Grand Junction, CO Noise Ordinances: Decibel Limits (2026)

Grand Junction's zoning code does not set a single citywide decibel limit; instead it applies a 65-decibel property-line ceiling as a performance standard specific to land uses in the city's Industrial zone districts. Under § 21.03.070(c)(1), no person may occupy, maintain, or allow any use in an Industrial district (Industrial/Office Park Retired, Industrial Light I-1, or Industrial General I-2, established at § 21.03.070) without continuously meeting minimum standards for vibration, smoke, odor, noise, glare, wastes, fire hazards and hazardous materials. Section 21.03.070(c)(3) then sets the specific noise rule: the owner and occupant of the property must regulate uses and activities so that sound never exceeds 65 decibels at any point on the property line, measured at the boundary rather than inside the building or at a neighboring residential lot.

The same section authorizes a Conditional Use Permit to set higher standards where a use presents a greater impact than the baseline. Similar 65-decibel property-line figures recur elsewhere in the zoning code's other performance standards, showing 65 decibels at the property line is the code's baseline numeric noise ceiling wherever a zoning performance standard applies it. Grand Junction's separate Title 8.16 Noise ordinance addresses noise more broadly citywide, but the Chapter 21.03.070 standard is the specific numeric decibel limit tied to land use and zone district for industrial property.