COMPANY RECORD · CHICAGO, IL
Zn Heating & Colling — permit history in Chicago, IL
Zn Heating & Colling appears on 236 Chicago permit records from 2011 through 2026, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 236 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2011 | 4 |
| 2012 | 13 |
| 2013 | 27 |
| 2014 | 27 |
| 2015 | 21 |
| 2016 | 19 |
| 2017 | 18 |
| 2018 | 16 |
| 2019 | 23 |
| 2020 | 13 |
| 2021 | 12 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 8 |
| 2025 | 6 |
| 2026 | 8 |
Busiest year on record: 2013, with 27 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 |
|---|---|---|
| Lopez Concrete, Inc. | 59 | 2026-08-17 |
| Pnc Development, Inc. | 48 | 2021-06-08 |
| Saint Joseph Construction Group, LLC | 32 | 2021-09-23 |
| Lolo Construction, Inc. | 24 | 2024-03-18 |
| Rd Precision, Inc | 22 | 2019-09-13 |
| Bm International Builders, Inc | 20 | 2018-06-15 |
| Pnc Builders Inc | 18 | 2026-08-17 |
| Demox, Inc. | 17 | 2019-09-13 |
| L.A. Development Corp. | 15 | 2026-06-15 |
| S & C Construction | 12 | 2015-08-06 |
| Ds Construction, Inc. | 11 | 2026-06-15 |
| Ampak Development, Inc. | 11 | 2020-07-08 |
73 companies are named alongside Zn Heating & Colling 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 |
|---|---|
| 4212 N MOZART ST | 2026-08-25 |
| 3340 N SEELEY AVE | 2026-08-17 |
| 2415 W CORTLAND ST | 2026-07-07 |
| 735 W 48TH PL | 2026-06-15 |
| 5737 N OTTAWA AVE | 2026-05-04 |
| 4158 W EDDY ST | 2026-04-28 |
| 3857 N TRIPP AVE | 2026-03-16 |
| 1459 W HOLLYWOOD AVE | 2025-04-25 |
| 5311 N MCVICKER AVE | 2025-04-04 |
| 2535 W BELDEN AVE | 2025-03-14 |
| 4522 N KENTON AVE | 2025-02-20 |
| 1907 W WOLFRAM ST | 2025-02-03 |
| 2533 W BELDEN AVE | 2025-01-27 |
| 1349 N ASTOR ST | 2024-10-28 |
213 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $2,303,600, median $190,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
236 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101086418 | 2026-08-25 | Mechanical / HVAC | 4212 N MOZART ST | SELF CERTIFIED 2019 CBC. ERECT 2ND FLOOR FRAME ADDITION, INTERIOR REMODELING, NEW REAR OPEN WOOD PORCH, DEMOLISH EXISTING FRAME GARAGE & BUILD NEW DETACHED 3 CAR GARAGE AT EXISTIN | $200,000 |
| 101085577 | 2026-08-17 | Mechanical / HVAC | 3340 N SEELEY AVE | NEW TWO STORY FRAME (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT, NEW FRONT OPEN CONCRETE LANDING WITH STAIRS. NEW DETACHED FRAME TWO CAR GARAGE WITH ROOF | $500,000 |
| 101071480 | 2026-07-07 | Mechanical / HVAC | 2415 W CORTLAND ST | SPR 2019 CBC. NEW 2 STORY BRICK & FRAME 2 CAR GARAGE W/ 2ND FLOOR COACH HOUSE AS PER PLANS.**CERTIFIED PLANS CORRECTIONS: CONDITIONAL PERMIT SUBJECT TO FIELD INSPECTIONS ** NEW FRO | $120,000 |
