Outdoor Lighting in Lehi, UT (2026)
3 verified outdoor lighting rules for Lehi, Utah, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
Lehi requires all new outdoor lighting to be fully shielded and aimed downward, shuts most fixtures off by 10 p.m. or an hour after closing, and caps color temperature at 3,000 Kelvin or less to curb blue-rich light. The rules aim to cut skyglow and protect nighttime views.
Lehi Outdoor Lighting Dark-Sky Standards
Some RestrictionsLehi City Development Code § 12.110.C.1, C.4, C.6
1. Shielding of fixtures. Outdoor lighting shall be fully shielded and installed in such a manner that light is directed downward and the area of direct illumination is contained on the site. ... 2. ... Direction. Direct lighting downward and inward, towards the interior of the site, to minimize sky glow, glare, and light trespass. The allowable maximum intensity measured at a residential prope...
Light Trespass & Shielding
Lehi defines light trespass as light falling where it is not wanted or needed and caps it at 0.2 foot-candles measured at a residential property line. Residential fixtures over ten feet must be shielded from neighboring property, and no light may shine directly onto an adjacent dwelling.
Lehi Light Trespass Limit at Property Lines
Some RestrictionsLehi City Development Code § 12.110.B.5, C.2, C.7
5. Light trespass. ... When light falls where it is not wanted or needed... 2. ... Direction. Direct lighting downward and inward, towards the interior of the site, to minimize sky glow, glare, and light trespass. The allowable maximum intensity measured at a residential property line shall be 0.2 foot-candles... 7. ... Residential lighting and glare standards. Residential lighting for security...
Billboard Lighting
A converted digital billboard in Lehi can't push nighttime brightness more than 0.3 foot-candles over the sign it replaced, must carry an automatic sensor that dims the display as ambient light drops, and has to prove it with a photometric plan submitted before installation and a light reading afterward.
Lehi Digital Billboard Illumination and Dimming Limits
Some RestrictionsLehi City Development Code § 23.190.D.2.d
d. the EDS conversion adheres to the following illumination standards: (i) The off-premises or billboard EDS may use any method of illumination identified and allowed in this chapter. (ii) In no event shall an off-premises or billboard EDS increase the nighttime ambient illumination more than 0.3 foot candles when converting from an existing traditional non-electronic display face. The illumina...
Looking for Utah County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Lehi city rules.
Outdoor Lighting in Utah County →