Kirkwood, MO Outdoor Lighting: Light Trespass & Shielding (2026)
Key Facts
- General off-site cap
- 0.5 footcandle at grade
- Cap onto single-family use
- 0.1 footcandle at grade
- Under-canopy max
- 42 footcandles
- Photometric plan reach
- 10 ft beyond lot lines
- Parking lot minimum
- 1.0 footcandle
Summary
Kirkwood caps light spilling off a lot at 0.5 footcandle at finished grade generally, and drops that limit to 0.1 footcandle where the light lands on adjoining single-family residential property, under § 25-52(e)(2).
Maximum illumination levels.
(i) The maximum level of light cast off site shall be less than or equal to 0.5 footcandle at finished grade unless otherwise specified herein.
(ii) The maximum illumination level of light cast off site onto properties with single-family residential uses shall be less than or equal to 0.1 footcandle at finished grade.
Full Breakdown
Section 25-52(e) of the Kirkwood Code of Ordinances sets both minimum and maximum illumination levels to control light trespass between properties. 5 footcandle or less at finished grade unless another standard applies. 1 footcandle or less at finished grade, the strictest trespass limit in the section, reflecting the added protection Kirkwood gives residential neighbors from commercial or multifamily lighting spillover. A separate, higher allowance of up to 42 footcandles applies only directly under canopies, such as gas station canopies, under § 25-52(e)(2)(iii). 0 footcandles for pedestrian routes, refuge areas and sidewalks, so the trespass ceiling operates alongside a floor for on-site safety lighting.
Compliance is verified through the photometric plan required under § 25-52(d)(1), which must show point-by-point footcandle readings extending at least 10 feet beyond all lot lines, and again through the as-built photometric plan required before occupancy under § 25-52(d)(10).
Violations & Fines
The Director of Public Services enforces § 25-52 under § 25-99, and property owners may appeal an enforcement decision to the Board of Adjustment under § 25-25. Exceeding the off-site illumination limits is a Code violation subject to § 25-100(b): a fine of $10 to $250 per day for a first offense, or up to 10 days' imprisonment, or both, and $100 to $500 per day for a repeat violation at the same location, with each day treated as a separate offense under § 25-101.
Frequently Asked Questions
How much light can a Kirkwood business legally cast onto my property?
Does Kirkwood require proof that a lighting plan meets the trespass limits?
Is there an exception to the light trespass cap for canopy lighting?
Sources & Official References
Other rules in Kirkwood
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