City Building Permits
Florissant, MO - 2026 Building Permit Guide
How to apply for a building permit in Florissant, Missouri. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Florissant runs its own building, zoning, permit, occupancy, plan review, and inspection program inside city limits. Florissant does not use the St. Louis County permit system for building permits.
- Department
- City of Florissant Public Works, Building Division
- Address
- Florissant City Hall, 955 St. Francois, Florissant, MO 63031
- Phone
- (314) 839-7648
Online Permit Portal
Platform: Florissant Online Permitting Portal • Account required: Yes • Submission: In-person only
Additional resources:
Application Process
- Pull the correct application from the Public Works permit applications page or the online portal.
- Submit plans and permit materials through the portal, by email to publicworks@florissantmo.com, or directly with Public Works.
- Pay applicable fees; Florissant accepts credit and debit cards over the phone and checks by mail.
- Receive permit approval, complete required inspections, and obtain occupancy approval where applicable.
Typical processing time: Not stated as a single posted SLA; review time depends on permit type and whether plan review is required.
General Requirements
The Building Division issues construction permits and occupancy permits and performs related plan review and inspections for residential and commercial projects. Public guides identify quick-issue permits and plan-review-required permits.
Required Documents
- Permit application
- Plans and construction drawings
- Zoning authorization where applicable
- Supporting construction information
- Permit validity
- Occupancy inspection materials indicate some inspections are time-limited; verify permit expiration per permit type.
- Building code
- 2021 International Residential Code with city modifications; confirm the full current adopted code set directly with Florissant.
- Owner-builder
- Not clearly summarized in one public landing page; confirm with Public Works.
- Contractor requirements
- Verify contractor requirements with Public Works before filing; city materials reference contractor prequalification and permit-specific requirements.
Fees
- Minimum permit fee
- $95
- Plan check fee
- Included in permit pricing structure where plan review is required; see fee list.
- Permit fee formula
- Quick-issue permits use posted flat charges; plan-review permits use a fee scale starting at $95. A $10 application fee is included where noted.
- Reinspection fee
- $50 per additional or extra inspection
- Penalty (no permit)
- $50 stop work order; $40 permit extensions or amendments
- Payment note
- Applications may be emailed; card payments can be taken over the phone and checks may be mailed to City Hall.
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
Contact the City of Florissant Public Works, Building Division to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- (314) 839-7648 — Florissant Public Works / Building Division (phone)
- publicworks@florissantmo.com (email)
- Inspection hours
- Monday-Friday, 8:00 a.m. to 5:00 p.m.
Typical inspection sequence: Plan review, permit issuance, trade and building inspections, then occupancy inspection where applicable.
Additional Resources
- Building code: 2021 International Residential Code with city modifications; confirm the full current adopted code set directly with Florissant.
- Verify contractor license: Missouri Division of Professional Registration
- Zoning information: View zoning info
- Florissant Permit Applications
- Florissant Fee Schedule
- License lookup guide: Missouri Contractor License Requirements
- Contract template: Missouri Homeowner-Contractor Agreement
- Missouri hub: Missouri Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Florissant Public Works, Building Division before applying.
Frequently Asked Questions
Florissant Building Permit FAQ
- Do I need a building permit in Florissant, MO?
- The Building Division issues construction permits and occupancy permits and performs related plan review and inspections for residential and commercial projects. Public guides identify quick-issue permits and plan-review-required permits.
- How much does a building permit cost in Florissant, MO?
- The minimum permit fee is $95. Fees are calculated as: Quick-issue permits use posted flat charges; plan-review permits use a fee scale starting at $95. A $10 application fee is included where noted.. Plan check fee: Included in permit pricing structure where plan review is required; see fee list..
- How do I apply for a building permit in Florissant, MO?
- 1. Pull the correct application from the Public Works permit applications page or the online portal. 2. Submit plans and permit materials through the portal, by email to publicworks@florissantmo.com, or directly with Public Works. 3. Pay applicable fees; Florissant accepts credit and debit cards over the phone and checks by mail. 4. Receive permit approval, complete required inspections, and obtain occupancy approval where applicable.
- How long does it take to get a building permit in Florissant, MO?
- Typical processing time is Not stated as a single posted SLA; review time depends on permit type and whether plan review is required..
- How do I schedule a building inspection in Florissant, MO?
- Inspections can be scheduled via: (314) 839-7648 — Florissant Public Works / Building Division, publicworks@florissantmo.com.
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