COMPANY RECORD · CHICAGO, IL
Ohare Mechanical — permit history in Chicago, IL
Ohare Mechanical appears on 73 Chicago permit records from 2008 through 2026, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 73 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2008 | 1 |
| 2010 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 7 |
| 2023 | 12 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 3 |
Busiest year on record: 2023, with 12 permits. One project can account for several filings, so read this as filing activity rather than workload.
Named on the same permit
| Name in source | Linked permits | Last seen |
|---|---|---|
| Interior Alterations | 19 | 2023-11-14 |
| Henry Bros.Co. | 11 | 2026-02-26 |
| Staalsen Construction Co., Inc. | 7 | 2023-07-10 |
| Staalsen Construction Co | 5 | 2023-07-10 |
| Executive Construction , Inc. | 5 | 2026-04-28 |
| L.R. Hein Construction Corporation | 4 | 2024-07-09 |
| O'malley Construction Company | 2 | 2023-11-27 |
| Glenn H. Johnson Construction Co. | 2 | 2012-01-18 |
| Mdi Access Inc | 2 | 2021-01-19 |
| Slaten Construction Inc | 2 | 2022-07-21 |
| Hammer Construction LLC | 2 | 2019-04-08 |
| Paul Borg Construction Co Inc | 1 | 2025-08-25 |
35 companies are named alongside Ohare Mechanical on the same Chicago permit. A shared permit is a documented co-appearance, not proof of a current contract. Names appear as the authority published them.
Where they worked
| Address in source | Most recent permit |
|---|---|
| 1622 N CALIFORNIA AVE | 2026-07-09 |
| 401 N MICHIGAN AVE | 2026-04-28 |
| 9212 S BURLEY AVE | 2026-02-26 |
| 30 S WACKER DR | 2025-12-31 |
| 2323 S ROCKWELL ST | 2025-08-25 |
| 51 W HUBBARD ST | 2025-06-12 |
| 3700 W 103RD ST | 2025-05-01 |
| 331 N LA SALLE DR | 2025-03-13 |
| 325 N LA SALLE DR | 2024-12-06 |
| 2651 W 83RD PL | 2024-10-09 |
| 3216 N BROADWAY | 2024-07-09 |
| 18 S MICHIGAN AVE | 2023-11-27 |
| 142 E ONTARIO ST | 2023-11-14 |
| 1165 N CLARK ST | 2023-09-27 |
54 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $33,500,000, median $285,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
73 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101075005 | 2026-07-09 | Mechanical / HVAC | 1622 N CALIFORNIA AVE | DDS 2019 CBRC: RENOVATION OF A 4-STORY, 39-UNIT SRO BUILDING WITH 2 GROUND FLOOR COMMERCIAL UNITS INTO A 41-UNIT NON-CONGREGATE TRANSITIONAL SHELTER WITH GROUND FLOOR SUPPORT SPACE | $1,475,790 |
| 101081881 | 2026-04-28 | Mechanical / HVAC | 401 N MICHIGAN AVE | SELF-CERT 2019 CBRC: TENANT IMPROVEMENTS IN EXISTING OFFICE BUILDING FOR A SINGLE OFFICE TENANT ON FLOORS 20¿23. WORK INCLUDES NEW NON-STRUCTURAL PARTITIONS, FINISHES, LIGHTING, MI | $900,000 |
| 101076739 | 2026-02-26 | Mechanical / HVAC | 9212 S BURLEY AVE | DDS 2019 CBC:REVISION TO PERMIT#101027746 FOR ELECTRICAL - INCOMING SERVICE AND METERING REVISIONS AS WELL AS REVISIONS TO UNIT CIRCUITING. ADDED GENERATOR TO SUPPORTSTANDBY POWER | $75,000 |
