Additions and square-footage expansions permitted in Chicago. These are the largest residential projects a homeowner undertakes and carry the highest declared values.
25 permits listed
$22,168,078 declared value
Chicago Data Portal source
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Recent permits
5207 S HARPER AVE$2,000,000
SC/ 2019 CBRC - INTERIOR ALTERATIONS ON FLOORS 3-11 FOR INSTALLATION OF ADDITIONAL ELECTRICAL SERVICE TO INCLUDE NEW CONDUIT AND EQUIPMENT, SWITCHBOARDS BUS DUCT, FEEDER CONNECTORS, SHUNT, TRIP BREAKERS AND FIRE DEPARTME
Issued 2026-08-27 · addition alteration · issued
7500 S EXCHANGE AVE$2,000,000
DIRECT DEVELOPER SERVICES 2019 CBC - EXISTING 2 STORY MIXED-USE BUILDING. INTERIOR ALTERATION TO EXISTING 1ST FLOOR RETAIL SPACE AND 2ND FLOOR OFFICE SPACE CONVERSION TO 14 NEW RESIDENTIAL UNITS. ADD NEW EGRESS DECK AND
Issued 2026-08-20 · addition alteration · issued
18 S MICHIGAN AVE$2,000,000
SELF-CERT 2019 CBRC: INTERIOR ALTERATIONS TO 6TH FLOOR COLLEGE/UNIVERSITIES (BUSINESS) SPACE TO DEMOLISH OFFICE PORTION OF THE SPACE AND EXPAND SKILLS AND SIMULATION INTO THE OFFICE PORTION ON THE EAST SIDE OF THE FLOOR
Issued 2026-08-06 · addition alteration · issued
4801 W PETERSON AVE$1,500,000
SPR / 2019 CBRC: GROUND LEVEL ADDITION TO EXISTING 6-STORY OFFICE BUILDING WITH RELATED ALTERATIONS TO EXISTING BUILDING, PARKING & LANDSCAPE IMPROVEMENTS, AS PER PLANS. (OCCUPANCY GROUP: B, M / TYPE II-A CONSTRUCTI
Issued 2026-09-14 · addition alteration · issued
3959 N LINCOLN AVE$1,500,000
DDS 2019 CBRC: CAISSONS ONLY FOR NEW 5 STORY REAR ADDITION STRUCTURE. CONSULTANT REVIEWER: V3 COMPANIES OF ILLINOIS. OCCUPANCY GROUP R2,B,M,S1 AND S2; CONSTRUCTION TYPE IIA
Issued 2026-08-13 · addition alteration · issued
816 W AGATITE AVE$1,200,000
DDS 2019 CBC: INTERIOR ALTERATIONS & ADDITION OF TWO (2) DWELLING UNITS TO GROUND FLOOR LEVEL IN AN EXISTING 4-STORY BUILDING (OCCUPANCY R-2, TYPE IIIA) CONSULTANT REVIEWER:V3 COMPANIES OF IL
Issued 2026-08-03 · addition alteration · issued
1400 W GREENLEAF AVE$1,100,000
SPR 2019 CBC: FIRST FLOOR ADDITIONS, RENOVATIONS + PARKING ALTERATIONS AS PER PLANS, FIRST FLOOR ONLY, EXISTING 4 STORY BUILDING, BUSINESS OFFICES, WITH ON-SITE PARKING (OCCUPANCY GROUP B, TYPE IB CONSTRUCTION).
