What Florissant Regulates: A Complete Ordinance Overview

Florissant, Missouri may not be the biggest city in the state, but it has its own set of local rules that residents need to follow. With 116 tracked ordinances across 37 categories, there is more here than you might expect.

Animal Ordinances

Mandatory Spay/Neuter: Florissant requires every pit bull to be spayed or neutered under City Code Section 205.395(B), with narrow exceptions for puppies, medical risk, new arrivals, breeders and show dogs. A first violation costs up to $500 plus impoundment; a second draws up to six months in jail and a $1,000 fine..

Also covered: Cat Rules (moderate), Dog Leash Laws (moderate), Pet Limits (moderate). See the full animal ordinances guide for Florissant for details.

Public Health Rules

Rodent Control: Florissant's health nuisance code declares any garbage can that is not fly-tight, meaning it fails to keep out flies, insects and rodents, a nuisance affecting health, and separately declares any infestation of rats, mice or other vermin a nuisance. The Building Commissioner can order abatement, and the City can bill unresolved cleanup costs to the property's tax bill..

Special Events & Permits

Parade Permits: Any procession or parade of more than six vehicles, or a pedestrian group wider than eight feet or longer than forty feet, needs a Chief of Police permit before using Florissant's streets, unless it is a funeral procession. The permit fixes the route and hours and requires the Mayor's written approval..

Also covered: Street Fair Rules (permissive), Park Event Permits (moderate). See the full special events & permits guide for Florissant for details.

Landscaping Rules

Tree Removal & Heritage Trees: Florissant requires a permit from the Director of Public Works before anyone trims, removes or otherwise disturbs a City-owned or street tree, under Code Section 230.040(A). Unauthorized damage or removal of a public tree is separately barred by Section 230.070..

Also covered: Tree Trimming (moderate), Composting (permissive), Weed Ordinances (moderate). See the full landscaping rules guide for Florissant for details.

Sidewalk & Pedestrian Rules

Encroachment Permits: Nobody may dig in a Florissant street, sidewalk, alley, right-of-way or easement without a City excavation permit, which costs $50 per dig ($100 if several digs complete one job) and requires $1 million in liability insurance or a $100,000 bond, plus a separate $2,000 cash deposit or bond with the Director of Finance..

Also covered: Obstruction Rules (moderate). See the full sidewalk & pedestrian rules guide for Florissant for details.

Noise Ordinances

Quiet Hours: Florissant's general noise ordinance bans loud, unnecessary or unusual noise that disturbs neighborhood peace, and sets an 11:00 P.M. to 7:00 A.M.

Also covered: Construction Hours (moderate), Vehicle Noise (moderate), Amplified Music & Outdoor Sound (moderate). See the full noise ordinances guide for Florissant for details.

Parking Rules

Commercial & Oversized Vehicles: No vehicle or trailer over 12,000 pounds licensed weight, including tractor-trailers, dump trucks and buses, may park or be stored on a residential street in Florissant at any time under Section 365.090, and the City can also post specific streets off-limits to commercial vehicles under Section 365.070..

Also covered: Overnight Parking (moderate), Snow Removal Parking Rules (moderate), Abandoned Vehicles (moderate). See the full parking rules guide for Florissant for details.

Property Maintenance

Property Blight: Florissant Code Chapter 510 lets the City order any building with serious structural, fire, sanitary or safety defects repaired, vacated or demolished as a declared public nuisance. The Building Inspector investigates on complaint or referral, the Building Commissioner holds a hearing, and an owner who ignores the order faces fines up to $1,000 per day plus a lien on the property..

Also covered: Vacant Lot Maintenance (moderate). See the full property maintenance guide for Florissant for details.