| 101077927 | 2025-12-31 | Mechanical / HVAC | 30 S WACKER DR | SELF CERT 2019 CBRC: INTERIOR ALTERATIONS TO DEMISE TENANT BUILDOUTS ON 12TH FLOOR. WORK TO INCLUDE DEMO, NEW PARTITIONS, ELECTRICAL, MECHANICAL, AND PLUMBING AS PER PLANS. 1A CON | $1,500,000 |
| 101059906 | 2025-08-25 | Mechanical / HVAC | 2323 S ROCKWELL ST | INTERIOR RENOVATIONS OF BUS STORAGE & SERVICE BUILDING. WORK TO INCLUDE MECHANICAL & ELECTRICAL. NO CHANGE IN USE. AS PER PLANS (NO PLUMBING WORK UNDER THIS PERMIT) **CONDITIONAL P | $679,000 |
| 101065785 | 2025-06-12 | Mechanical / HVAC | 51 W HUBBARD ST | SPR 2019 CBRC ALTERATIONS TO EXISTING GROUND FLOOR AND LOWER LEVEL RESTAURANT DINING SPACE IN EXISTING HOTEL BUILDING WORK TO FIRST FLOOR WEST DINING SPACE UNDER SEPARATE PERMIT 1 | $1 |
| 101064605 | 2025-05-01 | Mechanical / HVAC | 3700 W 103RD ST | 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING A-3 ASSEMBLY (MUSIC PERFORMANCE) SPACE ON THE 2ND AND 3RD FLOORS WITHIN EXISTING BUSINESS OCCUPANCY BUILDING (COLLEGES AND UNIVERSITIES) | $1,350,000 |
| 101065882 | 2025-03-13 | Mechanical / HVAC | 331 N LA SALLE DR | SELF-CERT 2019 CRBC: INTERIOR RENOVATION OF EXISTING RESIDENTIAL KITCHEN APPLIANCE SHOWROOM ON FLOOR 8.(OCCUPANCY GROUP B; TYPE 1A CONSTRUCTION) | $300,000 |
| 101061925 | 2024-12-06 | Mechanical / HVAC | 325 N LA SALLE DR | REVISION TO PERMIT #101056377 TO REMOVE SCOPE OF WORK IN COMMON AREA CORRIDORS ON FLOORS 2-6 AND REMOVE SCOPE OF WORK IN COMMON AREA RESTROOMS ON FLOORS 2, 3, 5, AND 6 OF EXISTING | $1,125,000 |
| 101060365 | 2024-11-20 | Mechanical / HVAC | 51 W HUBBARD ST | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO FIRST FLOOR WEST SIDE ONLY OF EXISTING RESTAURANT SPACE TO DEMISE AND BUILDOUT FOR NEW CONCEPT ALTERATIONS TO REMAINDER OF RESTAURANT T | $100,000 |
| 101027746 | 2024-11-13 | Mechanical / HVAC | 9212 S BURLEY AVE | DDS 2019 CBC: NEW CONSTRUCTION MIXED USE, 100% AFFORDABLE, TOD BUILDING WITH 81 TOTAL RESIDENTIAL UNITS. THE 5-STORY BUILDING OF 103,887 GSF WILL CONSIST OF STUDIO, 1-BEDROOM, 2-BE | $33,500,000 |
| 101060138 | 2024-10-31 | Mechanical / HVAC | 325 N LA SALLE DR | SELF-CERT 2019 CBC: INTERIOR ALTERATIONS TO EXISTING TENANT SPACE, SUITE 500, FLOOR 5, IN 8 STORY COMMERCIAL BUILDING. NO CHANGE IN TENANT. REDUCTION IN SF FROM 9,164 TO 5,888. (OC | $360,000 |
| 101052276 | 2024-10-09 | Mechanical / HVAC | 2651 W 83RD PL | REVISION TO #100962073 FOR ADA-COMPLIANT CLEARANCES AND THRESHHOLDS, PER PLANS. | $5,000 |
| 101056377 | 2024-09-03 | Mechanical / HVAC | 325 N LA SALLE DR | SELF-CERT 2019 CBC INTERIOR ALTERATIONS AND UPDATES TO COMMON AREAS ON FLOORS 1-6 OF EXISTING 8 STORY 11 WITH CLOCK TOWER OFFICE BUILDING INCLUDING CONVERSION OF 4TH FLOOR OFFICE S | $1,125,000 |
| 101033948 | 2024-08-05 | Mechanical / HVAC | 325 N LA SALLE DR | SPR 2019 CBRC: INTERIOR RENOVATION OF COMMERCIAL UNIT 325 ON THE 3RD FLOOR OF THE EXISTING 8-STORY BUILDING. (OCCUPANCY GROUP: GROUND FLOOR: A2 AND OTHER FLOORS: B; TYPE IA CONSTRU | $125,000 |
