Florissant, MO Fence Regulations: Height Limits (2026)

220(A)(1) makes it unlawful to erect a fence anywhere in Florissant without first filing an application with the Building Commissioner that includes a sketch of the type, design, color and location, and paying the permit fee, which applies to replacement fences the same as new ones. In the residential districts, "A" and "R-1" through "R-6," a fence in a rear or side yard on a non-corner lot can reach six feet with Building Commissioner approval, but nothing may go in the required front yard unless the Planning and Zoning Commission signs off for public safety and design reasons.

Corner lots get their own rule: no fence may sit in front of the building line along the street side, though a six-foot fence is allowed in the side yard on the side not facing the street and in the rear yard behind that building line. Commercial and industrial districts, B-1 through B-4, M-1 and M-2, have no fixed height cap, but any fencing there needs Planning and Zoning Commission approval and can never extend past the front building line. " Owners must keep fences in good repair, repainting or preserving non-rusting materials, and the Building Commissioner can order repairs within forty-five days of notice, longer if compliance would work an undue hardship.

Where Commission review is required, the Building Commissioner certifies the application within seven days of the fee being paid, and the Commission has thirty days to approve, conditionally approve or reject it, weighing design, color, materials, texture, height and relation to neighboring structures, before an adverse ruling can be appealed to the Board of Adjustment.