Business Licensing & Operations

Pawnbrokers: Florissant requires every pawnshop to hold a license from the Director of Finance under Section 605.407, backed by a five-hundred-dollar investigation fee, fifty-thousand-dollar minimum net assets, and a five-thousand-dollar surety bond. Section 605.423 bars locating a pawnshop within three hundred feet of a church, school or residential zone, or within five hundred feet of another pawnshop, and Section 605.440 limits hours to 7:00 a.m.

Also covered: Secondhand Dealers (moderate), Tobacco Retail License (restrictive), Towing Companies (moderate). See the full business licensing & operations guide for Florissant for details.

Public Conduct

Public Alcohol Use: Florissant Code Section 600.140(G) makes it unlawful to drink or possess an open container of intoxicating liquor or non-intoxicating beer on any public street, sidewalk, alley, thoroughfare or parking lot in the city, and the ban extends to unsealed containers inside a vehicle that is parked, standing or being driven on any public place..

Also covered: Public Marijuana Use (moderate), Public Urination (moderate), Jaywalking (moderate). See the full public conduct guide for Florissant for details.

Curfew Laws

Park Curfew: Florissant parks close to the public at 8:00 p.m., and anyone on park grounds after that hour and before one hour before sunrise violates the City's curfew under Code of Ordinances Section 245.030. Tower Court Park stays open until 10:00 p.m., and the James J.

Also covered: Juvenile Curfew (moderate). See the full curfew laws guide for Florissant for details.

Fire Regulations

Fireworks: Florissant bans the sale, possession, use, and discharge of fireworks within city limits under Code of Ordinances Section 215.020, with narrow exceptions for licensed nonprofit pyrotechnic displays. Violators face fines under Section 100.080 and confiscation of the fireworks, and parents can be liable if they let a minor under 17 handle them..

Also covered: Outdoor Burning (restrictive), Smoke Detectors (moderate), Fire Pits & Backyard Fires (moderate). See the full fire regulations guide for Florissant for details.

Trash & Recycling

Illegal Dumping: Florissant makes it unlawful to operate a garbage or rubbish dump or to fill ground with garbage or rubbish anywhere in the City under Code Section 220.090. The ban covers any person maintaining a dump site, not just active dumping, and pairs with the City's separate litter and vehicle-spillage rules in the same chapter..

Also covered: Collection Schedule (moderate), Recycling Requirements (limited), Pickup Rules & Schedules (moderate). See the full trash & recycling guide for Florissant for details.

Environmental Rules

Erosion Control: Florissant's Land Disturbance Code, Chapter 505 Article IX, requires a land disturbance permit and Best Management Practices for any clearing, grading or construction that exposes soil, defines major disturbance at one acre or more, and backs it with misdemeanor fines up to $1,000 per day..

Also covered: Stormwater Management (moderate), Flood Zones (restrictive), Flood Elevation Requirements (restrictive). See the full environmental rules guide for Florissant for details.

Home Business

Signage Rules: A Florissant home occupation cannot display any sign at all. The zoning code's definition of 'home occupation' bars any exterior sign or display indicating the dwelling is used for anything but a home, making a completely sign-free exterior a condition of keeping the permitted-use status..

Also covered: Home Daycare (restrictive), Zoning & Home Occupation Permits (moderate). See the full home business guide for Florissant for details.

Fence Regulations

Height Limits: Florissant requires a permit before any fence goes up, per Zoning Code Section 405.220, and the fee applies even to a straight replacement. In Districts "A" and "R-1" through "R-6," a rear or side yard fence tops out at six feet, and none may sit in the required front yard without Planning and Zoning Commission approval.

Also covered: Material Restrictions (moderate), Retaining Walls (moderate), Fence Permit Requirements (moderate). See the full fence regulations guide for Florissant for details.

Invasive Plant Rules

Prohibited Species: Florissant's Code of Ordinances § 213.075 declares invasive, non-native, exotic plants a public nuisance citywide and bans planting, cultivating or propagating them on any property, public or private. The ordinance adopts the Missouri Department of Conservation's list, naming species like bush honeysuckle, kudzu, Callery pear and multiflora rose..