| 101070601 | 2026-06-24 | Mechanical / HVAC | 2415 W CORTLAND ST | SPR 2019 CBC. NEW 2 STORY, 2 DWELLING UNITS BRICK & FRAME RESIDENTIAL BUILDING WITH BASEMENT, ROOF ACCESS PENTHOUSE. NEW ROOFTOP DECK. NEW FRONT METAL STAIRS, 2ND FLOOR FRONT BAY W | $580,000 |
| 101082943 | 2026-06-15 | Mechanical / HVAC | 735 W 48TH PL | NEW TWO STORY FRAME (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT, NEW FRONT STEEL COVERED PORCH WITH STAIRS. REAR FIRST FLOOR DECK UNDER 2ND FLOOR OVERHAN | $500,000 |
| 101080493 | 2026-05-04 | Mechanical / HVAC | 5737 N OTTAWA AVE | SELF CERTIFIED 2019 CBC. ERECT 2 STORY WITH BASEMENT FRAME SINGLE FAMILY RESIDENCE, FRONT METAL STAIRS, 3 CAR DETACHED GARAGE, 6 FT WOOD FENCE AS PER PLAN. | $500,000 |
| 101080872 | 2026-04-28 | Mechanical / HVAC | 4158 W EDDY ST | SPR 2019 CBC. NEW TWO STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT, NEW OPEN FRONT CONCRETE COVERED PORCH WITH STAIRS. NEW DETACHED FRAME TWO CAR G | $500,000 |
| 101077921 | 2026-03-16 | Mechanical / HVAC | 3857 N TRIPP AVE | SPR 2019 CBC. NEW TWO STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT, NEW OPEN FRONT CONCRETE COVERED PORCH WITH STAIRS. NEW ONE STORY SIDE MUD ROOM. | $500,000 |
| 101067216 | 2025-04-25 | Mechanical / HVAC | 1459 W HOLLYWOOD AVE | SELF-CERT 2019 CBC: FULL BUILDING PERMIT FOR DECONVERSION OF 2-STORY SINGLE FAMILY RESIDENCE (BASEMENT + 1ST FLOOR + 2ND FLOOR + ) (OCCUPANCY GROUP R-5, TYPE V-B CONSTRUCTION)¿ FRA | $120,000 |
| 101066188 | 2025-04-04 | Mechanical / HVAC | 5311 N MCVICKER AVE | SELF CERTIFIED 2019 CBC.ERECT 2 STORY WITH BASEMENT FRAME SINGLE FAMILY RESIDENCE, FRONT METAL STAIRS, 2 CAR DETACHED GARAGE, 6 FT WOOD FENCE AS PER PLAN. | $500,000 |
| 101063716 | 2025-03-14 | Mechanical / HVAC | 2535 W BELDEN AVE | SPR 2019 CBC. NEW 2 STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT, NEW GAS FIREPLACE AND OPEN FRONT CONCRETE ENTRY COVERED LANDING WITH STAIRS. NEW F | $490,000 |
| 101053233 | 2025-02-20 | Mechanical / HVAC | 4522 N KENTON AVE | SPR 2019 CBRC - INTERIOR REMODELING OF EXISTING FRAME SINGLE FAMILY RESIDENCE, NEW ELECTRICAL, NEW PLUMBING, NEW DRYWALL, NEW HVAC SYSTEM, NEW REAR WOOD DECK, EXCAVATION & UNDERPIN | $130,000 |
| 101063070 | 2025-02-03 | Mechanical / HVAC | 1907 W WOLFRAM ST | SPR 2019 CBRC: PROPOSED 2 STORY SFR W/BASEMENT, FRONT STAIRS/LANDING, 6' SIDE WOOD FENCE, AND 2 CAR GARAGE W/ROOF DECK, PER PLANS. | $490,000 |
| 101060478 | 2025-01-27 | Mechanical / HVAC | 2533 W BELDEN AVE | SPR 2019 CBC. NEW 2 STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT, NEW GAS FIREPLACE AND OPEN FRONT CONCRETE ENTRY COVERED LANDING WITH STAIRS. TWO 2 | $490,000 |
| 101052940 | 2024-10-28 | Mechanical / HVAC | 1349 N ASTOR ST | INTERIOR ALTERATIONS ON 1ST, 2ND AND 3RD FLOORS TO AN EXISTING 3 STORY 3A CONSTRUCTION, R-5 OCCUPANCY SINGLE FAMILY RESIDENCE W/BASEMENT, PER PLANS. **CERTIFIED PLANS CORRECTIONS: | $500,000 |
