Outdoor Lighting in Plymouth, MN (2026)
3 verified outdoor lighting rules for Plymouth, Minnesota, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
The City of Plymouth regulates exterior lighting under Zoning Code Section 21105.06 to cut sky glow, glare and light pollution. Non-residential lighting must dim or shut off by curfew, mercury vapor lamps are banned outright, and every fixture is rated for a Lighting Zone the City Council maps across Plymouth.
Plymouth Curfews and Shields Outdoor Lighting
Some RestrictionsPlymouth City Code § 21105.06, Subd. 1, 4
Subd. 1.Purpose and Scope. The purpose of this Section is to establish exterior lighting requirements that will 1) permit reasonable uses of lighting for night-time safety, utility, security, productivity, enjoyment and commerce, 2) minimize glare, obtrusive light and artificial sky glow by limiting outdoor lighting that is misdirected, excessive or unnecessary, 3) conserve energy and resources...
Light Trespass & Shielding
The City of Plymouth limits how much light a property can throw onto a neighbor's land. Zoning Code Section 21105.06, Subd. 5 sets maximum illuminance at the lot line by Lighting Zone, tightening further after curfew, and applies to any interior light source visible from off-site.
Plymouth Caps Light Spilling Onto Neighbors
Some RestrictionsPlymouth City Code § 21105.06, Subd. 5
Subd. 5.Light Trespass Limitations. The illuminance levels provided in Table 8 shall be used for enforcement should concerns of obtrusive lighting or questions of compliance arise. This provision shall apply to all exterior lighting, and to interior lighting if the light source is visible off-site. The illuminance values provided in Table 8 shall be measured at the lot line unless said lot line...
Billboard Lighting
Plymouth caps how bright an off-premises dynamic display sign can be: 7,500 nits during daylight and 500 nits between civil sunset and sunrise. Section 21155.05, Subd. 2(c) also limits the light level to no more than 0.3 foot-candelas above ambient light, measured from a distance keyed to the sign's size.
Plymouth Billboard Brightness Limits (Nits)
Some RestrictionsPlymouth City Code § 21155.05, Subd. 2(c)
(c)Dynamic display off-premises signs shall not exceed 7,500 nits (candelas per square meter) between the hours of civil sunrise and civil sunset and shall not exceed 500 nits (candelas per square meter) between the hours of civil sunset and civil sunrise as measured from the face of the sign. The light level shall not exceed 0.3 foot candelas above ambient light as measured from a pre-set dist...
Looking for Hennepin County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Plymouth city rules.
Outdoor Lighting in Hennepin County →