County building permits in Illinois
Select a county to see exactly who issues building permits and open the official permit portal.
Cook County
Cook County Department of Building & Zoning (unincorporated areas); City of Chicago issues its own permits
DuPage County
DuPage County Building & Zoning Department (unincorporated areas); municipalities issue their own permits
Lake County
Lake County Planning, Building & Development Department (unincorporated areas); municipalities issue their own permits
Will County
Will County Land Use Department — Building Division (unincorporated areas); municipalities issue their own permits
Kane County
Kane County Development & Community Services Department (unincorporated areas); municipalities issue their own permits
McHenry County
McHenry County Planning & Development — Building Division (unincorporated areas); municipalities issue their own permits
Winnebago County
Winnebago County Building Division (Community Development) — unincorporated areas and several villages; larger cities issue their own permits
Madison County
Madison County Building & Zoning Department (unincorporated areas); municipalities issue their own permits
St. Clair County
St. Clair County Building & Zoning Department (unincorporated areas); municipalities issue their own permits
Champaign County
Champaign County Department of Planning & Zoning (unincorporated areas); municipalities issue their own permits
Sangamon County
Sangamon County Department of Building and Zoning (unincorporated areas); municipalities issue their own permits
Peoria County
Peoria County Planning & Zoning Department (unincorporated areas); municipalities issue their own permits
Kendall County
Kendall County Planning, Building & Zoning Department (unincorporated areas and the Villages of Millbrook & Plattville); other municipalities issue their own permits
LaSalle County
LaSalle County Land Use Department (unincorporated areas); municipalities issue their own permits
McLean County
McLean County Department of Building and Zoning (unincorporated areas); municipalities issue their own permits