COMPANY RECORD · CHICAGO, IL
Mechanical Brothers Co — permit history in Chicago, IL
Mechanical Brothers Co appears on 413 Chicago permit records from 2007 through 2026, most often mechanical / hvac (99.8% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 412 | 99.8% |
| General construction | 1 | 0.24% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 4 |
| 2011 | 15 |
| 2012 | 11 |
| 2013 | 14 |
| 2014 | 16 |
| 2015 | 29 |
| 2016 | 33 |
| 2017 | 43 |
| 2018 | 32 |
| 2019 | 34 |
| 2020 | 28 |
| 2021 | 33 |
| 2022 | 34 |
| 2023 | 26 |
| 2024 | 25 |
| 2025 | 18 |
| 2026 | 15 |
Busiest year on record: 2017, with 43 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 |
|---|---|---|
| D.O.M. Properties Investment Inc | 50 | 2026-03-18 |
| Dom Properties Investment | 37 | 2025-04-08 |
| Stratum Builders, Inc. | 35 | 2026-07-22 |
| S & H Remodeling Incorporated | 33 | 2025-01-31 |
| Chicago Style Renovation Co. | 30 | 2026-03-18 |
| Mcz Development Corp. | 29 | 2026-06-30 |
| Design 1St Of Illinois, Inc. | 24 | 2017-01-18 |
| Ciesla Construction Inc. | 23 | 2023-03-21 |
| Premium Builders, Ltd | 19 | 2025-10-10 |
| Real Restoration Group Inc | 19 | 2021-03-31 |
| Julosk Incorporated | 17 | 2017-09-07 |
| Yad Construction, LLC. | 13 | 2026-04-09 |
143 companies are named alongside Mechanical Brothers Co 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 |
|---|---|
| 3626 N TRIPP AVE | 2026-07-22 |
| 3624 N TRIPP AVE | 2026-07-22 |
| 4040 N SHERIDAN RD | 2026-07-09 |
| 939 W NORTH AVE | 2026-06-30 |
| 1448 W HOOD AVE | 2026-06-22 |
| 508 E PERSHING RD | 2026-04-09 |
| 2310 W AINSLIE ST | 2026-04-08 |
| 223 W ERIE ST | 2026-04-03 |
| 2711 N PULASKI RD | 2026-03-24 |
| 6111 N CENTRAL PARK AVE | 2026-03-23 |
| 1951 N DAYTON ST | 2026-03-18 |
| 848 W GEORGE ST | 2026-03-17 |
| 616 W ARLINGTON PL | 2026-02-19 |
| 3447 W MELROSE ST | 2026-01-26 |
365 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $18,000,000, median $150,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
413 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101083939 | 2026-07-22 | Mechanical / HVAC | 3626 N TRIPP AVE | SC 2019 CBC. ERECT A 2 STORY TYPE VA FRAME SINGLE FAMILY RESIDENCE WITH A BASEMENT, FRONT PORCH AND A DETACHED 2 CAR GARAGE AND 6-FOOT-HIGH WOOD FENCE, AS PER PLANS. R5 OCCUPANCY C | $680,000 |
| 101081688 | 2026-07-22 | Mechanical / HVAC | 3624 N TRIPP AVE | SC 2019 CBC. ERECT A 2 STORY TYPE VA FRAME SINGLE FAMILY RESIDENCE WITH A BASEMENT, FRONT PORCH, DETACHED 2 CAR GARAGE & A SIX-FOOT-HIGH WOOD FENCE AND CONCRETE WALKWAYS, AS PER PL | $625,000 |
