South Jordan, UT Outdoor Lighting: Dark Sky Rules (2026)

While Utah has no statewide dark-sky preemption or mandate, South Jordan includes lighting standards within its zoning code (Title 17) and in design standards for planned developments like Daybreak. Typical provisions require outdoor light fixtures to be full-cutoff or fully shielded so that no light is emitted above the horizontal plane of the fixture. Maximum illuminance levels at property lines are commonly limited (e.g., 0.1–0.5 foot-candles at residential property lines). Wall packs, security lights, and parking lot lighting must be shielded and aimed downward. Canopy lights (gas station, drive-through) must have flat-lens fixtures recessed in the canopy. Flashing, blinking, and searchlight-type lighting is generally prohibited. Holiday/seasonal decorative lighting is typically exempt for defined periods (e.g., Nov 15–Jan 15). Residential lighting is more loosely regulated but must not cause "light trespass" onto neighboring properties. HOA architectural guidelines commonly add stricter requirements. Violations are enforced via Code Enforcement and can require fixture replacement or aiming adjustments.