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Clark County, NV Noise from Specific Sources: HVAC & Mechanical Noise (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Residential nighttime cap
58 dB (mid-band)
Nonresidential nighttime cap
62 dB (mid-band)
Measurement point
property line, 4 ft high
Allowed overage
+10 dB, max 15 min/day

Summary

Clark County caps continuous mechanical noise, including HVAC and AC units, at fixed decibel levels that vary by zoning district and time of day, measured at the property line.

These county ordinances apply to unincorporated areas of Clark County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

The maximum permissible sound pressure level of any continuous, regular, or frequency source of sound produced by any activity shall be established by time period and type of zoning district per Table 30.04-12. ... Sound pressure levels shall be measured at all property lines at a height of at least 4 feet above the ground surface.

Source: Clark County Code Title 30View official code

Full Breakdown

Under the Unified Development Code's operational standards, any continuous, regular, or frequency sound source produced by an activity, which covers HVAC condensers, rooftop units, and similar mechanical equipment, is capped by Table 30.04-12. Mid-band limits run 65 dB daytime/58 dB nighttime in residential districts and 69 dB daytime/62 dB nighttime in nonresidential districts, scaled across the full octave-band spectrum. Levels are measured at every shared property line at least 4 feet above grade, and may run 10 decibels over the limit for one period up to 15 minutes per day. The rule applies countywide in unincorporated areas, including the Strip resort corridor in Paradise and Winchester.

Violations & Fines

Exceeding the decibel table is a zoning standard Clark County Code Enforcement can act on after a complaint; owners may need to add screening, mufflers, or relocate equipment to bring levels back into compliance.

Frequently Asked Questions

Does this cover my HVAC unit specifically?
Yes. Table 30.04-12 governs any continuous or regular sound source, which includes HVAC condensers and rooftop mechanical equipment, in both residential and nonresidential unincorporated zoning districts.
Where does this apply?
Only in unincorporated Clark County, including Paradise and Winchester townships along the Las Vegas Strip. Las Vegas, Henderson, North Las Vegas, and other cities set their own noise standards.

Sources & Official References

Other rules in Clark County

Noise Ordinances: Construction HoursSome RestrictionsCar Alarm LimitsLight RestrictionsGenerator NoiseSome RestrictionsBar & Nightclub NoiseSignificant RestrictionsLow-Frequency Bass LimitsSome RestrictionsDelivery Truck NoiseLight RestrictionsNoise Ordinances: Aircraft NoiseLight RestrictionsParking Rules: Curb Color RulesSome RestrictionsParking Rules: Loading ZonesSome RestrictionsAnimal Ordinances: Wildlife Rescue PermitsSignificant RestrictionsAnimal Ordinances: Veterinary Clinic ZoningSome Restrictions

All Clark County rules

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HVAC & Mechanical Noise in Cities Across Clark County

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