Monthly archive · Cook County, Illinois
Chicago Building Permits — October 2025
Every building permit issued by the City of Chicago in October 2025: counts, reported value, permits by trade, and the month's biggest projects.
Source: City of Chicago open data — building permits. Source last updated: October 17, 2026 · Our last pull: October 17, 2026 · Figures are as reported by the City of Chicago.
Coverage: this report covers building permits issued by the City of Chicago, the largest jurisdiction in Cook County. Suburban Cook County permits are published by separate municipalities and are not in this feed yet, so county totals here are Chicago totals — labeled as such, never blended.
Partial month: our coverage of this feed begins October 17, 2025, so this archive covers October 17–31, 2025.
PermitsByCounty data, Cook County (Chicago), October 2025 · Source: City of Chicago
Questions, answered from the data
What was the largest building permit issued in Chicago in October 2025?
The largest was permit #101073691 at 370 N Morgan St, with a reported project value of $155,000,000, issued in October 2025, as reported by the City of Chicago.
Permits by trade — October 2025
| Trade | Permits issued | Reported value |
|---|---|---|
| Electrical | 417 | $12,517,652 |
| General & Other | 359 | $153,580,079 |
| Solar | 124 | $2,751,290 |
| Plumbing | 111 | $23,175,172 |
| Masonry | 105 | $4,371,412 |
| Signage | 96 | $577,207 |
| Fire Alarm | 70 | $0 |
| Roofing | 68 | $5,319,533 |
| Elevator | 57 | $10,276,816 |
| New Construction | 54 | $319,424,994 |
| Demolition | 47 | $1,808,300 |
| Fencing | 42 | $328,595 |
| HVAC | 39 | $18,953,555 |
Biggest projects issued in October 2025
| Project (permit #) | Trade | Reported value | Issued |
|---|---|---|---|
| 370 N Morgan St #101073691 (DDS / 2019 CBC) REVISION TO PERMIT 101059401 TO INFILL CONCRETE SLAB ON THE GROUND FLOOR, AND MODIFICATION… | New Construction | $155,000,000 | 2025-10-17 |
| 10000 W Ohare St #101071588 DDS 2019 CBC: SHALLOW FOUNDATIONS AND BELOW GRADE SUBSTRUCTURE PERMIT FOR BASEMENT LEVEL OF PROPOSED SATELL… | New Construction | $100,000,000 | 2025-10-29 |
| 11601 W Touhy Ave #101072776 DDS 2019 CBRC: AA ORD L CONCOURSE. INTERIOR RENOVATION, LIMITED RELOCATION OF CONCESSIONS PROGRAM, UPDATED … | General & Other | $85,000,000 | 2025-10-21 |
| 4442 S Cicero Ave #101061910 DDS / 2019 CBC: NEW CONSTRUCTION OF A 6-STORY RESIDENTIAL BUILDING (73 DWELLING UNITS) TO INCLUDE 40 BIKE S… | New Construction | $29,936,000 | 2025-10-22 |
| 1918 W Walnut St #101069171 DDS 2019 CBRC : INTERIOR ALTERATIONS OF AN EXISTING SINGLE-STORY BUILDING TO INCLUDE CLEANROOM FACILITIES, … | General & Other | $15,000,000 | 2025-10-28 |
| 500 E 51St St #101071845 SPR 2019 CBRC: MECHANICAL ONLY. REPLACE THE EXISTING INTERIOR AIR HANDLING UNITS LOCATED ON THE 4TH FLOOR O… | HVAC | $13,000,000 | 2025-10-31 |
| 4059 N Cicero Ave #101067455 DDS / 2019 CBC: NEW CONSTRUCTION OF A ONE (1) STORY RETAIL BUILDING TO INCLUDE AT-GRADE PARKING LOT AND ASS… | New Construction | $10,900,000 | 2025-10-20 |
| 233 S Wacker Dr #101075768 SELF-CERT 2019 CBRC: INTERIOR ALTERATION TO EXISTING OFFICE FLOORS 53 & 54 AS PER PLANS. WORK TO INCLUD… | Plumbing | $9,100,000 | 2025-10-27 |
| 1 N Wacker Dr #101075334 CORRECTION_SELF-CERT 2019 CBRC: ALTERATION EXIST-G BLDG-KEYBANK-TENANT BUILDOUT OF 32,986 SQFT FOR SINGLE T… | General & Other | $8,255,000 | 2025-10-30 |
| 2225 N Dayton St #101071015 SELF-CERT 2019 CBRC: ADMINISTRATIVE REVISION TO PERMIT 101069705 TO INCLUDE STRUCTURAL DRAWINGS AND CALCULA… | General & Other | $5,000,000 | 2025-10-17 |
Full report: Cook County (Chicago) county hub.