Every outdoor sign in Flossmoor is governed by the municipality’s sign ordinance, which sets how large a sign may be, how tall it may stand, how far it must sit from the property line, whether it may be illuminated, and which sign types are permitted in each zoning district. This page summarizes those requirements in plain language and links each value back to the section of the Flossmoor code it came from.
Sign rules here are layered. The base zoning district — commercial, industrial, or residential — sets the default limits, and overlay districts such as historic or downtown districts can tighten them further. Because the most specific jurisdiction controls, a freestanding monument sign on a commercial parcel and a wall sign in a historic overlay can face very different limits even on the same street in Flossmoor.
Use the figures below as a fast first check, then run a full address lookup to confirm the exact limits for a specific parcel in Flossmoor, Illinois. The full report also covers permit requirements, prohibited sign types, and illumination rules — each cited to the source ordinance so your permit application can reference it directly.
Before you order or install a sign in Flossmoor, confirm three things: the maximum sign area and height allowed in the parcel’s zoning district, the minimum setback from the right-of-way, and whether the sign type you want — freestanding, monument, wall, projecting, or awning — is permitted there at all. Many permit denials come from missing a setback or an overlay-district restriction rather than from the size of the sign itself, so checking the governing section before applying saves a costly resubmittal.
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Ground sign setback
Minimum 5 feet from any property line. On corner lots, ground sign permitted on each street frontage.
Building Signs
Building Sign Formula
shall be permitted, except in compliance with the following regulations: A. Front wall signs. Front wall signs
Building Sign Formula
shall be permitted, subject to the following standards: (1) A sign or signs
Single-occupancy building: ground sign may be used in lieu of wall sign. Multiple-occupancy retail buildings: ground sign may be permitted in addition to permitted wall signs. Multiple-occupancy office buildings with common entrance: ground sign may be permitted in lieu of wall sign. Multiple-occupancy office buildings with separate entrances: ground signs may be permitted in addition to wall signs.
Ground Sign Formula
For lots with area exceeding 25,000 square feet, maximum ground sign face area is 60 square feet; for lots with area less than 25,000 square feet, maximum ground sign face area is 30 square feet. Single- or double-faced permitted.