Outdoor Lighting in O'Fallon, MO (2026)
3 verified outdoor lighting rules for O'Fallon, Missouri, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
O'Fallon bars any exterior light fixture from being oriented so its lighting element or lens is visible from a residentially zoned property, under Zoning Code Section 400.277(D)(1). Every private lighting plan must be shown on a photometric plan before the City signs off on a new development.
O'Fallon Requires Shielded Exterior Light Fixtures
Some RestrictionsO'Fallon Code § 400.277(D)(1)
1. Orientation Of Fixture. In no instance shall an exterior lighting fixture be oriented so that the lighting element (or a transparent shield) is visible from a property located within a residential zoning district. The use of shielded luminaries and careful fixture placement is encouraged so as to facilitate compliance with this requirement.
Light Trespass & Shielding
O'Fallon limits light trespass onto neighboring property to one-half of one foot-candle measured at the property line, under Zoning Code Section 400.277(D)(2). Commercial and industrial sites facing a street must also keep road-edge lighting between 0.4 and 0.7 foot-candles and aim it downward.
O'Fallon Caps Light Spill At 0.5 Foot-Candles
Some RestrictionsO'Fallon Code § 400.277(A), (D)(2)
A. Purpose. The purpose of this Section is to regulate the spill-over of light and glare on operators of motor vehicles, pedestrians and land uses in the vicinity of a light source in order to promote traffic safety and to prevent the creation of nuisances. ... 2. Intensity Of Illumination. In no instance shall the amount of illumination attributable to exterior lighting, as measured at the pro...
Billboard Lighting
O'Fallon bans any revolving, rotating, flashing or moving light on a billboard outright under Section 410.170(B)(4). Steady external lighting like floodlights is allowed, but only if it is aimed at the sign face and shielded so no beam spills onto the highway or glares into a driver's eyes.
O'Fallon Billboard Lighting Shielding Rules
Some RestrictionsO'Fallon Code § 410.170(B)(4)
No revolving or rotating beam or beacon of light shall be permitted as part of any billboard sign. No flashing, intermittent or moving light or lights shall be permitted as a part of any billboard sign. ... External lighting, such as floodlights, thin line and gooseline reflectors are permitted, provided the light source is directed upon the face of the billboard sign and is effectively shielde...
Looking for St. Charles County county-wide rules?
County ordinances apply to unincorporated areas and may supplement O'Fallon city rules.
Outdoor Lighting in St. Charles County →