Building Permits in St. Louis
Find permit requirements, fees, and application steps for all common building projects in St. Louis, MO. Source-cited from official city building code.
Most home improvement projects in St. Louis require a building permit. Select a permit type below to see whether a permit is required, what the fees are, and how to apply through the St. Louis Building Division (Community Development Administration).
Permit Types
Fence Permit
Requirements →
Shed Permit
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Deck Permit
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Pool Permit
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Addition Permit
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ADU Permit
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Demolition Permit
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Electrical Permit
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Plumbing Permit
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Roofing Permit
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HVAC Permit
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Solar Permit
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St. Louis Building Department
St. Louis Building Division (Community Development Administration)
Phone: (314) 622-3313
Visit Building Department WebsiteAbout St. Louis Building Permits
Building permits ensure that construction work in St. Louis meets local safety codes and zoning requirements. Unpermitted work can result in fines, required demolition, and complications when selling your home. Always confirm permit requirements with the St. Louis Building Division (Community Development Administration) before starting any project.
Source: St. Louis City Revised Code Chapter 26 (Building); St. Louis Zoning Code (Ordinance 69560). Last verified April 6, 2026. View source