COMPANY RECORD · CHICAGO, IL
Interior Alterations — permit history in Chicago, IL
Interior Alterations appears on 886 Chicago permit records from 2006 through 2026, all of them general construction.
Permit categories
| Category | Permits | Share |
|---|---|---|
| General construction | 886 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2006 | 77 |
| 2007 | 53 |
| 2008 | 61 |
| 2009 | 50 |
| 2010 | 46 |
| 2011 | 55 |
| 2012 | 39 |
| 2013 | 64 |
| 2014 | 56 |
| 2015 | 76 |
| 2016 | 51 |
| 2017 | 37 |
| 2018 | 51 |
| 2019 | 41 |
| 2020 | 22 |
| 2021 | 16 |
| 2022 | 33 |
| 2023 | 18 |
| 2024 | 14 |
| 2025 | 13 |
| 2026 | 13 |
Busiest year on record: 2006, with 77 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 |
|---|---|---|
| Johns Plumbing, Inc. | 253 | 2026-07-27 |
| Competitive Piping Systems | 214 | 2026-08-14 |
| Hardt Electric Inc | 173 | 2019-11-14 |
| Gehrett Plumbing, Inc. | 161 | 2026-08-14 |
| Admiral Heating Vent | 157 | 2024-01-16 |
| Air Comfort Corporation | 103 | 2019-10-04 |
| Current Communications Corp. | 85 | 2026-06-29 |
| S & M Electric, Inc. | 82 | 2021-12-02 |
| Prime Electric Co., Inc. | 75 | 2020-03-05 |
| Pl10249-Gehrett Plumbing., Inc | 66 | 2008-11-26 |
| Rex Elect. & Technologies LLC | 60 | 2022-12-14 |
| Klass Electric Company, Inc. | 58 | 2020-05-11 |
148 companies are named alongside Interior Alterations 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 |
|---|---|
| 410 N MICHIGAN AVE | 2026-08-14 |
| 600 W CHICAGO AVE | 2026-07-28 |
| 4770 S KEDZIE AVE | 2026-06-29 |
| 101 N WACKER DR | 2026-06-25 |
| 550 W JACKSON BLVD | 2026-06-24 |
| 401 N MICHIGAN AVE | 2026-06-24 |
| 70 E WALTON ST | 2026-06-24 |
| 20 N WACKER DR | 2026-05-20 |
| 444 N MICHIGAN AVE | 2026-01-26 |
| 209 S LA SALLE ST | 2025-10-31 |
| 111 S WACKER DR | 2025-10-07 |
| 203 N LA SALLE ST | 2025-07-01 |
| 111 E ERIE ST | 2025-05-19 |
| 200 S WACKER DR | 2025-05-12 |
136 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $4,900,000, median $125,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
886 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 101084850 | 2026-08-14 | General construction | 410 N MICHIGAN AVE | SELFCERT 2019 CBRC - INTERIOR ALTERATIONS TO EXISTING 5,002 SF OFFICE SPACE ON THE 7TH FLOOR - SUITE N700. SCOPE INCLUDES ALTERATIONS TO MECHANICAL, ELECTRICAL, AND PLUMBING. NO CH | $210,000 |
| 101084879 | 2026-07-28 | General construction | 600 W CHICAGO AVE | SELF-CERT 2019 CBRC. INTERIOR ALTERATION OF EXISTING CORRIDORS AND RESTROOMS ON THE 3RD FLOOR OF AN 8 STORY COMMERCIAL BUILDING. NO CHANGE IN OCCUPANCY (OCCUPANCY GROUP B; TYPE 1A | $351,750 |
| 101084853 | 2026-07-27 | General construction | 410 N MICHIGAN AVE | SELFCERT 2019 CBRC - INTERIOR ALTERATIONS TO EXISTING 6,314 SF OFFICE SPACE ON THE 6TH FLOOR - SUITE N650. SCOPE INCLUDES ALTERATIONS TO MECHANICAL, ELECTRICAL, AND PLUMBING. NO CH | $210,000 |