| 101059286 | 2024-10-09 | Mechanical / HVAC | 1449 W BLACKHAWK ST | SPR - 2019 CBC - INTERIOR ALTERATIONS TO EXISTING 2-STORY MASONRY BUILDING TO DUPLEX (1) D.U. TO BASEMENT. NO EXTERIOR WORK TO BE PERFORMED. NEW HVAC SYSTEM TO BE INSTALLED. (OCCUP | $65,000 |
| 101050550 | 2024-06-11 | Mechanical / HVAC | 5310 N BROADWAY | SELF-CERT 2019 CBRC: INTERIOR RENOVATION OF EXISTING COMMERCIAL SPACE FOR NEW TACO PROS RESTAURANT AS PER PLANS (OCCUPANCY GROUP B; TYPE I-B CONSTRUCTION) | $88,000 |
| 101050707 | 2024-06-05 | Mechanical / HVAC | 1349 N ASTOR ST | SPR 2019 CBRC: INTERIOR DEMOLITION OF NON-LOAD BEARING STRUCTURES REMOVE ALL PLUMBING FIXTURES, ELECTRICAL AND HVAC SYSTEM ON THE 1ST, 2ND, AND 3RD FLOORS PER PLANS ( CONSTRUCTIONT | $500,000 |
| 101042090 | 2024-04-15 | Mechanical / HVAC | 8934 S ELIZABETH ST | SPR 2019 CBC. FIRE RESTORATION AND REPAIRS OF EXISTING 1 STORY BRICK SINGLE FAMILY RESIDENCE WITH BASEMENT. ALL WORK AS PER PLANS. | $211,857 |
| 101040767 | 2024-03-20 | Mechanical / HVAC | 3632 N RICHMOND ST | SPR 2019 CBC. NEW 2 STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT AND OPEN FRONT ENTRY PORCH. NEW FRAME 2 CAR GARAGE. 250 LF OF 6 FEET HIGH WOOD FENC | $490,000 |
| 101042889 | 2024-03-18 | Mechanical / HVAC | 3318 N HARDING AVE | SPR 2019 CBC. REVISION TO PERMIT 101003740 ISSUED ON 06-28-23. CHANGE ELECTRICAL FIXTURES LAYOUT AND THEIR CONFIGURATION FOR ALL THREE FLOORS ONLY. NO CHANGE TO APPROVED BUILDING F | $18,000 |
| 101022505 | 2024-02-06 | Mechanical / HVAC | 1924 N WILMOT AVE | SPR 2019 CBRC - REVISION TO PERMIT 100974652 FOR EXTERIOR AND INTERIOR LAYOUT CHANGES. REMOVE THE ROOF DECK AND REAR METAL DECK (STEEL STAIR TO REMAIN) FROM THE 2 STORY SINGLE FAMI | $100,000 |
| 101034200 | 2023-11-21 | Mechanical / HVAC | 1709 W CARMEN AVE | SPR 2019 CBC. NEW 2 STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT AND OPEN FRONT ENTRY PORCH. NEW FRAME 2 CAR GARAGE WITH ROOF TOP DECK. 250 LF OF 6 | $550,000 |
| 101035195 | 2023-11-17 | Mechanical / HVAC | 4522 N KENTON AVE | INTERIOR REMODELING OF EXISTING FRAME SINGLE FAMILY RESIDENCE, NEW ELECTRICAL, NEW PLUMBING, NEW DRYWALL, NEW HVAC SYSTEM, NEW REAR WOOD DECK, FINISH BASEMENT | $150,000 |
| 101018958 | 2023-10-16 | Mechanical / HVAC | 3050 N SPAULDING AVE | SPR 2019 CBC: ERECT 2 STORY WITH BASEMENT FRAME SINGLE FAMILY RESIDENCE, FRONT OPEN WOOD PORCH, 2 CAR DETACHED GARAGE AND 6FT WOOD FENCE AS PER PLAN. | $400,000 |
| 101019016 | 2023-09-29 | Mechanical / HVAC | 2459 N GREENVIEW AVE | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS INCLUDING NEW MECHANICAL, ELECTRICAL AND PLUMBING SYSTEMS; EXTERIOR CLADDING, NEW WINDOWS AND DOORS IN NEW LOCATIONS. (OCCUPANCY CLASSIFIC | $200,000 |
| 101027890 | 2023-09-26 | Mechanical / HVAC | 4256 N KEELER AVE | SELF CERT 2019 CBRC: NEW 2-STORY FRAME REAR ADDITION WITH FULL BASEMENT TO EXISTING MASONRY 2-STORY SINGLE FAMILY RESIDNECE. NEW COVERED REAR PORCH. DEMO EXISTING DETACHED GARAGE A | $325,000 |