| B200460115 | 2026-07-09 | General construction | 4040 N SHERIDAN RD | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 2 ROOFTOP PACKAGED UNIT(ROOFTOP) . ELECTRICAL WORK UNDER THIS PERMIT = NO . LOCATIONS: 0 RESIDENTIAL UNIT(S), 0 NON-RESIDENTIAL UNIT(S), | $8,000 |
| 101083091 | 2026-06-30 | Mechanical / HVAC | 939 W NORTH AVE | SELF-CERT 2019 CBRC: INTERIOR BUILD OUT OF A NEW TJ MAXX RETAIL STORE IN AN EXISTING VACANT SPACE. NEW MECHANICAL, CARPENTRY, PLUMBING, AND ELECTRICAL SCOPE. NO WORK IS PROPOSED | $550,000 |
| 101074349 | 2026-06-22 | Mechanical / HVAC | 1448 W HOOD AVE | REVISION TO #101062937, PROPOSED FRONT DECK/STAIR, REBUILD FRONT/REAR EXTERIOR WALLS, REPLACE REAR STAIRS, AND RENOVATIONS TO THE ATTIC OF AN EXISTING 2 STORY SFR W/BASEMENT, PER P | $60,000 |
| 101080552 | 2026-06-18 | Mechanical / HVAC | 939 W NORTH AVE | SELF-CERT 2019 CBRC: ALTERATIONS TO REMOVE THE EXISTING ALUMINUM AND GLASS CURTAIN WALL FAÇADE AND INSTALL A NEW ALUMINUM AND GLASS CURTAIN WALL AND COMPOSITE METAL PANEL SYSTEM. | $1,200,000 |
| 101079908 | 2026-04-09 | Mechanical / HVAC | 508 E PERSHING RD | INTERIOR WHITE BOX FIT OUT FOR A FUTURE RETAIL TENANT. WORK TO INCLUDE ELECTRICAL, PLUMBING, HVAC AND FINISHES. | $100,000 |
| 101070768 | 2026-04-08 | Mechanical / HVAC | 2310 W AINSLIE ST | SPR 2019 CBRC: ALTERATIONS AND CHANGE OF OCCUPANCY FROM R-3 TO R-2 OF EXISTING 2-STORY BUILDING WITH BASEMENT AND UNFINISHED ATIC RECTORY BUILDING TO CONVERT TO A 9 DWELLING UNITS | $1,000,000 |
| 101076269 | 2026-04-03 | Mechanical / HVAC | 223 W ERIE ST | DDS 2019 CBC: WORK IS FOR CONVERSION OF 7-STORY WITH BASEMENT MASONRY, STEEL FRAME, AND HEAVY TIMBER TYPE IV CONSTRUCTION MIXED USE RETAIL / OFFICE BUILDING TO A RETAIL / RESIDENTI | $500,000 |
| 101080583 | 2026-03-24 | Mechanical / HVAC | 2711 N PULASKI RD | INTERNAL RENOVATIONS TO CONVERT EXISTING GROUND FLOOR OFFICE SPACE, NEW BREAKROOM AND UNISEX RESTROOM IN A 2 STORY OFFICE BUILDING TO A NEW OPEN OFFICE USE, PER PLANS. | $50,000 |
| 101073831 | 2026-03-23 | Mechanical / HVAC | 6111 N CENTRAL PARK AVE | SPR 2019 CBC: NEW 2 STORY BRICK & FRAME TYPE VA CONSTRUCITON SINGLE FAMILY RESIDENCE INCLUDING ALL MECHANICAL, ELECTRICAL & PLUMBING WORK. EXISTING RS-2 ZONING TO REMAIN RS-2. (OC | $750,000 |
