Illinois County Building Department Directory

Before starting any remodeling project, it’s crucial to check with your local county’s building department to confirm permit requirements, local codes, and inspection schedules. Each Illinois county has its own process, contact info, and website. Below is a full directory with official links and phone numbers, so homeowners can easily find the right department.

This directory is a vital tool for anyone starting a home renovation in Illinois — bookmark it and return often as a trusted resource.

Adams County – Adams County Building Permits — Phone: (217) 277-2125
Alexander County – Alexander County Courthouse — Phone: (618) 734-7000
Bond County – Bond County Zoning — Phone: (618) 237-9737
Boone County – Boone County Building & Zoning — Phone: (815) 547-6698
Brown County – Brown County, IL Government — Phone: (217) 773-3421
Bureau County – Bureau County Building Department — Phone: (815) 875-1731
Calhoun County – Calhoun County, IL — Phone: (618) 576-9041
Carroll County – Carroll County Zoning — Phone: (815) 244-0284
Cass County – Cass County Zoning — Phone: (217) 452-7781
Champaign County – Champaign County Building Permits — Phone: (217) 384-3708
Christian County – Christian County Zoning — Phone: (217) 824-5433
Clark County – Clark County, IL — Phone: (217) 826-5816
Clay County – Clay County Building Dept. — Phone: (618) 665-3346
Clinton County – Clinton County Zoning — Phone: (618) 594-6655
Coles County – Coles County Building Permits — Phone: (217) 348-0521
Cook County – Cook County Building & Zoning — Phone: (312) 603-0500
Crawford County – Crawford County, IL — Phone: (618) 546-1061
Cumberland County – Cumberland County Courthouse — Phone: (217) 849-2631
DeKalb County – DeKalb County Building Permits — Phone: (815) 895-7188
De Witt County – DeWitt County Building Dept. — Phone: (217) 935-7760

Douglas County – Douglas County, IL — Phone: (217) 253-3231
DuPage County – DuPage County Building Permits — Phone: (630) 407-6700
Edgar County – Edgar County Zoning — Phone: (217) 466-7418
Edwards County – Edwards County, IL — Phone: (618) 445-2115
Effingham County – Effingham County Building Dept. — Phone: (217) 342-4990
Fayette County – Fayette County Zoning — Phone: (618) 283-5009
Ford County – Ford County, IL — Phone: (217) 379-9430
Franklin County – Franklin County Building Dept. — Phone: (618) 439-4111
Fulton County – Fulton County Zoning — Phone: (309) 547-0902
Gallatin County – Gallatin County, IL — Phone: (618) 269-3025

Greene County – Greene County Courthouse — Phone: (217) 942-5443
Grundy County – Grundy County Building Dept. — Phone: (815) 941-3228
Hamilton County – Hamilton County, IL — Phone: (618) 643-2721
Hancock County – Hancock County Zoning — Phone: (217) 357-2616
Hardin County – Hardin County, IL — Phone: (618) 287-2251
Henderson County – Henderson County, IL — Phone: (309) 867-3121
Henry County – Henry County Building Dept. — Phone: (309) 937-3419
Iroquois County – Iroquois County Building Permits — Phone: (815) 432-6995
Jackson County – Jackson County Zoning — Phone: (618) 687-0790
Jasper County – Jasper County, IL — Phone: (618) 783-2915

Jefferson County – Jefferson County Building Dept. — Phone: (618) 244-8000
Jersey County – Jersey County Zoning — Phone: (618) 498-5571 ext. 142
Jo Daviess County – Jo Daviess County Building Dept. — Phone: (815) 591-3810
Johnson County – Johnson County, IL — Phone: (618) 658-3815
Kane County – Kane County Permits — Phone: (630) 232-3485
Kankakee County – Kankakee County Planning — Phone: (815) 937-2940
Kendall County – Kendall County Building Dept. — Phone: (630) 553-4141
Knox County – Knox County Zoning — Phone: (309) 345-3840
Lake County – Lake County Building Permits — Phone: (847) 377-2600
LaSalle County – LaSalle County Land Use (Permits) — Phone: (815) 434-8666