| 101085025 | 2026-06-29 | General construction | 4770 S KEDZIE AVE | SELF-CERT 2019 CBRC: INTERIOR RENOVATION TO AN EXISTING 1-STORY BUILDING FOR THE EXISTING TENANT, CITY OF CHICAGO DEPARTMENT OF FINANCE OFFICE SPACE. WORK INCLUDES INTERIOR ARCHITE | $350,000 |
| 101084278 | 2026-06-25 | General construction | 101 N WACKER DR | *SELF CERTIFICATION 2019 CBRC*: INTERIOR *DEMO ONLY* WORK FOR SUITE 300 AS PER PLANS. NO CHANGE IN USE. B-BUSINESS AND CONSTRUCTION TYPE IA. | $134,000 |
| B200472955 | 2026-06-24 | General construction | 550 W JACKSON BLVD | SCOPE: NONSTRUCTURAL INTERIOR ALTERATION TO EXISTING OFFICE AREAS TO INCLUDE NEW CEILING TILE, MILLWORK, RELOCATION OF LIGHT FIXTURES, AND DUCTWORK.LOCATIONS: 0 RESIDENTIAL UNIT | $75,000 |
| 101084617 | 2026-06-24 | General construction | 401 N MICHIGAN AVE | SELF CERT 2019 CBRC - TENANT BUILDOUT OF 1,129 SQFT FOR BUSINESS OFFICE ON THE 15TH FLOOR, INCLUDING ALTERNATIONS TO MECHANICAL AND ELECTRICAL. (OCCUPANCY GROUP B; TYPE IA CONSTRUC | $35,000 |
| 101083361 | 2026-06-24 | General construction | 70 E WALTON ST | DEMOLITION OF EXISTING VACANT RETAIL JEWELRY SPACE. BUILD-OUT TO FOLLOW BY SEPARATE PERMIT. | $50,000 |
| B200470521 | 2026-05-20 | General construction | 20 N WACKER DR | SCOPE: NON-STRUCTURAL INTERIOR ALTERATION TO EXISTING OFFICE SUITE 2620 FOR NEW OPEN HUDDLE AND CAFE AREA, WELLNESS ROOM, AND ENTRY MODIFICATIONS. SCOPE INCLUDES DEMO, NEW NON-LOAD | $92,000 |
| 101080900 | 2026-04-23 | General construction | 600 W CHICAGO AVE | SELF-CERT 2019 CBRC. INTERIOR ALTERATION OF EXISTING CORRIDORS AND RESTROOMS ON THE 7TH FLOOR OF AN EXISTING OFFICE SPACE IN AN 8 STORY COMMERCIAL BUILDING. NO CHANGE IN OCCUPANCY | $370,580 |
| 101080903 | 2026-04-06 | General construction | 600 W CHICAGO AVE | SELF-CERT 2019 CBRC. INTERIOR ALTERATION OF EXISTING CORRIDORS AND RESTROOMS ON THE 8TH FLOOR OF AN EXISTING OFFICE SPACE IN AN 8 STORY COMMERCIAL BUILDING. NO CHANGE IN OCCUPANCY | $225,925 |
| 101076366 | 2026-01-26 | General construction | 444 N MICHIGAN AVE | SELF-CERT 2019 CBRC: INTERIOR DEMOLITION OF NON-LOAD BEARING PARTITIONS IN AN EXISTING OFFICE SUITE 1400 AS PER PLANS. WORK TO ALSO INCLUDE DEMO OF FINISHES, CEILINGS, DOORS, LIGHT | $52,200 |
| B200455810 | 2026-01-25 | General construction | 20 N WACKER DR | SCOPE: NONSTRUCTURAL INTERIOR ALTERATION OF EXISTING OFFICE, REPLACE FLOOR FINISHES AND MILLWORK, MECHANICAL, ELECTRICAL AND PLUMBING. LOCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESID | $60,000 |
| 101075988 | 2025-11-24 | General construction | 600 W CHICAGO AVE | SELF-CERT 2019 CBRC. INTERIOR ALTERATION OF SUITE 110, AN EXISTING COMMERCIAL OFFICE SPACE ON THE FIRST FLOOR IN AN 8 STORY COMMERCIAL BUILDING. CHANGE IN OCCUPANCY FROM BUSINESS ( | $125,475 |