Issued 2026-08-18 · addition alteration · issued
1459 N TALMAN AVE$1,050,000
SPR 2019 CBRC: INTERIOR ALTERATIONS, REAR ADDITION AND CHANGE OF OCCUPANCY FROM RELIGIOUS ASSEMBLY (A-3) TO MULTI FAMILY RESIDENTIAL (R2) IN AN EXISTING 2-STORY BUILDING. ADDITION OF 8 DWELLING UNITS IN FULLY SPRINKLED 3
Issued 2026-08-21 · addition alteration · issued
4322 N LOWELL AVE$1,000,000
SELF-CERT 2019 CBRC: RENOVATION OF AND ONE AND TWO-STORY REAR ADDITION WITH BASEMEN TO TWO-STORY SINGLE-FAMILY RESIDENCE (OCCUPANCY R5 & CONSTRUCTION TYPE VA). PROJECT SCOPE INCLUDES WINDOWS, ELECTRICAL, HVAC AND
Issued 2026-08-10 · addition alteration · issued
4130 N GREENVIEW AVE$1,000,000
SC 2019 CBC: 2-STORY ADDITION INCLUDING BASEMENT, CONSERVATORY AND 2ND FLOOR BEDROOM WITH BATHROOM (OCCUPANCY R-5, TYPE III-A) AS PER PLANS.
Issued 2026-08-07 · addition alteration · issued
4110 N PAULINA ST$900,000
SPR / 2019 CBC / FULL BUILDING PERMIT/ THE WORK INCLUDES THE INTERIOR REMODELING, 532 SF REAR SCREEN PORCH AND STAIRS ADDITION AND A 208 SF DECK WITH PERGOLA OF AN EXISTING 2 STORY, MASONRY, SINGLE FAMILY RESIDENCE.OCCU
Issued 2026-09-01 · addition alteration · issued
6661 N RIDGE BLVD$800,000
DDS 2019 CBRC: FOUNDATION ONLY FOR PROPOSED ADDITION TO EXISTING F-1 INDUSTRIAL OCCUPANCY BUILDING FOR NEW WAREHOUSE USE TO INCLUDE UNDERGROUND PLUMBING. CONSTRUCTION TYPE IIA. CONSULTANT REVIEWER: V3 COMPANIES OF IL
Issued 2026-09-02 · addition alteration · issued
4117 N PAULINA ST$700,000
SC 2019 CBC: INTERIOR RENOVATION OF 3 DU IN EXISTING RESIDENTIAL INCLUDING NEW WINDOWS, TUCKPOINTING, AND MEP. R-5; CONSTRUCTION TYPE IIIA. NO CHANGE TO USE, NO ADDITIONAL DU
Issued 2026-09-10 · addition alteration · issued
151 N FRANKLIN ST$612,000
SELF CERT 2019 CBRC: STRUCTRUAL PEER REVIEW INCLUDED. INTERIOR ALTERATIONS TO FIRST FLOOR LOBBY TO REPLACE AN EXISTING RECEPTION DESK AND ADD A NEW OPEN-CEILING GLASS CONFERENCE ROOM ENCLOSURE ON THE MEZZANINE LEVEL. R
Issued 2026-08-17 · addition alteration · issued
1851 W BYRON ST$600,000
SELF-CERT 2019 CBRC. RENOVATION/REAR ADDITION TO A SINGLE-FAMILY RESIDENCE WITH A LEVEL 2 ALTERATION (R5 OCCUPANCY & CONSTRUCTION TYPE VA). PROJECT SCOPE INCLUDES ELECTRICAL, PLUMBING, MECHANICAL & ARCHITECT
Issued 2026-08-07 · addition alteration · issued
2247 W SHAKESPEARE AVE$550,000
SPR 2019 CBRC: RENOVATION AND REAR ADDITION TO EXISTING 2 1/2 STORY 2 DU RESIDENTIAL BUILDING TO INCUDE DEMOLITION AND REPLACEMENT OF INTERIOR WALLS, PORTIONS OF EXTERIOR MASONRY, ENCLOSED PORCH, AND A NEW V-A 2 CAR DETA
Issued 2026-08-17 · addition alteration · issued
