The Wentzville Fire Protection District issues permits for building construction, commercial use (occupancy), open burning, and commercial fireworks. The private use of recreational fireworks may be prohibited by certain city ordinances (please check with your municipality). We strongly discourage the use of fireworks due to their dangerous nature. When permits are required?
  • Open Burning
  • Commercial Occupancy Permits
  • Firework Stands & Firework Displays
  • Residential buildings which have 3 or more units.
  • All Commercial buildings and additions; including horse arena’s used for horse shows, commercial swimming pools
  • Kitchen hood and suppression systems which are not part of the general building permit
  • Sprinkler Systems which are not part of a general building permit.  Does not include one and two family dwellings.
  • Fire Main
  • Special Amusement Buildings
  • Carnivals and Fairs
  • Covered Mall Buildings
  • Exhibits and Trade Shows
  • Construction Blasting
  • Storage of Blasting Agent
  • Site Plan Review
  • Temporary Membrane Structure
  • Tents & Canopies
  • Installation of Security Gates
  • Installation/Removal of Underground Storage Tanks
When permits are not required
  • All single and two family residential buildings and garages.
  • Pole barns that use wooden poles as the main structural support and are used mainly to store farm equipment
  • Residential and commercial hot tubs installed outdoors
  • Other agricultural type out buildings
  • Unusual buildings are permitted at the discretion of the Wentzville Fire Marshal
  • Outdoor Firepits

Open Burning Permits Regulations for Open Burning Permit Permits to conduct open burning are available Monday-Friday September 15-April 15, just contact our office to verify you are in unincorporated St. Charles County and to have permit emailed or pick up during office hours.
Construction Permits Application for Permit Variance Request All Commercial and Residential Buildings which have 3 or more units must be permitted. Completed building permit applications must be submitted with an electronic version [email protected]  . The applicant will be notified when permits are ready to be picked up and paid for. CASH OR CHECK.  No work may begin prior to permit issuance.   Occupancy Permits Application for Occupancy Permit Occupancy permits are required by the Wentzville Fire Protection District for owner or tenants to occupy or re-occupy existing commercial spaces or to occupy newly constructed space. The City and the County may also require an occupancy permit to be issued as well. The application is not a permit itself. All questions regarding permits and the Fire Prevention Bureau may be directed to Chris Cuddihee, Fire Marshal at 636-332-9869 between 8:00 a.m. and 4:00 p.m. Monday through Friday or email Chris at: [email protected]
Frequently Asked Questions: What are the current codes being enforced? 2015 ICC Building Code with amendments 2015 ICC Fire Prevention Code with amendments There are amendments to the above codes, as well as local Ordinances dealing with fire hydrants, hazardous materials, street sizes and other fire related codes which are available by contacting us. How many plans are required to be submitted along with application? All plans can be submitted via email to [email protected]
  • Commercial -1 set electronically
  • Residential Buildings (3 or more units only) -1 set, a plot plan electronically.
How many sets of plans will be returned? Are they required to be signed or sealed and by whom? Commercial Plans & Sprinkler Plans, must be signed and sealed (copies will be accepted) by a Missouri Registered Design Professional (a Registered Architect or Professional Engineer). Are numbers required on residential homes? Yes... shall have the number so displayed on the dwelling in a position easily observed and readable from the public right-of-way. All numbers shall be in Arabic figures at least four (4) inches high and one half (1/2) inch wide stroke. All such numbers shall be contrasting color to the background to which they are mounted.

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