St. Louis County, Missouri Building Codes
Additional Resources
Below you can find links to Building Codes and Authorities Having Jurisdiction for St. Louis County, Missouri.
This information is obtained directly to the source -- the city, county and state building departments that issue these codes. If you find an error, please send an e-mail with the updated information to RCDWebmaster@ReedBusiness.com.
• The building codes and AHJ’s listed below apply to unincorporated areas of St. Louis County and to certain municipalities who contract with the St. Louis Department of Public Works. For a list of cities contracting with the county, visit St. Louis County’s Municipal Contract Matrix page.
St. Louis County Missouri Building Codes
| Code Type | Code Model | Amendment Contact |
| Building/Dwelling Code | 2003 IBC, IRC, and International Existing Building Code | (314) 615-5184 |
| Structural Code | 2003 IBC, IRC, and International Existing Building Code | (314) 615-5184 |
| Plumbing Code | UPC 2003 | (314) 615-5184 |
| Mechanical Code | IMC 2003 | (314) 615-5184 |
| Electrical Code | 2005 NEC | (314) 615-5184 |
| Energy Code | IECC 2003 (2003 IBC) | Ordinance #20311; St. Louis County Public Works, (314) 615-5184 |
Missouri Authorities Having Jurisdiction (AHJ)
Authorities Having Jurisdiction are those government officials who are the final authority on questions in a particular area (or jurisdiction).
| Jurisdictional Area | Contact |
| Structural | Dept. of Public Works Phone: (314) 615-5184 |
| Plumbing | Dept. of Public Works Phone: (314) 615-5184 |
| Mechanical | Dept. of Public Works Phone: (314) 615-5184 |
| Electrical | Dept. of Public Works Phone: (314) 615-5184 |
| Accessibility | Dept. of Public Works Phone: (314) 615-5184 |
| Zoning | Dept. of Public Works Phone: (314) 615-5184 |
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Other Missouri Municipalities
Building codes are also available for the following municipalities within Missouri:
