Missouri Building Energy Codes

Code Level

  • Commercial Energy Code - No Statewide Code
  • Residential Energy Code - No Statewide Code

Authority

Authorized by – None. Legislation established energy requirements for state-funded buildings only. Legislation will be required to adopt a mandatory statewide energy code. Local jurisdictions may adopt their own energy code. Numerous jurisdictions throughout the state have adopted an energy code; including most major municipalities such as the City of St. Louis, St. Louis County, Kansas City, Springfield, Independence and Columbia.  The precise code edition enforced by the jurisdiction varies.

Oversight – None.

Code change process – Legislative. In Missouri, only the General Assembly is authorized to enact legislation to establish statewide building construction regulations and/or authorize a state agency to do so. However, there currently is no state regulatory agency authorized to promulgate, adopt or update construction codes on a statewide basis. 

Code change cycle - None.

Compliance

Enforcement - Local jurisdictions are responsible for enforcing any building codes that they have adopted municipally. Below are the current energy codes for the top five jurisdictions by population.

Municipal Energy Codes

Five Largest Jurisdictions in MissouriResidential Energy CodeCommercial Energy Code
St. Louis County2015 IECC, slightly amended2015 IECC, slightly amended
Jackson County2003 IECC2003 IECC
Kansas City2021 IECC, unamended2021 IECC, unamended
St. Charles County2009 IECC, moderately amended2009 IECC
City of St. Louis2018 IECC. slightly amended2018 IECC

 

Implementation/Compliance Studies – The Department of Economic Development has commissioned a study of statewide residential energy code compliance. A copy of the final report and results are forthcoming.

Primary Contacts

Missouri Department of Natural Resources, Division of Energy

Missouri Association of Code Enforcement

Missouri Botanical Garden- Earthways Center