Outdoor Lighting

Dark Sky Rules: Florissant's Section 405.251, adopted by Ordinance No. 9109 on September 22, 2025, requires new and replacement outdoor light fixtures in business, industrial, and commercial-use residential districts to be fully shielded so no light shows above the horizontal plane.

Also covered: Light Trespass & Shielding (moderate), Billboard Lighting (moderate). See the full outdoor lighting guide for Florissant for details.

Building Setbacks & Zoning

Structure Height Limits: Florissant caps single-family homes in the R-1 Single-Family Dwelling District at two and one-half stories and thirty-five feet under the zoning code's height, area and bulk table. The same table sets a one-acre minimum lot, a 30-foot front yard and a 35-foot rear yard.

Also covered: Setback Rules (moderate). See the full building setbacks & zoning guide for Florissant for details.

Cannabis Regulations

Buffer Zones: Florissant's zoning code keeps licensed marijuana facilities away from sensitive uses with two different buffers: a dispensary must sit at least 300 feet from any existing church, day care center or school, while a cultivation, manufacturing or testing facility must sit at least 750 feet from the same uses..

Also covered: Dispensary Zoning (moderate). See the full cannabis regulations guide for Florissant for details.

Building Safety

Childcare Center Rules: Florissant requires any facility caring for more than four unrelated children away from the provider's home to hold both a Missouri DHSS license and a separate City license under Section 605.383, with a $100 application fee capped at $500 for owners running multiple centers..

Also covered: Building Permits (moderate), Fire Sprinkler Requirements (limited), Building Inspections (moderate). See the full building safety guide for Florissant for details.

Local Taxes & Fees

Business Tax Classification: Florissant classifies businesses for its annual license fee two ways under Section 605.347: a graduated minimum fee of $50 to $250 based on employee count, or a specific set fee listed for dozens of named business types, from $30 taxicabs to $250 insurance companies..

Also covered: Vacancy Tax (moderate). See the full local taxes & fees guide for Florissant for details.

Sign Regulations

Freeway-Facing Signs: Billboards aimed at highway traffic in Florissant are capped at 30 feet above the highway's natural grade (50 feet above the sign's own installed grade) and must sit within 100 feet of a national-highway-system right-of-way. They also need 400-foot separation from residential zoning, 1,500 feet from any major interchange, and 500 feet from another billboard on the same side of the road..

Also covered: Garage Sale Signs (limited), Window Signs (moderate), Digital Billboards (moderate). See the full sign regulations guide for Florissant for details.

Swimming Pools & Spas

Pool Permits: Florissant requires a building permit before constructing, enlarging, altering or demolishing a residential pool or spa under Section 105.1 of the adopted 2021 Swimming Pool and Spa Code. Small pools under twenty-four inches deep or under 250 square feet of surface area, and purely decorative ponds without a filtration system, are exempt..

Also covered: Fencing & Safety Requirements (moderate). See the full swimming pools & spas guide for Florissant for details.

Rental Property Rules

Rental Registration: Florissant requires every residential rental property to carry an annual $50-per-unit rental license from the Department of Public Works under Section 605.455, tied to a crime-free housing certificate, before an owner may lease it to a non-owner occupant..

Also covered: Repairs & Habitability (moderate). See the full rental property rules guide for Florissant for details.

Food Trucks & Mobile Vendors

Food Truck Permits: Anyone running a mobile food truck in Florissant needs a City business license from the Finance Director, plus a current St. Louis County mobile food establishment permit, a fire safety certificate, and a $50,000/$100,000/$50,000 auto insurance policy naming the City as an additional insured..

Also covered: Vending Zones (moderate). See the full food trucks & mobile vendors guide for Florissant for details.

Tree Protection

Parkway Planting: Florissant requires a free permit from the Director of Public Works before anyone plants a tree or shrub in a street or public place, per Code Section 230.040(B). Species and location must follow the City's master street tree plan administered under Section 230.030(D)..