| B200448008 | 2025-10-31 | General construction | 209 S LA SALLE ST | SCOPE: NONSTRUCTURAL INTERIOR ALTERATION OF SUITE 120; REPLACE DRYWALL, LIGHTS, DOORS, MECHANICAL, ELECTRICAL AND PLUMBING.L OCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESIDENTIAL UNIT | $175,000 |
| 101069960 | 2025-10-07 | General construction | 111 S WACKER DR | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS IN EXISTING OFFICE BUILDING ON THE 40TH FLOOR TO EXPAND OFFICE SUITE 4025 BY 5,757 SQFT, NEW PARTITIONS, DOORS, CEILINGS, LIGHTING, MILLWO | $315,000 |
| B200430588 | 2025-07-01 | General construction | 203 N LA SALLE ST | SCOPE: NONSTRUCTURAL INTERIOR ALTERATION OF EXISTING OFFICE, TO INCLUDE NEW PARTITIONS, ELECTRICAL AND DUCTWORK RECONFIGURATION. LOCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESIDENTIAL | $95,000 |
| 101068311 | 2025-05-28 | General construction | 101 N WACKER DR | CONSTRUCT COMMON CORRIDOR, TENANT DEMISING WALLS AND RENOVATE BATHROOMS, 2,760 SF ON 21ST FLOOR OF FULLY SPRINKLERED 23 STORY HI-RISE BUILDING, CONSTRUCTION TYPE: TYPE 1A; OCCUP | $400,000 |
| 101068676 | 2025-05-19 | General construction | 111 E ERIE ST | SELF-CERT 2019 CBRC. INTERIOR ALTERATION OF AN EXISTING OFFICE SPACE ON FLOORS 3-7 OF AN EXISTING 20 STORY COMMERCIAL BUILDING. NO CHANGE IN USE, NO CHANGE IN OCCUPANCY. (OCCUPANCY | $2,816,625 |
| 101066758 | 2025-05-12 | General construction | 200 S WACKER DR | SELF-CERT 2019 CBRC: INTERIOR RENOVATION TO AN EXISTING OFFICE SUITE 600 FOR AN EXPANSION AS PER PLANS. WORK TO INCLUDE DEMOLITION, NEW PARTITIONS, DOORS AND HARDWARE, LIGHTING, ME | $348,000 |
| B200420628 | 2025-04-24 | General construction | 20 N WACKER DR | NONSTRUCTURAL INTERIOR ALTERATION TO INCLUDE INTERIOR DEMO, DEMO A WALL BETWEEN SUITES 4114 AND 4120, NEW PARTITIONS, LIGHTING, DOORS AND HARDWARE, CEILINGS, MECHANICAL, ELECTRICAL | $75,000 |
| B200420626 | 2025-04-17 | General construction | 20 N WACKER DR | NONSTRUCTURAL INTERIOR ALTERATION IN AN EXISTING OFFICE TENANT SUITE 3000. SCOPE OF WORK TO INCLUDE INTERIOR DEMOLITION, NEW PARTITIONS, LIGHTING, DOORS AND HARDWARE, CEILINGS, MEC | $63,000 |
| 101066220 | 2025-04-01 | General construction | 400 N MICHIGAN AVE | SC 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 15TH FLOOR OFFICE SPACE. NO CHANGE TO EXISTING USE. (OCCUPANCY B / CONSTRUCTION TYPE 1A) | $101,929 |
| 101065325 | 2025-02-25 | General construction | 203 N LA SALLE ST | SELF-CERT 24TH FLOOR - INTERIOR RENOVATION OF COMMON AREA FINISHES, RESTROOM FINISHES, MILLWORK, & LIGHTING. INCLUDES CONSTRUCTION OF SINGLE USER RESTROOM. PROJECT INCLUDES ASSOCIA | $305,000 |
| 101063963 | 2025-01-21 | General construction | 203 N LA SALLE ST | SELF-CERT 17TH FLOOR - CONSTRUCT TENANT DEMISING WALLS AND COMMON AREA CORRIDOR. NEW CORRIDOR, ELEVATOR LOBBY, AND COMMON AREA RESTROOM FINISHES, MILLWORK, & LIGHTING. PROJECT INCL | $425,000 |