| 101079594 | 2026-03-18 | Mechanical / HVAC | 1951 N DAYTON ST | SELF CERTIFIED 2019 CBC. DECONVERT EXISTING 3 STORY WITH BASEMENT MASONRY 3DU INTO SINGLE FAMILY RESIDENCE, WITH INTERIORREHABILITATION, NEW ROOF TOP DECK WITH STAIR ENCLOSURE, NEW | $1,000,000 |
| 101080675 | 2026-03-17 | Mechanical / HVAC | 848 W GEORGE ST | SELF-CERTIFIED - 2019 CBRC - INTERIOR REHABILITATION OF EXISTING MULTI-UNIT RESIDENTIAL BUILDINGWITH BASEMENT, NEW REAR OPEN WOOD PORCH REPLACEMENT (TYPE 3A CONSTRUCTION, R2 OCCU | $100,000 |
| 101072836 | 2026-02-19 | Mechanical / HVAC | 616 W ARLINGTON PL | SPR 2019 CBRC. REUSE OF AN EXISTING 4-STORY + BASEMENT FORMER HOTEL BUILDING INTO A 36 DWELLING UNIT MULTI-UNIT RESIDENTIAL BUILDING AS PER PLANS. TYPE III-A CONSTRUCTION WITH A RE | $25,000 |
| 101077133 | 2026-01-26 | Mechanical / HVAC | 3447 W MELROSE ST | SPR 2019 CBRC: INTERIOR REMODELING TO EXISTING 2-UNIT FRAME RESIDENCE TO INCLUDE WORK IN GROUND FLOOR LEVEL ONLY INCLUDING NEW FRAMING, ELECTRCAL, PLUMBING, HVAC, CONCRETE SLAB, FO | $175,000 |
| 101071083 | 2025-11-25 | Mechanical / HVAC | 1934 N DAYTON ST | SPR CBC 2019; EXISTING 3 STORY MASONRY SINGLE FAMILY HOME WITH BASEMENT.COMPLETE GUT RENOVATION OF 2ND FLOOR. RECONFIGURE EXISTING PRIMARY BATHROOM AND BEDROOMS. NEW WINDOW OPENING | $225,000 |
| 101068820 | 2025-11-12 | Mechanical / HVAC | 940 W LELAND AVE | DDS CBC 2019: FULL BUILDING PERMIT FOR A 5 STORY 32 UNIT RESIDENTIAL BUILDING (INCL. 6 EFFICIENCY UNITS) WITH 6 VEHICULAR PARKING SPACES, 40 BICYCLE PARKING SPACES, AND TENANT AMEN | $9,500,000 |
| 101050956 | 2025-10-27 | Mechanical / HVAC | 210 S HOYNE AVE | SPR 2019 CBC: FULL BUILDING PERMIT FOR 2 STORY + BASEMENT, NEW SINGLE FAMILY HOUSE WITH 2 OUTDOOR PARKING SPACES (CONC. PARKING PAD) (OCCUPANCY GROUPS R-5 TYPE V-A CONSTRUCTION) ( | $165,000 |
| 101065641 | 2025-10-10 | Mechanical / HVAC | 965 E 62ND ST | SC 2019 CBC: ERECT A 4 STORY, 4 DWELLING UNIT TYPE IIIA MASONRY BUILDING WITH AN OCCUPIABLE ROOF DECK, FRONT DECKS AND TWO REAR 2 CAR DETACHED GARAGES AS PER PLANS. R2 OCCUPANCY CL | $1,200,000 |
| 101067665 | 2025-07-21 | Mechanical / HVAC | 120 W ILLINOIS ST | DDS 2019 CBRC: RENOVATIONS TO EXISTING 7-STORY BUILDING. MODIFY FIRST FLOOR ENTRY TO BE ACCESSIBLE PER PLANS. CONVERT 2ND-7TH FLOORS TO 36 DWELLING UNITS (R-2) PER PLANS. CONSTRUCT | $6,500,000 |
| 101061491 | 2025-07-09 | Mechanical / HVAC | 4621 N CLARK ST | SC 2019 CBC; DE-CONVERT EXIST. 2 STORY MULTI-USE BUILDING TO ALL COMMERCIAL. 2ND FLOOR DWELLING UNIT TO BE CONVERTED TO OFFICES. ADD RESTROOM AND PREP AREA IN EXISTING ACCESSORY | $25,000 |
