St. Clair County Building & Zoning Department
AI-researched from the official website · pending reviewer verification- Address
- 10 Public Square, 5th Floor, Belleville, IL 62220
- Phone
- (618) 825-2528
- Hours
- Monday-Friday 8:30 a.m.-4:30 p.m. (department page text); contact box on same page lists M-F 8:30am-5:00pm
- Building code
- 2012 International Residential Code and 2012 International Building Code with St. Clair County amend…
- Jurisdiction
- County · St. Louis metro
Researched October 13, 2026 from the office's official website. Offices change hours and fees; confirm before you visit. See an error? Report it.
Permit types issued
- Building Permit - New Single Family Residence
- Building Permit - Residential Accessory Structures
- Building Permit - Residential Remodel/Addition
- Demolition Permit
- Electrical Permit
- Occupancy Permit / Sale Occupancy Inspection
Fees, review times and which of these your project needs are in the .