Historic Preservation

Historic-Cultural Monuments: Florissant's Landmark and Historic District Commission can designate any property, structure or area as a Landmark or Historic District if it meets one or more criteria in Section 405.460(F), including a listed test for "character, interest or value as part of the development, heritage or cultural characteristics of the community, County, State or country." Fourteen additional criteria cover architecture, craftsmanship and historic events..

Garage & Yard Sales

Frequency, Duration & Permits: Florissant treats garage, yard, estate and moving sales as a permitted accessory use in the R-1 Single-Family Dwelling District, but only with a permit from the Director of Finance and only twice a year. Each sale is capped at two days within any seven-day span, and the goods must be displayed behind the building line, not out toward the street..

Rental Inspections

Tenant Complaint Process: Florissant can suspend or revoke a landlord's residential rental license when neighbors or the City document three or more nuisance incidents tied to a rental unit within twelve months. The rule, enforced by the Director of Public Works under Code Section 605.461, explicitly shields tenants who call police or 911 for their own protection from being used as grounds for that suspension..

Also covered: Inspection Programs (moderate). See the full rental inspections guide for Florissant for details.

Noise from Specific Sources

Car Alarm Limits: Florissant's noise ordinance bans sounding any vehicle horn or signaling device, including a car alarm, for an unreasonable period of time or with unreasonably loud or harsh sound on any City street or public place. Horns are allowed only as a genuine danger warning or during an approved parade; violators face the City's general penalty of up to a $1,000 fine or three months in jail..

Also covered: Delivery Truck Noise (moderate), HVAC & Mechanical Noise (moderate), Generator Noise (moderate). See the full noise from specific sources guide for Florissant for details.

Code Violation Reporting

Common Violations: Florissant's rental housing ordinance defines 'public nuisance' with a specific list of common code violations and their governing sections, from loud noise and graffiti to tall weeds, derelict vehicles, dangerous buildings and blocked storm drains, all enforceable citywide under Section 605.454..

Mobility & Curb Rules

Bike Lane Rules: Section 385.040 requires Florissant bicyclists to ride as near the right-hand side of the roadway as practicable and bars riding more than two abreast except on a dedicated bike path. Whenever the city has built a usable bike path next to a roadway, cyclists must use that path and are barred from riding the roadway itself, with violations punished as ordinance offenses under Section 385.130..

Privacy & Surveillance

Security Camera Rules: Florissant does not regulate home security cameras, but it requires them at certain businesses. Convenience stores must run a security camera system focused on the cash register with at least 30 days of recorded storage, and the City sets similar camera mandates for liquor licensees, short-term/consumer loan businesses and lodging establishments..

Short-Term Rentals

Short-Term Rental Permits: Florissant bans short-term and vacation rentals outright in every residential zoning district. The only lawful short-stay lodging is a licensed bed and breakfast, lodging establishment, or private club, each of which needs its own City license under Chapter 605, Article V before taking a single guest..

Soliciting & Door-to-Door

Solicitor Permits: Florissant requires anyone going door-to-door to sell goods or solicit donations to get a permit from the Director of Finance first: $25 for peddlers, $10 for solicitors, with a criminal-history check, mandatory display of the permit, and activity limited to daylight hours on any day except Sunday..

Accessory Structures

Shed & Carport Rules: Florissant caps backyard sheds and other accessory buildings at eighteen feet and bars them from exceeding the height of the house itself, under Zoning Code Section 405.215. A shed can fill no more than thirty percent of the required rear yard, and anything up to thirteen feet tall must sit at least three feet off the property line, with an extra foot of setback for every extra foot of height.

What to Do With This Information

If you are moving to Florissant, buying a home, or starting a project, use this as a starting point. Each category links to detailed pages with the full text, penalties, and FAQs. Verify anything time-sensitive with Florissant's city hall or code enforcement office.