| 101064692 | 2025-06-05 | Mechanical / HVAC | 5249 N AUSTIN AVE | SPR 2019 CBRC: EXISTING AND PROPOSED R-5 SINGLE FAMILY RESIDENCE - CONVERT UNFINISHED SECOND FLOOR INTO TWO BEDROOMS AND BATHROOM, TO INCLUDE STRUCTURAL MODIFICATIONS, ELECTRICAL, | $200,000 |
| 101068082 | 2025-05-29 | Mechanical / HVAC | 11248 S MICHIGAN AVE | B1-3. EXISTING 1 STORY BRICK AND TERRACOTTA BUSINESS BUILDING. INTERIOR FINISH UPDATES, NEW KITCHEN EQUIPMENT, NEW BACK OF HOUSE AND STORAGE LAYOUT. REPLACE STOREFRONT ENTRANCE, EX | $740,000 |
| 101047147 | 2025-05-09 | Mechanical / HVAC | 3246 W BRYN MAWR AVE | DDS 2019 CBRC: ADD NEW 4 STORY 30 D.U. TO EXISTING ONE-STORY FRONT FAÇADE, 1ST FLOOR RETAIL, 27 CAR GARAGE AT 1ST FLOOR, DECKS AT 2ND/3RD/4TH FLOORS, ROOFTOP DECK, ROOFTOP STAIR EN | $4,591,000 |
| 101067909 | 2025-05-01 | Mechanical / HVAC | 4942 N KILPATRICK AVE | SELF CERTIFIED 2019 CBC. ERECT 2ND FLOOR FRAME ADDITION TO EXISTING 1-1/2 STORY WITH BASEMENT SINGLE FAMILY RESIDENCE, INTERIOR REMODELING, NEW REAR OPEN WOOD DECK & NEW 2 CAR DETA | $100,000 |
| 101065276 | 2025-04-23 | Mechanical / HVAC | 2711 N PULASKI RD | RECONFIGURATION OF EXISTING 2ND FLOOR OFFICE SPACE IN A 2 STORY OFFICE BUILDING, PER PLANS. | $90,000 |
| 101064593 | 2025-04-08 | Mechanical / HVAC | 5354 N SHERIDAN RD | *** DIRECT DEVELOPER SERVICES*** CBC 2019 REVISION TO PREVIOUSLY ISSUED PERMIT #100960694 OF A NEW CONSTRUCTION FIVE STORY RESIDENTIAL BUILDING WITH 50 DWELLING UNITS, TO ADDRESS | $500,000 |
| 101060930 | 2025-03-24 | Mechanical / HVAC | 3245 S CALUMET AVE | APP NO# 101060930 3245-3259 S CALUMET AVE: PLANS FOR THIS PERMIT ARE SUBMITTED UNDER APP # 101060929 3244 S KING DR SELF-CERT 2019 CBC: FULL BUILDING PERMIT FOR 3 STORY 7 TOWNHOM | $4,099,650 |
| 101060929 | 2025-03-21 | Mechanical / HVAC | 3244 S DR MARTIN L KING JR DR | SELF-CERT 2019 CBC: FULL BUILDING PERMIT FOR 3 STORY 7 TOWNHOMES WITH FULL NFPA 13 R SPRINKLER SYSTEM, 1 CAR GARAGE AT BASEMENT FOR EACH TOWNHOME, BALCONY AT 2ND STORY, ROOFTOP DEC | $4,104,300 |
| 101039051 | 2025-03-19 | Mechanical / HVAC | 6345 N MONTICELLO AVE | SPR 2019 CBRC; ALTERATION AND CHANGE OF OCCUPANCY FOR VACANT GROUND LEVEL BUSINESS SPACES WITH 4 SLEEPING UNITS IN 3-STORY BUILDING (EXPANSION OF EXISTING GROUP HOUSING/DORMITORY U | $750,000 |
| 101050955 | 2025-03-18 | Mechanical / HVAC | 212 S HOYNE AVE | SPR 2019 CBC: AFFORDABLE -FULL BUILDING PERMIT FOR 2 STORY + BASEMENT, SINGLE FAMILY HOUSE WITH 2 OUTDOOR PARKING SPACES (CONC. PARKING PAD) (OCCUPANCY GROUPS R-5 TYPE V-A CONSTRUC | $165,000 |
