How St. Louis Handles Fence Regulations: A Practical Guide
St. Louis maintains 156 local ordinances across all categories, and 5 of those deal specifically with fence regulations. Here is a breakdown of what the city actually requires, what is prohibited, and where St. Louis falls on the strict-to-permissive spectrum compared to other cities.
Neighbor Fence Rules
St. Louis does not mandate shared fence costs for urban residential property. Missouri RSMo 272.010 partition fence law applies only to agricultural land. The good-side-out tradition is customary but not legally required.
Key details: Cost Sharing: Not required urban. State Law: RSMo 272 agricultural only. Survey: Recommended. Good Side: Customary not required. Disputes: 22nd Circuit Court.
No city penalty for unilateral fence construction on your own side. Encroachments resolved in civil court.
St. Louis is more permissive than most cities when it comes to neighbor fence rules. That said, there are still limits.
Retaining Walls
St. Louis exempts retaining walls of 18 inches or less above the lowest adjacent grade from a building permit; any taller wall needs a Division of Building and Inspection permit and construction documents.
Key details: Permit-exempt height: 18 inches or less above grade. Permit required above: Any wall over 18 inches. Permit fee basis: Estimated construction cost (§ 109.2.3). Issuing agency: Division of Building and Inspection. Enforcement: Daily fines under § 25.01.030.
Building a retaining wall over 18 inches without a permit is a Section 114 violation: the building official can post a notice of violation and issue a stop-work order, and the owner can be fined under § 25.01.030, with each day of continued violation a separate offense.
Fence Permit Requirements
St. Louis requires a Miscellaneous Structures Permit for fences and sets height limits by zone: 48 inches in residential front yards, 8 feet on residential side/rear lines, and 10 feet in commercial zones.
Key details: Residential front yard limit: 48 inches. Residential side/rear limit: 8 feet. Commercial zone limit: 10 feet. Permit fee: $6/$1,000 cost, $15 minimum. Barbed wire / electric fences: Banned in residential zones.
Building or altering a fence without an approved permit, or in violation of an approved plan or Section 430's limits, is a Building Code violation subject to a fine under § 25.01.030; each day the violation continues is a separate offense.
Material Restrictions
St. Louis's Building Code bans barbed wire fencing in residential zones and prohibits electrically charged fences citywide; where barbed wire is otherwise allowed, no strand may sit closer than seven feet to the ground.
Key details: Barbed wire (residential): Banned outright. Electric fences: Banned citywide, no exception. Barbed wire elsewhere: Must clear 7 ft off ground. Enforcement: Building Division / building official. Penalty: Fine under § 25.33.040, per day.
Violating the fence rules is a Building Code violation enforced by the Building Division, punishable by a fine under § 25.33.040; each day the violation continues is a separate, distinct offense.
This is one of the stricter rules in St. Louis's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
Height Limits
St. Louis caps front-yard fences at 48 inches, side/rear fences at 8 feet in residential zones, and commercial-zone fences at 10 feet.
Key details: Front yard max: 48 inches. Side/rear yard max (residential): 8 feet. Commercial zone max: 10 feet. Barbed wire: Banned in residential zones. Electric fences: Banned citywide.
Fences that violate these height, setback, or material rules are enforced as building code violations through the Building Division; noncompliant fences are subject to correction orders and removal.
The Bottom Line
St. Louis's fence regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming St. Louis is broadly strict or permissive.
These rules come from St. Louis's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.