Lehi, UT Noise Ordinances: Amplified Music & Outdoor Sound (2026)

Lehi City Code section 5-3-1(B)(1)(c) lists "amplified music or other amplified sounds" as a Public Disturbance Noise, a more serious category than ordinary commercial noise because of its intensity, decibel level, constancy or proximity to residences. Any occurrence in this category is unlawful and constitutes a class C misdemeanor under section 1-4-1. Section 5-3-6(B) sets the numeric limits: continuous noises described in that category may not exceed 65 dBA during the day and 55 dBA at night as received in a residential or agricultural zone, 70 dBA day and 65 dBA night in a commercial zone, and 75 dBA day and night in a light industrial zone; intermittent amplified sound under section 5-3-6(C) gets slightly higher allowances of 70/60, 75/65 and 80/80 dBA respectively.

Section 5-3-6(E) adds a flat ceiling for places of public entertainment, including sports arenas, restaurants, bars, cafes, discotheques and dance halls: it is unlawful to sustain a sound level at or above 105 dBA at any time, and if that level is exceeded, the venue must take a mandatory ten-minute sound break at a level below 85 dBA. Measurements are taken under section 5-3-5 with a calibrated Type 1 or Type 2 sound level meter positioned at the property line, at least five feet from a wall and three feet above the ground, and a reading must exceed the applicable limit for thirty continuous seconds to count.

Permitted exceptions exist for city-sponsored events like Round-Up Week and July 4th, and for special events that obtain a written decibel-limited permit from the Mayor under section 5-3-7(B). Violations are class C misdemeanors under section 5-3-8, with each day a separate offense and fines up to $750 under section 1-4-1.