| 101064871 | 2025-03-06 | Mechanical / HVAC | 218 S WESTERN AVE | SELF-CERT 2019 CBRC - INTERIOR NON-STRUCTURAL RENOVATION TO AN EXISTING 4-STORY RESIDENTIAL BUILDING.EXISTING BUILDING HEIGHT: 4-STORY, 38'-2"EXISTING NUMBER OF DWELLING UNITS: 8 | $1,300,000 |
| 101062937 | 2025-01-31 | Mechanical / HVAC | 1448 W HOOD AVE | INTERIOR REMODELING AND ALTERATION OF AN EXISTING TWO STORY SINGLE FAMILY HOME WITH BASEMENT (OCCUPANCY GROUP R-5, CONSTRUCTION TYPE 5B) | $200,000 |
| 101061055 | 2024-12-09 | Mechanical / HVAC | 1927 N CLEVELAND AVE | SC CRBC 2019; EXISTING 3 STORY MASONRY SINGLE FAMILY HOME WITH BASEMENT.COMPLETE GUT RENOVATION OF 3RD FLOOR. RECONFIGURE EXISTING PRIMARY BATHROOM AND BEDROOM. REPAIR EXISTING | $150,000 |
| 101060149 | 2024-12-05 | Mechanical / HVAC | 503 E PERSHING RD | DDS 2019 CBRC: REVISION TO EXISTING PERMIT 101023432 TO RELOCATE PORTION OF FRONT WALL 7'-0" SOUTH, RELOCATE ELECTRICAL OUTLETS, MODIFY DUCTWORK, ADD STEEL BEAM AT 2ND FLOOR IN EXI | $80,000 |
| 101049456 | 2024-12-02 | Mechanical / HVAC | 5016 W LAWRENCE AVE | SPR 2019 CBRC: LEGALIZE (1) D.U. ON 2-STORY FRAME MULTI FAMILY BLDG WITH INT. RENOV. TO EXISTING (3) D.U., TOTAL (4) D.U.; PER PLANS. (OCC. GRO. R-2; CONST. TYPE V-A) | $150,000 |
| 101060798 | 2024-11-15 | Mechanical / HVAC | 1219 W MADISON ST | SPR 2019 CBC - 2ND. FLOOR CONVERSION OF COMMERCIAL USE (B) INTO A RESIDENTIAL UNIT (R2) IN EXISTING 2-STY. MIXED USE (M & B) BUILDING W/ BASEMENT (TYPE 3A CONSTRUCTION) ( **CON | $150,000 |
| 101060109 | 2024-11-01 | Mechanical / HVAC | 2200 N ASHLAND AVE | INTERIOR TENANT REMODEL AND PARTIAL STOREFRONT IMPROVEMENT IN AN EXISTING BUILDING TENANT SPACE 'A' TO BUILD OUT A CANNABIS DISPENSARY, NO PROPOSED STRUCTURAL CHANGES. | $300,000 |
| 101061059 | 2024-10-25 | Mechanical / HVAC | 1927 N CLEVELAND AVE | SC CRBC 2019; NON-STRUCTURAL INTERIOR PREPARATORY DEMOLITION. EXISTING 3 STORY MASONRY SINGLE FAMILY HOME. REMOVAL OF INTERIOR FINISHES, INTERIOR DOORS, TRIM, DRYWALL WALLS AND C | $20,000 |
| 101060557 | 2024-10-22 | Mechanical / HVAC | 5028 W BERWYN AVE | SELF CERT 2019 CRBC: INTERIOR GUT REMODEL OF EXISTING 2-STORY, VA FRAME, 25' HT. SINGLE-FAMILY RESIDENCE INCLUDING STRUCTURAL REPAIRS, BASEMENT DIG DOWN AND NEW (158) SQ. FT. REAR | $345,000 |
| 101058448 | 2024-10-07 | Mechanical / HVAC | 2212 W CULLOM AVE | SELF CERTIFIED 2019 CBC. ERECT 2 STORY WITH BASEMENT FRAME SINGLE FAMILY RESIDENCE, FRONT WOOD STAIRS, 2 CAR DETACHED GARAGE WITH ROOF TOP DECK, 6 FT WOOD FENCE AS PER PLAN. | $300,000 |
