MIXED-USE BUILDING WITH GROUND FLOOR COMMERCIAL AND OFFICE SP… | $28,795,046 |
| 5 | 8332 S DR MARTIN L KING JR DR | DDS 2019 CBC: NEW CONSTRUCTION OF A 52 UNIT SENIOR RESIDENTIAL BUILDING. THE PROJECT INCLUDES (44) 1 BEDROOM U… | $25,000,000 |
| 6 | 4717 S CALUMET AVE | SPR 2019 CBC - PBC/DFSS/2FM - #10030: PILES (VERTICAL PENETRATION) ONLY FOR NEW CONSTRUCTION OF A 2-STORY SEN… | $21,000,000 |
| 7 | 4717 S CALUMET AVE | SPR 2019 CBC - PBC/DFSS/2FM - #10030: FOUNDATION, GRADE BEAMS, UNDERGROUND UTILITIES, AND LANDSCAPE. FOR NEW… | $21,000,000 |
| 8 | 5215 N CALIFORNIA AVE | SELF CERT 2019 CBC: INTERIOR ALTERATIONS TO EXISTING MERCANTILE SPACE ON THE GROUND FLOOR OF THE FOSTER MEDICA… | $20,690,000 |
| 9 | 315 S JEFFERSON ST | DDS 2019 CBC: NEW CONSTRUCTION OF A 9-STORY MIXED USE BUILDING WITH BASEMENT ON CAISSONS. THE 1ST FLOOR WILL… | $19,000,000 |
| 10 | 1651 E 95TH ST | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 3 PACKAGED TERMINAL DX SYSTEM(CARRIER 48GEEMO8A2M5-8W3C0 ROOF) . EL… | $18,230,600 |
What kind of permits
Every permit filed in the window, grouped by permit type.
| Permit type | Count | Share |
|---|---|---|
| PERMIT – EXPRESS PERMIT PROGRAM | 2,081 | 67.0% |
| PERMIT - RENOVATION/ALTERATION | 471 | 15.2% |
| PERMIT - SIGNS | 200 | 6.4% |
| PERMIT - NEW CONSTRUCTION | 131 | 4.2% |
| PERMIT - ELEVATOR EQUIPMENT | 107 | 3.4% |
| PERMIT - WRECKING/DEMOLITION | 77 | 2.5% |
| PERMIT - REINSTATE REVOKED PMT | 41 | 1.3% |
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