Complete guide to building permit requirements in St. Louis, MO. Find permit rules, costs, and how to apply for sheds, decks, fences, roofs, HVAC, electrical, pools, solar, and more.
St. Louis Building Division handles all building permits in St. Louis.
Select your project type to get St. Louis-specific requirements, costs, and how to apply:
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Get 3 Free Contractor Quotes →Building permits in St. Louis are issued by the St. Louis Building Division. Requirements, fees, and processing times vary by project type. Always verify current requirements with the building department before starting any project.
Most residential projects in St. Louis that involve structural changes, electrical work, plumbing, HVAC, or projects over a certain size require a permit. Small cosmetic work typically does not.
Licensed local contractors know your area's permit requirements and handle the paperwork for you. Get free quotes in minutes.
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