| 101058153 | 2024-09-18 | Mechanical / HVAC | 508 E PERSHING RD | SELF-CERT: INTERIOR TENANT BUILD-OUT IN A GRAY SHELL SPACE FOR A NEW FOOD SERVICE BUISNESS. SCOPE OF WORK INCLUDES PLUMBING, HVAC, ELECTRICAL, FRAMING, FINISHES, & FFE. NO EXTERIOR | $552,000 |
| 101053046 | 2024-08-27 | Mechanical / HVAC | 2200 N ASHLAND AVE | SC 2019 CBRC: INTERIOR TENANT BUILDOUT OF "TENANT SPACE B" AND PRIVATE EXTERIOR DOG PARK AMENITY IN EXISTING TYPE IB BUILDING. CBC OCCUPANCY GROUP B/M. | $600,000 |
| 101026572 | 2024-08-26 | Mechanical / HVAC | 1001 N MILWAUKEE AVE | SPR CBC 2019 EXISTING 4-STORY MULTI-FAMILY RESIDENTIAL OCCUPANCY ON 2ND &D 3RD FLRS (TOTAL OF 8 EXISTING DWELLING UNITS), COMMERCIAL/BUSINESS OFFICE SPACE ON THE 4TH FLR & 1ST FLR | $300,000 |
| 101042676 | 2024-08-13 | Mechanical / HVAC | 6521 S BLACKSTONE AVE | DDS 2019 CBC: FULL BUILDING PERMIT FOR 4 STORY 14 D.U. BUILDING, 6 CAR GARAGE AT 1ST FLOOR, 8 EXTERIOR PARKING SPACES ON CONCRETE PAD, ROOFTOP STAIR ENCLOSURE, ELEVATOR OVER-RUN, R | $2,910,150 |
| 101043811 | 2024-07-22 | Mechanical / HVAC | 6453 S BELL AVE | SPR 2019 CBRC: INTERIOR AND EXTERIOR ALTERATIONS TO EXISTING 1 STORY MANUFACTURING BUILDING TO CONVERT TO DAYCARE USE. WORK TO INCLUDE DEMO, LANDSCAPE, SITE WORK, EXTERIOR STOREFRO | $1,700,000 |
| 101049725 | 2024-07-10 | Mechanical / HVAC | 3227 W 61ST ST | SELF-CERT 2019 CBC: ERECT 1-STORY WITH BASEMENT FRAME SINGLE FAMILY RESIDENCE; NEW REAR AND FRONT WOOD PORCH; NEW 2-CAR DETACHED MASONRY GARAGE; 6FT WOOD FENCE AS PER PLAN. | $325,000 |
| 101046225 | 2024-06-25 | Mechanical / HVAC | 451 E PERSHING RD | DDS 2019 CBRC: REVISIONS TO EXISTING PERMIT 100969128 AND 101013509 TO ADD 3 BEAMS IN 2ND FLOOR CEILING, RELOCATE NORTH WALL (FRONT) AT 3RD/4TH/5TH/ROOF, REMOVE 3 FRONT DECKS AT 3R | $80,000 |
| 101049132 | 2024-06-17 | Mechanical / HVAC | 3635 W DEVON AVE | DDS 2019 CBRC: INTERIOR ALTERATION TO EXISTING GROUND LEVEL SANCTUARY AREA IN 1 STORY WITH BASEMENT SCHOOL BUILDING WITH CHANGE OF HVAC DESIGN IN SAME AREA OR WORK. INCLUDES ALTERA | $950,000 |
| 101048611 | 2024-05-13 | Mechanical / HVAC | 6245 N ROCKWELL ST | INTERIOR REMODELING OF SINGLE FAMILY RESIDENCE ,REPAIR/UPGRADE ELECTRICAL, REPAIR AS NEEDED PLUMBING, REPAIR EXISTING DRYWALL, KITCHEN AND BATHROOM REMODELING, NEW HVAC SYSTEM | $110,000 |
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 →