| 101063578 | 2025-01-02 | General construction | 111 E ERIE ST | SELF-CERT 2019 CBRC. INTERIOR PARTIAL DEMOLITION OF EXISTING CEILINGS AND LIGHT FIXTURES DUE TO FLOOD DAMAGE FROM TENANT SPACE ABOVE. WORK TO BE COMPLETED IN AN EXISTING OFFICE SPA | $120,713 |
| 101060837 | 2024-10-16 | General construction | 30 S WELLS ST | SELF-CERT: INTERIOR ALTERATIONS TO 6TH FLOOR TO ADD SUPPLEMENTAL BATHROOMS TO EXISTING OFFICE SPACE. CONVERT EXISTING BREAK ROOM INTO MEN'S AND WOMEN'S TOILET ROOM. B-BUSINESS OCCU | $238,018 |
| B200398366 | 2024-10-02 | General construction | 30 S WELLS ST | NONSTRUCTURAL INTERIOR ALTERATION TO 6TH FLR OFFICE SPACE TO RELOCATE ENTRY VESTIBULE AND STORAGE ROOM. LOCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESIDENTIAL UNIT(S), 6TH FLOOR TENAN | $100,000 |
| 101055534 | 2024-08-27 | General construction | 101 N WACKER DR | SELF-CERT 2019 CBC: INITIAL TENANT BUILDOUT OF 16,599 SF OF COMMERCIAL OFFICE SPACE ON THE 18TH FLOOR (OCCUPANCY GROUP B, TYPE IA CONSTRUCTION). | $1,800,000 |
| 101053656 | 2024-08-26 | General construction | 101 N WACKER DR | INTERIOR DEMOLITION OF NON-LOAD BEARING PARTITIONS, FIXTURES AND FINISHES AT 22ND & 23RD FLOORS, AND REMODELING OF (2) MENS AND (2) WOMEN¿S EXISTING TOILET ROOMS ON EACH FLOOR, CON | $300,000 |
| B200024415 | 2024-08-16 | General construction | 20 N WACKER DR | SCOPE: NONSTRUCTURAL INTERIOR ALTERATION TO REPLACE PARTITIONS, FINISHES, DOORS, SIDELITES, ELECTRICAL, MECHANICAL AND PLUMBING.LOCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESIDENTIAL | $55,000 |
| 101053657 | 2024-07-30 | General construction | 101 N WACKER DR | INTERIOR DEMOLITION OF NON-LOAD BEARING PARTITIONS, FIXTURES AND FINISHES; CONSTRUCTION OF CORRIDOR, ELEVATOR LOBBY FINISHES AND TENANT DEMISING WALLS ON 18TH FLOOR; 18,300 SF; CON | $150,000 |
| B200023903 | 2024-07-25 | General construction | 120 S RIVERSIDE PLZ | REVISION TO PERMIT #101048818 CHANGE GENERAL AND PLUMBING CONTRACTORS | |
| B200021365 | 2024-06-26 | General construction | 230 W MONROE ST | REVISION TO PERMIT#101043047 CHANGE GENERAL AND ELECTRICAL CONTRACTOR | |
| B200014496 | 2024-04-22 | General construction | 203 N LA SALLE ST | SCOPE: NONSTRUCTURAL INTERIOR ALTERATION.LOCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESIDENTIAL UNIT(S), SUITE 1850. INTERIOR OFFICE RENO TO STE 1850 TO CREATE 2 OFFICE ROOMS INTO 1 L | $41,000 |
| 101047016 | 2024-04-08 | General construction | 435 N MICHIGAN AVE | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO A FIRST FLOOR TO BUILD A WALL TO CREATE TWO SUITES 108A AND 108B AND RELATED MECHANICAL, ELECTRICAL, AND PLUMBING AS PER PLANS. NO STRU | $162,000 |
| B200010049 | 2024-03-06 | General construction | 625 N MICHIGAN AVE | SCOPE: NONSTRUCTURAL INTERIOR ALTERATION TO 1464 SQ FT OF EXISTING OFFICE TENANT TO INCLUDE NEW PARTITIONS, ELECTRICAL AND MECHANICALS, NO STRUCTURAL WORK OR PLUMBING PER ARCHITEC | $92,000 |
