Contractor Profile

Cortex Construction Group Ltd

Cortex Construction Group Ltd concentrates in residential alteration in Chicago (94% of its 17 segment-eligible permits), with secondary activity across 1 other segment. Its permit record in Chicago spans 2021–2025. Reliable permit valuations total ≈$648K (across the 100% of filings with a valuation we can stand behind).

First permit: Apr 20, 2021 (1,919d ago)Latest permit: Aug 26, 2025 (330d ago)
The sales record
Market
Chicago
Active
2021–2025 · 4 yrs
Licenses on file
0
Reliable value
$648K
Coverage
100%
Reliable filings
17
Rank in Chicago
#2,685
Permits (all-time, all segments)
22
Filings 90d
1
Filings 30d
0
Latest permit
Aug 26, 2025
Typical project size$28Ktypically $20K–$47K across 17 valued permits
Where they work

Primarily Residential Alteration 94% of 17 segment-classified permits

Ranked #1,021 in the Chicago Residential Alteration leaderboard →
Firmographics
License & registration IDs on fileNo license records in the source data.
Direct contactNot in our data — we don’t fabricate firmographics.
Service area

Typical service area ~10 mi in Chicago

The p90 footprint of where Cortex Construction Group Ltd has pulled permits in Chicago — based on 23 geocoded permits (100% of their indexed set). It reflects detected permit activity, not a guaranteed service-area claim.

  • Chicago23
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Recent permitsLargest recent$116K· 4930 N Whipple St, Chicago, IL

Showing 17 of 17 permits by Cortex Construction Group Ltd in the indexed window · most recent first

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May 1, 2026
applied Mar 24, 2026
2557 E 106th St, Chicago, IL
Residential Alteration
$20K
Aug 26, 2025
applied Jul 21, 2025
6517 S Bell Ave, Chicago, IL
Residential Alteration
$15K
Apr 3, 2025
applied Feb 24, 2025
7313 S Marshfield Ave, Chicago, IL
Residential Alteration
$10K
Feb 26, 2025
applied Sep 16, 2024
6852 N Northwest Hwy, Chicago, IL
Commercial Alteration
$47K
Jul 17, 2024
applied May 29, 2024
2158 N Natchez Ave, Chicago, IL
Residential Alteration
$28K
Jul 10, 2024
applied May 29, 2024
2200 N Natchez Ave, Chicago, IL
Residential Alteration
$28K
Dec 19, 2023
applied Nov 14, 2023
4553 S Washtenaw Ave, Chicago, IL
Residential Alteration
$25K
Aug 4, 2023
1747 N Oak Park Ave, Chicago, IL
Residential Alteration
$33K
Jul 10, 2023
3633 S Giles Ave, Chicago, IL
Residential Alteration
$40K
May 31, 2023
3322 W Newport Ave, Chicago, IL
Residential Alteration
$14K
May 17, 2023
1951 W Belmont Ave, Chicago, IL
Residential Alteration
$77K
Apr 10, 2023
applied Mar 30, 2023
5200 S Ellis Ave, Chicago, IL
Residential Alteration
$75K
Apr 4, 2023
615 S California Ave, Chicago, IL
Residential Alteration
$56K
Oct 12, 2022
4606 N Harding Ave, Chicago, IL
Residential Alteration
$21K
Sep 29, 2022
8545 S Kolin Ave, Chicago, IL
Residential Alteration
$20K
Jul 22, 2021
4930 N Whipple St, Chicago, IL
Residential Alteration
$116K
Apr 20, 2021
4323 N Winchester Ave, Chicago, IL
Residential Alteration
$24K
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