Iowa does not mandate a statewide commercial building code, so adoption and enforcement occur at the local level. Local jurisdictions may amend state model codes or opt out entirely if their population is under 15,000.
Des Moines adopts the International Codes with both technical and administrative amendments detailed in its Municipal Code. Local amendments impact energy, fire, and building design requirements, including snow, wind, frost criteria, and CO-detection provisions for commercial projects.
The City Council has scheduled the adoption of updated building and fire codes, effective January 1, 2026. This includes the 2024 editions of the International Building Code, International Residential Code, International Existing Building Code, and International Fire Code.