1255 N MILWAUKEE AVE$500,000
2019 CBC SPR: INTERIOR RENOVATION TO CONVERT TWO DWELLING UNITS WITH GROUND FLOOR RETAIL TO SEVEN DWELLING UNITS AND GROUND FLOOR RETAIL WITHIN AN EXISTING MIXED-USE THREE-STORY BUILDING, NEW STAIR PENTHOUSE ADDITION, RE
Issued 2026-08-14 · addition alteration · issued
2215 W 18TH ST$500,000
SC 2019 CBRC: CONVERSION OF DETACHED HOUSE TO TWO-FLAT WITH ROOF DORMER ADDITION (OCC GROUP R-5; CONST TYPE VA)
Issued 2026-07-31 · addition alteration · issued
1724 N SPAULDING AVE$450,000
PROPOSED 2ND FLOOR ADDITION W/ROOF DECK/ENCLOSURE AND PERGOLA, REAR 2 STORY ADDITION W/SIDE ENTRY STAIRS, FRONT PORCH/STAIR, REAR DECK/STAIRS, 6' WOOD/6' METAL FENCES/GATES, LOWERING OF BASEMENT, AND INTERNAL ALTERATIONS
Issued 2026-08-12 · addition alteration · issued
1644 N DAMEN AVE$400,000
SELF-CERT 2019 CBRC: ALTERATIONS TO EXISTING TENANT SPACE WITHIN EXISTING 2-STORY SINGLE-TENANT BUILDING. ALTERATIONS INCLUDE LOWERING OF FIRST FLOOR, CONVERSION OF EXISTING SECOND FLOOR TO EQUIPMENT PLATFORM, RESULTING
Issued 2026-08-19 · addition alteration · issued
3035 N MONTICELLO AVE$400,000
SELF-CERT 2019 CBRC: INTERIOR REMODEL AND ROOF TEAR OFF OF EXISTING 2-STORY, TYPE VA FRAME, 20' HT., 2-UNIT RESIDENCE FOR NEW (800) SQ. FT., TYPE VA FRAME, 2ND STORY ADDITION, NEW (464) SQ. FT., TYPE VA FRAME, REAR 2-S
Issued 2026-08-12 · addition alteration · issued
190 S LA SALLE ST$356,078
SELF CERT 2019 CBRC: INTERIOR ALTERATION PROJECT FOR ZRG ON THE 21ST FLOOR TO EXPAND THEIR CURRENT SUITE 2100. THE WORK INCLUDES NEW PARTITIONS, MECHANICAL, ELECTRICAL AND PLUMBING. NO STRUCTURAL WORK OR CHANGE OF USE. B
Issued 2026-08-27 · addition alteration · issued
4118 N MAPLEWOOD AVE$350,000
SPR 2019 CBC: FULL BUILDING PERMIT FOR A 1-STORY ADDITION WITH DECK TO AN EXISTING 2 STORY W/BASEMENT SINGLE FAMILY RESIDENCE (OCCUPANCY GROUP R-5, TYPE VA CONSTRUCTION) CURRENT ZONING R3- NO CHANGE
Issued 2026-08-28 · addition alteration · issued
2423 W MCLEAN AVE$350,000
SC 2019 CBC. INTERIOR ALTERATIONS TO ALL FLOORS OF AN EXISTING TWO STORY, TWO UNIT BUILDING WITH BASEMENT. PROVIDE NEW REAR ADDITION AT SECOND FLOOR RESIDENTIAL UNIT, NEW REAR EGRESS NON-COMBUSTIBLE DECK AND STAIR, NEW F
Issued 2026-08-21 · addition alteration · issued
10714 S CENTRAL PARK AVE$350,000
SPR 2019 CBC: PROPOSED 2ND FLOOR FRAME ADDITION, INTERIOR REMODELING AND ALTERATIONS, NEW FRONT 1 STORY OPEN WOOD PORCH AND REAR 1 STORY OPEN WOOD DECK AND STAIRS TO AN EXISTING 1 STORY BRICK SINGLE FAMILY RESIDENCE WITH
Issued 2026-08-14 · addition alteration · issued
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