Lawrence County – Lawrence County, IL — Phone: (618) 943-2346
Lee County – Lee County Zoning Department — Phone: (815) 288-3643
Livingston County – Livingston County Building and Zoning — Phone: (815) 844-7741
Logan County – Logan County Zoning Office — Phone: (217) 732-6400
McDonough County – McDonough County Planning Office — Phone: (309) 833-4944
McHenry County – McHenry County Planning and Development — Phone: (815) 334-4560
McLean County – McLean County Building and Zoning — Phone: (309) 888-5160
Macon County – Macon County Planning & Zoning — Phone: (217) 424-1466
Macoupin County – Macoupin County Zoning — Phone: (217) 854-3214
Madison County – Madison County Planning and Development — Phone: (618) 296-4468

Marion County – Marion County, IL — Phone: (618) 548-3878
Marshall County – Marshall County Zoning — Phone: (309) 246-6401
Mason County – Mason County, IL — Phone: (309) 543-6855
Massac County – Massac County Courthouse — Phone: (618) 524-9602
Menard County – Menard County Zoning — Phone: (217) 632-5123
Mercer County – Mercer County, IL — Phone: (309) 582-5214
Monroe County – Monroe County Building Dept. — Phone: (618) 939-8681 ext. 260
Montgomery County – Montgomery County Zoning — Phone: (217) 532-3533
Morgan County – Morgan County, IL — Phone: (217) 243-9404
Moultrie County – Moultrie County Zoning — Phone: (217) 728-4382

Ogle County – Ogle County Building & Zoning — Phone: (815) 732-1190
Peoria County – Peoria County Permits — Phone: (309) 672-6915
Perry County – Perry County, IL — Phone: (618) 357-5315
Piatt County – Piatt County Zoning — Phone: (217) 762-3112
Pike County – Pike County, IL — Phone: (217) 285-4321
Pope County – Pope County, IL — Phone: (618) 683-4466
Pulaski County – Pulaski County Courthouse — Phone: (618) 748-9360
Putnam County – Putnam County, IL — Phone: (815) 925-7182
Randolph County – Randolph County Zoning — Phone: (618) 826-5000 ext. 229
Richland County – Richland County, IL — Phone: (618) 392-6111

Rock Island County – Rock Island County Building Permits — Phone: (309) 558-3771
St. Clair County – St. Clair County Building Dept. — Phone: (618) 825-2524
Saline County – Saline County, IL — Phone: (618) 252-2011
Sangamon County – Sangamon County Building Dept. — Phone: (217) 753-6760
Schuyler County – Schuyler County, IL — Phone: (217) 322-6715
Scott County – Scott County, IL — Phone: (217) 742-3178
Shelby County – Shelby County Zoning — Phone: (217) 774-1434
Stark County – Stark County, IL — Phone: (309) 286-5950
Stephenson County – Stephenson County Building/Zoning — Phone: (815) 235-8289
Tazewell County – Tazewell County Permits — Phone: (309) 477-2235

Union County – Union County, IL — Phone: (618) 833-8248
Vermilion County – Vermilion County Building & Grounds — Phone: (217) 554-7830
Wabash County – Wabash County, IL — Phone: (618) 262-4561
Warren County – Warren County Zoning — Phone: (309) 734-8592
Washington County – Washington County, IL — Phone: (618) 327-4800
Wayne County – Wayne County, IL — Phone: (618) 842-5087
White County – White County, IL — Phone: (618) 382-7211
Whiteside County – Whiteside County Zoning Department — Phone: (815) 772-5175
Will County – Will County Land Use Department — Phone: (815) 727-8631
Williamson County – Williamson County Planning & Zoning — Phone: (618) 997-1301
Winnebago County – Winnebago County Planning & Zoning — Phone: (815) 319-4350
Woodford County – Woodford County Zoning — Phone: (309) 467-3023