| 101017484 | 2023-07-27 | Mechanical / HVAC | 3052 N SPAULDING AVE | SPR 2019 CBC:ERECT 2 STORY WITH BASEMENT FRAME SINGLE FAMILY RESIDENCE, FRONT OPEN WOOD PORCH, 2 CAR DETACHED GARAGE AND 6FT WOOD FENCE AS PER PLAN. | $400,000 |
| 101003740 | 2023-06-28 | Mechanical / HVAC | 3318 N HARDING AVE | SPR 2019 CBC. NEW 2 STORY FRAME SINGLE FAMILY RESIDENCE WITH BASEMENT (OCCUPANCY R-5, CONSTRUCTION VA). ALL WORK AS PER PLANS (EXIST TWO CAR FRAME GARAGE UNDER PERMIT #100998569) * | $450,000 |
| 101021608 | 2023-06-22 | Mechanical / HVAC | 1924 N WILMOT AVE | REVISION TO PERMIT #100974652. CHANGE OWNER TO KEVIN AND ELLEN METZ CHANGE GC TO PNC BUILDERS INC., MASON TO LOPEZ CONCRETE INC., HVAC TO ZN HEATING & COOLING, INC.AND PLUMBING TO | $1 |
| 101013015 | 2023-05-08 | Mechanical / HVAC | 4238 N HAZEL ST | SELF CERT - INTERIOR ALTERATIONS TO ALL FLOORS PER PLAN OF AN EXISTING 2 STORY SINGLE FAMILY HOME WITH BASEMENT. FINISHING AND BUILDOUT OF EXISTING BASEMENT LEVEL | $141,700 |
| 100998469 | 2023-02-23 | Mechanical / HVAC | 3725 N OAKLEY AVE | SPR 2019 CBRC DECONVERT EXISTING 2 DU TO SINGLE FAMILY RESIDENCE WITH REMODELING, NEW REAR 2 STORY FRAME ADDITION, NEW 2 CAR DETACHED GARAGE WITH ROOF TOP DECK AND PERGOLA AS PER P | $150,000 |
| 100992286 | 2022-12-21 | Mechanical / HVAC | 1444 W GEORGE ST | [SELF-CERTIFICAITON PROJECT: NO CHANGE IN USE. EXISTING USE TO REMAIN]RENOVATION OF EXISTING ENCLOSED REAR PORCH, NEW REAR DECK AND REPLACEMENT OF EXISTING COVERED FRONT PORCH IN | $32,000 |
| 100928966 | 2022-10-25 | Mechanical / HVAC | 2335 N COMMONWEALTH AVE | SPR 2019 CBRC: NONSTRUCTURAL INTERIOR ALTERATIONS TO UNIT 1G, ADDITION OF WASHER/ DRYER AND AC (OCC. GROUP R-2; TYPE 1B CONSTUCTION) PER PLANS `**CERTIFIED PLANS CORRECTIONS: COND | $35,000 |
| 100964938 | 2022-08-30 | Mechanical / HVAC | 2640 N RICHMOND ST | SPR 2019 CBRC DECONVERT EXISTING 2 DU TO SINGLE FAMILY RESIDENCE WITH REMODELING, SECOND FLOOR ADDITION, NEW REAR OPEN WOOD DECK AND NEW 2 CAR DETACHED GARAGE WITH ROOF TOP DECK P | $150,000 |
| 100972275 | 2022-08-29 | Mechanical / HVAC | 2719 N TROY ST | SPR 2019 CBRC - CONVERT EXISTING 2 DU TO SINGLE FAMILY RESIDENCE WITH REMODELING, NEW2 CAR DETACHED GARAGE WITH ROOF TOP DECK AND PERGOLA AS PER PLAN.**CERTIFIED CORRECTIONS SUBJEC | $150,000 |
| 100928896 | 2022-08-24 | Mechanical / HVAC | 4608 N VIRGINIA AVE | EXISTING SINGLE FAMILY RESIDENCE, 350 SQUARE FOOT SECOND STORY ADDITION FOR NEW MASTER BATH AND CLOSET, AND 3 SEPARATE SINGLE STORY ADDITIONS TOTALLING 65 SQUARE FEET TO BE INCLUDE | $200,000 |
| 100975321 | 2022-08-23 | Mechanical / HVAC | 2437 N WASHTENAW AVE | SPR 2019 CBC. NEW 2 STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT. NEW FRAME 2 CAR GARAGE WITH ROOF TOP DECK. 250 LF OF 6 FEET HIGH WOOD FENCE. ALL W | $450,000 |