| 101048107 | 2024-07-09 | Mechanical / HVAC | 3216 N BROADWAY | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS ONLY TO EXISTING RETAIL TENANT SPACE TO ACCOMMODATE NEW PHYSICAL THERAPY (BUSINESS OCCUPANCY) TENANT. SCOPE INCLUDES DEMOLITION AND CONSTR | $180,892 |
| 101035526 | 2023-11-27 | Mechanical / HVAC | 18 S MICHIGAN AVE | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 6TH FLOOR OFFICE SPACE. NO CHANGE TO EXISTING USE. (OCCUPANCY B/ CONSTRUCTION TYPE 1A) | $1,500,000 |
| 101038068 | 2023-11-14 | Mechanical / HVAC | 142 E ONTARIO ST | **SELF CERT 2019 CRBC**: INTERIOR RENOVATION TO EXISTING 5TH FLOOR CORRIDORS, RESTROOMS. AND SUITE 500. WORK INCLUDES INTERIOR PARTITIONS, FINISHES, ELECTRICAL, MECHANICAL, AND PL | $225,000 |
| 101037278 | 2023-11-06 | Mechanical / HVAC | 142 E ONTARIO ST | **SELF CERT 2019 CRBC**: INTERIOR ALTERATIONS TO THE EXISTING 5TH FLOOR. WORK INCLUDES INTERIOR PARTITIONS, DOORS, FINISHES, ELECTRICAL, MECHANICAL, AND PLUMBING. NO STRUCTURAL WO | $163,716 |
| 101030467 | 2023-09-27 | Mechanical / HVAC | 1165 N CLARK ST | [SELF-CERT] INTERIOR TENANT SUITE (#305) ALTERATIONS WITHIN EXISTING MID-RISE OFFICE BUILDING. BASIC ALTERATIONS TO MECHANICAL AND ELECTRICAL/LIGHTING SYSTEMS TO ACCOMMODATE UPDAT | $60,000 |
| 101026601 | 2023-09-07 | Mechanical / HVAC | 33 N LA SALLE ST | SELF CERT 2019 CBRC: INTERIOR ALTERATIONS TO AHLGREN LAW GROUP ON THE 18TH FL. WORK TO INCLUDE NEW WALLS, DOORS, CEILING GRID, MILLWORK, FINISHES, MECHANICAL, ELECTRICAL, AD PLUMBI | $408,300 |
| 100962073 | 2023-08-17 | Mechanical / HVAC | 2651 W 83RD PL | NEW CONSTUCTION FOR FULLY ADA-COMPLIANT SINGLE STORY, SLAB ON GRADE, WOOD FRAMED SIX-BEDROOM, 2.5 BATH COMMUNITY INTEGRATED LIVING ARRANGEMENT (CLIA) HOUSE, WITH SEPARATE GARAGE, F | $900,000 |
| 101019803 | 2023-07-14 | Mechanical / HVAC | 500 N DEARBORN ST | SPR 2019 CBC INTERIOR ALTERATIONS TO 6TH FLOOR OFFICE SPACE (EXISTING FULLY SPRINKLED 13 STORY 1A OFFICE BUILDING B OCCUPANCY) | $800,000 |
| 101021007 | 2023-07-12 | Mechanical / HVAC | 142 E ONTARIO ST | SELF CERT 2019 CBRC: INTERIOR ALTERATIONS TO OFFICE SUITE 1400 FOR COGNITION HEALTH . WORK TO INCLUDE DEMO, NEW PARTITIONS, MECHANICAL, PLUMBING AND ELECTRICAL AS PER PLANS. 1A CON | $360,000 |
| 100977869 | 2023-07-10 | Mechanical / HVAC | 8333 S RACINE AVE | SPR 2019 CBRC: INTERIOR BUILDOUT OF EXISTING MASONRY BUILDING FOR A NEW CHILD DAY CARE CENTER.INCLUDES NEW ROOF ON EXISTING BAR JOISTS, NEW WINDOWS AND DOORS IN EXISTING MASONRY WA | $560,000 |
| 100997353 | 2023-05-10 | Mechanical / HVAC | 414 N CENTRAL PARK BLVD | SPR 2019 CBC: REVISION TO PERMIT #100935932 TO CHANGE HVAC, ELECTRICAL & PLUMBING SYSTEMS. ARCHITECTURAL AND STRUCTURAL FOUNDATION CHANGES AND EV CHARGING SPOT ON SITE AS PER PLANS | $10,750,000 |
