Issued / ready
#B200516860 · 5725 S Hoyne Ave$27,262
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Contractor name / Source history
Cortex Construction Group Ltd
Filings naming this contractor, across the public source's longer history.
Older filings have not been checked yet.
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Free account · five lookups per hour
Recent collected filings34
Earliest in these recordsJul 13, 2026
Latest in these recordsOct 21, 2026
This query uses the listed source name, ignoring letter case. Aliases and namesakes are not resolved, and this is not a company's verified complete work history. Dates mean issued / ready to issue. They do not establish construction start, completion, available bids, or work quality. Reported estimates are not added.
Filings by source date
Issued / ready
#101084928 · 447 E 42nd Pl$1,200,000
Source status: Active
Work description & named contractors
Roofing · Multifamily building
MAURICE HARRISON · Contractor-Electrical
3RD EYE BUILDERS CORPORATION · Contractor-General Contractor
CORTEX CONSTRUCTION GROUP LTD · Masonry Contractor
VJJ PLUMBING · Contractor-Plumber/Plumbing
DC HEATING AND AIR CONDITIONIN · Contractor-Refrigeration
DC HEATING AND AIR CONDITIONIN · Contractor-Ventilation
Issued / ready
#101075776 · 3040 W Medill Ave$150,000
Source status: Active
Work description & named contractors
Interior work
LEGACY ELECTRIC, INC · Contractor-Electrical
HALO MASONRY & CONSTRUCTION, INC. · Contractor-General Contractor
CORTEX CONSTRUCTION GROUP LTD · Masonry Contractor
VALMEL CONCRETE WORKS, INC · Masonry Contractor
BRASERO PLUMBING & CONSTRUCTIO · Contractor-Plumber/Plumbing
Issued / ready
#B200515933 · 4512 S Leamington Ave$33,219
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#101084924 · 445 E 42nd Pl$1,200,000
Source status: Active
Work description & named contractors
Roofing · Multifamily building
MAURICE HARRISON · Contractor-Electrical
3RD EYE BUILDERS CORPORATION · Contractor-General Contractor
CORTEX CONSTRUCTION GROUP LTD · Masonry Contractor
VJJ PLUMBING · Contractor-Plumber/Plumbing
DC HEATING AND AIR CONDITIONIN · Contractor-Refrigeration
DC HEATING AND AIR CONDITIONIN · Contractor-Ventilation
Issued / ready
#B200514695 · 1124 W Wilson Ave$25,980
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200481453 · 2754 S Springfield Ave$23,003
Source status: Active
Work description & named contractors
Roofing
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200514158 · 2246 S Avers Ave$32,158
Source status: Active
Work description & named contractors
Roofing
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200514160 · 2246 S Avers Ave$9,105
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200513959 · 2619 S Avers Ave$39,537
Source status: Active
Work description & named contractors
Roofing
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#101075396 · 6246 N Pulaski Rd$220,000
Source status: Active
Work description & named contractors
Interior work
TOMIS ELECTRIC · Contractor-Electrical
APEX CONSTRUCTION GROUP · Contractor-General Contractor
CORTEX CONSTRUCTION GROUP LTD · Masonry Contractor
METROPOLITAN PLUMBING & MECHAN · Contractor-Plumber/Plumbing
AS MECHANICAL CORP · Contractor-Refrigeration
AS MECHANICAL CORP · Contractor-Ventilation
Issued / ready
#B200511343 · 8733 S Commercial Ave$39,351
Source status: Active
Work description & named contractors
View work details in the official source
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200512925 · 5719 S Winchester Ave$29,334
Source status: Active
Work description & named contractors
Roofing
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#101088156 · 2438 S Drake Ave$39,585
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Contractor-General Contractor
Issued / ready
#B200512816 · 6811 S Loomis Blvd$21,284
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200512581 · 2300 S St Louis Ave$39,305
Source status: Active
Work description & named contractors
Roofing
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200512147 · 7242 S Hamlin Ave$38,097
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200512189 · 7433 N Claremont Ave$16,272
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#101085473 · 549 W Randolph St$25,000
Source status: Active
Work description & named contractors
Building work
ARCO/MURRAY NATIONAL CONSTRUCTION COMPANY LLC · Contractor-General Contractor
CORTEX CONSTRUCTION GROUP LTD · Masonry Contractor
Issued / ready
#B200511188 · 3610 W Lexington St$39,665
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#101085990 · 11537 S La Salle St$39,000
Source status: Active
Work description & named contractors
Roofing · Electrical
ATEC CONSTRUCTION INC · Contractor-Electrical
CORTEX CONSTRUCTION GROUP LTD · Contractor-General Contractor
Issued / ready
#B200508902 · 2737 W 18th St$30,057
Source status: Active
Work description & named contractors
Roofing
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200508908 · 2737 W 18th St$9,768
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
CORTEX CONSTRUCTION GROUP LTD · General Contractor
Issued / ready
#B200481457 · 1919 W Garfield Blvd$9,811
Source status: Active
Work description & named contractors
Building work
CORTEX CONSTRUCTION GROUP LTD · Mason Contractor
Issued / ready
#B200481462 · 1919 W Garfield Blvd$29,248
Source status: Active
Work description & named contractors
Roofing
CORTEX CONSTRUCTION GROUP LTD · General Contractor
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Planning rows link to the City Clerk, ADU or Plan Commission source; their checked scope is shown on Planning. Application rows link to the public status portal and retain its separate date meanings. Permit source: City of Chicago Building Permits ↗. Queries cover available source filings from January 1, 2006, with up to 5,000 newest records. Voided/revoked permits are excluded by the source. Historical lookups stay separate from daily alerts and do not expand citywide coverage.