| 100922476 | 2022-07-25 | Mechanical / HVAC | 6227 N NATOMA AVE | PROPOSED 2ND FLOOR ADDITION, REAR DECK/STAIRS, INTERNAL ALTERATIONS OF EXISTING 2 STORY SFR, PER PLANS. | $80,000 |
| 100963830 | 2022-07-22 | Mechanical / HVAC | 1718 N ARTESIAN AVE | PROPOSED 2 STORY SFR W/BASEMENT, 6' WOOD FENCE, AND REAR 2 CAR GARAGE, PER PLANS. | $450,000 |
| 100961246 | 2022-04-28 | Mechanical / HVAC | 1918 W BERWYN AVE | PROPOSED 2 STORY SFR W/BASEMENT, 6' WOOD FENCE, AND REAR 2 CAR GARAGE W/ROOF DECK, PER PLANS. | $350,000 |
| 100950076 | 2022-02-28 | Mechanical / HVAC | 3310 N HARDING AVE | SPR 2019 CBC. NEW 2 STORY (VA CONSTRUCTION, R-5 OCCUPANCY) SINGLE FAMILY RESIDENCE WITH BASEMENT. NEW FRAME 2 CAR GARAGE. 250 LF OF 6 FEET HIGH WOOD FENCE. ALL WORK AS PER PLANS. | $350,000 |
| 100927004 | 2022-02-25 | Mechanical / HVAC | 2056 W BERWYN AVE | REPLACE EXISTING GARAGE WITH PROPOSED 2 CAR GARAGE W/2ND FLOOR COACH HOUSE (PER ADU ORDINANCE) ALONG WITH EXISTING 2 STORY SINGLE FAMILY RESIDENCE, PER PLANS. **CERTIFIED PLANS COR | $225,000 |
| 100942193 | 2021-09-29 | Mechanical / HVAC | 2419 W BELDEN AVE | REVISION TO CHANGE OF HVAC CONTRACTORS PERMIT #100904924 TO ZN HEATING &COLLING INC. | $1 |
| 100927060 | 2021-09-23 | Mechanical / HVAC | 1848 N PULASKI RD | SPR 2019 CBC. NEW 2 STORY FRAME SINGLE FAMILY RESIDENCE WITH BASEMENT, NEW FRONT COVERED OPEN FRAME PORCH & REAR WOOD DECK. NEW FRAME 2 CAR GARAGE. 250 LF OF 6FT HIGH WOOD FENCE. A | $350,000 |
| 100891599 | 2021-08-31 | Mechanical / HVAC | 1347 W WINONA ST | INTERIOR RENOVATIONS OF EXISTING TWO STORY RESIDENCE, INCLUDING KITCHEN, BATHROOMS, REPLACEMENT WINDOWS. | $135,000 |
| 100921809 | 2021-07-01 | Mechanical / HVAC | 4752 S MAPLEWOOD AVE | SPR 2019 CBC. NEW 2 STORY FRAME SINGLE FAMILY RESIDENCE WITH BASEMENT. NEW REAR WOOD DECK WITH THE SECOND FLOOR ABOVE. NEW 250 LF OF 6 FT HIGH WOOD FENCE. NEW DETACHED 2 CAR FRAME | $350,000 |
| 100921810 | 2021-07-01 | Mechanical / HVAC | 4754 S MAPLEWOOD AVE | SPR 2019 CBC. NEW 2 STORY FRAME SINGLE FAMILY RESIDENCE WITH BASEMENT. NEW REAR WOOD DECK WITH THE SECOND FLOOR ABOVE. NEW 250 LF OF 6 FT HIGH WOOD FENCE. NEW DETACHED 2 CAR FRAME | $350,000 |
| 100890548 | 2021-06-08 | Mechanical / HVAC | 3624 W GEORGE ST | NEW 3RD FLOOR ADDITION TO EXISTING 2 STORY FRAME APARTMENT BUILDING. CONVERSION EXIST 2DU INTO 4DU. INTERIOR ALTERATIONS INCLUDING ELECTRICAL, HVAC AND PLUMBING. NEW 3 STORY REAR S | $175,000 |
| 100913669 | 2021-04-23 | Mechanical / HVAC | 2422 W BERTEAU AVE | SPR 2019 CBC - ERECT TWO STORY FRAME SFR WITH BASEMENT. ERECT A DETACHED TWO CAR GARAGE WITH ROOFTOP DECK, OPEN STAIRS, AND ATTACHED FIREPLACE. 220 LF OF 6 FT HIGH WOOD FENCE. ALL | $400,000 |
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 →