| 101002903 | 2023-03-30 | Mechanical / HVAC | 1165 N CLARK ST | [SELF-CERT] INTERIOR TENANT SUITE (#500) ALTERATIONS WITHIN EXISTING ID-RISE OFFICE BUILDING. BASIC ALTERATIONS TO MECHANICAL AND ELECTRICAL/LIGHTING SYSTEMS TO ACCOMMODATE UPDATE | $80,000 |
| 101003847 | 2023-03-27 | Mechanical / HVAC | 205 N MICHIGAN AVE | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 39TH FLOOR OFFICE SPACE. NO CHANGE TO EXISTING USE. (OCCUPANCY B / CONSTRUCTION TYPE 1A) | $300,000 |
| 100995168 | 2022-11-07 | Mechanical / HVAC | 22 W HUBBARD ST | REPLACE EXISTING ROOFTOP UNITS WITH CARRIER ROOFTOP UNITS, ONE 25 TON, TWO 20 TON, ONE 7 1/2 TON, SELF CONTAINED, AIR COOLED, R410A. REPLACE (1) MUA WITH ONE CARRIER 20 TON SPLIT W | $0 |
| 100974755 | 2022-07-22 | Mechanical / HVAC | 900 W RANDOLPH ST | 2019 CBRC SELF-CERT: INTERIOR ALTERATION TO EXISTING RETAIL SPACE 2A TO INCLUDE NEW PARTITIONS, MECHANICAL AND ELECTRICAL WORK AS PER PLANS. M- MERCANTILE. 3B CONSTRUCTION | $105,424 |
| 100951549 | 2022-07-22 | Mechanical / HVAC | 3255 N CICERO AVE | RENOVATION OF EXISTING 2-STORY AUTO DEALERSHIP AND SERVICE CENTER WITH BASEMENT, TYPE II CONSTRUCTION, C2-1 ZONING DISTRICT. EXISTING BUILDING IS ON A 40,400 SF LOT, HAS 27,000 SF | $5,000,000 |
| 100979961 | 2022-07-21 | Mechanical / HVAC | 58 E WALTON ST | *SELF CERT 2019 CBRC: INTERIOR BUILD OF 1ST FLOOR AS PER PLANS. WORK INCLUDES HVAC, ELECTRICAL, PLUMBING, INTERIOR PARTITIONS, AND EXTERIOR FINISHES. NO STRUCTURAL WORK TO BE PERFO | $240,000 |
| 100916909 | 2022-07-12 | Mechanical / HVAC | 2043 N KILDARE AVE | INTERIOR RENOVATIONS TO EXISTING 3.5 STORY FRAME BUILDING WITH 3 DU; DUPEX THIRD FLOOR INTO ATTIC; NEW EXTERIOR SIDING; NEW DOORS, WINDOWS, KITCHEN CABINETS; MEP AS PER PLANS CURRE | $100,000 |
| 100970597 | 2022-06-07 | Mechanical / HVAC | 58 E WALTON ST | *SELF-CERTIFICATION 2019 CBRC*: INTERIOR DEMO OF 1ST FLOOR AS PER PLANS. NO STRUCTURAL WORK TO BE PERFORMED. NO CHANGE IN USE, M-MERCANTILE AND CONSTRUCTION TYPE 2B | $25,000 |
| 100964369 | 2022-03-28 | Mechanical / HVAC | 933 W VAN BUREN ST | REMOVE THE EXISTING MCQUAY (DAIKIN) ROOFTOP UNIT AND REPLACE WITH DAIKIN ROOFTOP UNIT SAME MODEL RPS042D, 40 TON, SELF CONTAINED, AIR COOLED, R410A. | $0 |
| 100944296 | 2021-12-02 | Mechanical / HVAC | 131 S DEARBORN ST | SELF-CERT. INTERIOR RENOVATION OF 20,122 SQ. FT. OF OFFICE ON THE 16TH FLOOR. | $503,050 |
| 100936869 | 2021-10-22 | Mechanical / HVAC | 142 E ONTARIO ST | SELF-CERT 2019 CBRC: INTERIOR BUILD-OUT ON THE 3RD AND 15TH FLOORS. WORK INCLUDES INTERIOR PARTITIONS, FINISHES, ELECTRICAL, PLUMBING, AND MECHANICAL. NO STRUCTURAL WORK TO BE PERF | $1,572,439 |
| 100937398 | 2021-10-20 | Mechanical / HVAC | 63 W GRAND AVE | SELF-CERTIFICATION OF RENOVATION OF EXISTING RESTAURANT SPACE. NOCHANGES IN ZONING OR BUILDING OCCUPANCY CLASSIFICATION.ARCHITECTURAL, MECHANICAL, PLUMBING, AND ELECTRICAL WORK. ST | $250,000 |