| 101043366 | 2024-02-21 | General construction | 311 S WACKER DR | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS IN EXISTING OFFICE BUILDING ON THE 55TH FLOOR, SUITE 5520 AS PER PLANS (OCCUPANCY GROUP B; CONSTRUCTION TYPE 1A) | $60,000 |
| 101043354 | 2024-02-06 | General construction | 822 W WASHINGTON BLVD | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO 2ND FLOOR OFFICE SPACE TO INCLUDE NEW PRIVATE OFFICES, OPEN OFFICE AREAS, AND CALL ROOMS. MODIFICATIONS TO EXISTING MECHANICAL AND ELEC | $250,000 |
| 101032108 | 2024-01-16 | General construction | 155 N MICHIGAN AVE | SELF-CERT 2019 CBRC: NON-STRUCTURAL INTERIOR DEMOLITION, INCLUDING REMOVAL OF MEP SYSTEMS, IN EXISTING OFFICE BUILDING ON THE 2ND, 3RD FLOORS, AND BASEMENT FOR EXISTING SINGLE DATA | $390,000 |
| 101032896 | 2023-12-27 | General construction | 155 N WACKER DR | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO EXISTING 4TH AND 7TH FLOOR OFFICE SPACES (SUITE 400 & SUITE 700). NO CHANGE TO EXISTING USE. (OCCUPANCY B / CONSTRUCTION TYPE 1A) | $80,000 |
| 101038873 | 2023-12-20 | General construction | 900 N KINGSBURY ST | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS OF EXISTING OFFICE SPACE FOR BUSINESS USE, RESEARCH AND DEVELOPMENT LAB, ON THE 5TH FLOOR OF AN 11 STORY BUILDING. (CONSTRUCTION TYPE 1A, | $2,975 |
| 101038068 | 2023-11-14 | General construction | 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 |
| 101033577 | 2023-11-13 | General construction | 600 W CHICAGO AVE | SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS OF EXISTING OFFICE SPACE FOR BUSINESS USE, RESEARCH AND DEVELOPMENT LAB, ON THE 5TH FLOOR OF AN 8 STORY BUILDING. (CONSTRUCTION TYPE 1A, O | $70,910 |
| 101037243 | 2023-11-10 | General construction | 33 N LA SALLE ST | CHANGE OF PLUMBING CONTRACTOR PERMIT #101026601 TO JOHNS PLUMBING INC. | $75 |
| 101037278 | 2023-11-06 | General construction | 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 |
| 101034150 | 2023-10-06 | General construction | 203 N LA SALLE ST | INTERIOR ALTERATIONS - LEVEL 2, TO EXISTING 27TH FLOOR MEN'S AND WOMEN'S RESTROOMS, AND FABRICATION OF (1) SINGLE-USER ADA COMPLIANT RESTROOM. THERE IS NEW ELECTRICAL AND PLUMBING | $229,522 |
| 101027372 | 2023-09-11 | General construction | 100 N RIVERSIDE PLZ | SPR 2019 CBRC: REMOVE EXISITNG EXIT DOOR AT THE NORTH END OF THE MAIN LOBBY LEVEL AND REPLACE WITH NEW CURTAIN WALL WITH KNEE WALL AS PER PLANS. (OCCUPANCY GROUP B; TYPE 1A CONSTRU | $100,000 |
| 101026601 | 2023-09-07 | General construction | 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 |
| 101027011 | 2023-08-10 | General construction | 142 E ONTARIO ST | CHANGE OF PLUMBING CONTRAACTOR PERMIT #101021007 TO GEHRETT PLUMBING. | $75 |
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 →