| 100940621 | 2021-10-19 | Mechanical / HVAC | 142 E ONTARIO ST | SELF CERT 2019 CBRC: INTERIOR ALTERATIONS TO PORTIONS OF THE 10TH AND 16TH FLOOR (SUITE 1000 & SUITE 1625) IN AN EXISTING OFFICE BUILDING AS PER PLANS. (CONSTRUCTION TYPE IA; OCCUP | $351,349 |
| 100916912 | 2021-05-05 | Mechanical / HVAC | 300 S WACKER DR | SELF-CERT 2019 CBC: INTERIOR ALTERATIONS TO AN EXISTING SUITE #2750 ON THE 27TH FLOOR AS PER PLANS. WORK TO INCLUDE DEMOLITION, NEW PARITION, , FINISHES, DOORS AND HARDWARE, CEILI | $237,121 |
| 100888671 | 2021-01-19 | Mechanical / HVAC | 725 S WELLS ST | SPR 2019 CBC: EXISTING BUSINES, ELECTRONIC DATA PROCESSING AND STORAGE TYPE 1A, NON-COMBUSTIBLE BUILDING. NEW ROOFTOP STEEL PLATFORM TO SUPPORT BUILDING INFRASTRUCTURE. IN ADDITION | $6,706,000 |
| 100905802 | 2021-01-14 | Mechanical / HVAC | 70 W MADISON ST | REVISION TO CHANGE OF HVAC CONTRACTOR PERMIT#100882516 TO O'HARE MECHANICAL CONTRACTORS. | $75 |
| 100876789 | 2020-12-08 | Mechanical / HVAC | 725 S WELLS ST | EXISTING 8 STORY COMMERCIAL BUILDING RENOVATION ,DEMO(WHITE BOX) FOR TECH CENTER MEZZANINE,2ND AND 4TH FLOOR AS PER PLANS **CERTIFIED PLANS CORRECTIONS: CONDITIONAL PERMIT SUBJECT | $500,000 |
| 100894303 | 2020-11-03 | Mechanical / HVAC | 4315 W MCLEAN AVE | INTERIOR RENOVATION OF EXISTING SINGLE FAMILY RESIDENCE; WORK TO INCLUDE NEW WINDOWS, NEW KITCHEN CABINETS; NEW BATHROOM IN 2ND FLOOR, NEW INTERIOR STAIRS, MECHANICAL, ELECTRICAL A | $100,000 |
| 100888238 | 2020-10-31 | Mechanical / HVAC | 4315 N BROADWAY | REPLACEMENT OF EXISTING GAS-FIRED FURNACES AND AIR CONDITIONING WITH NEW ROOFTOP HVAC UNITS AND ASSOCIATED WORK AT EXISTING 1-STORY RETAIL STORE. NO CHANGE OF EXISTING MERCANTILE U | $150,000 |
| 100873579 | 2020-05-11 | Mechanical / HVAC | 200 S WACKER DR | INTERIOR BUILDOUT OF EXISTING BUILDING CORE BATHROOMS ON THE 6TH FLOOR. WORK INCLUDES DEMOLITION OF EXISTING FINISHES, LIGHTS, SINKS, TOILET PARTITIONS AND TOILETS, AS WELL AS REPL | $13,680 |
| 100869336 | 2020-04-24 | Mechanical / HVAC | 12144 S AVENUE O | ***DIRECT DEVELOPER SERVICES*** REVISION TO PERMIT #100857397 FOR A NEW BATTERY CHARGING AREA WITH EYEWASH STATION/SHOWER TO INCLUDE ELECTRICAL, PLUMBING AND MECHANICAL AS PER PLAN | $285,000 |
| 100852242 | 2020-03-10 | Mechanical / HVAC | 20 N WACKER DR | SELF-CERT. PROJECT: INTERIOR ALTERATIONS IN EXISTING OFFICE BUILDING TO THE EXISTING OFFICE SPACE ON THE 6TH FLOOR, SUITE 622, TO EXPAND THE TENANT SUITE BY 1,705 SQFT, AS PER PLAN | $180,000 |
| 100858863 | 2020-01-17 | Mechanical / HVAC | 200 S WACKER DR | REVISION TO CHANGE OF GENERAL,PLUMBING,HVAC CONTRACTOR.PERMIT#100854227. | $75 |
| 100811531 | 2019-11-14 | Mechanical / HVAC | 5917 N NINA AVE | EXISTING LARGE ASSEMBLY-RELIGIOUS ASSEMBLY TO REMAIN A LARGE ASSEMBLY- RELIGIOUS ASSEMBLY. NO CHANGE IN USE. GENERAL REMODELING AND INTERIOR & EXTERIOR ALTERATIONS TO BUILDING FOR | $500,000 |
Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.
Source and limits
Public Chicago permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →