Knoxville's Noise Ordinances: The Rules That Matter

Every city handles noise ordinances a little differently. In Knoxville, Tennessee, there are 7 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Decibel Limits

Knoxville limits sound measured at the property line to 65 dB(C) for residential daytime, 60 dB(C) overnight, and 80 dB(C) for commercial and industrial uses under City Code § 18-3.

Key details: Residential daytime cap: 65 dB(C). Residential overnight cap: 60 dB(C). Commercial cap: 75-80 dB(C). Industrial cap: 80 dB(C) flat. Measured at: Property boundary, 5 ft up.

Enforced by Knoxville Police; § 18-3 violations carry the Code's general penalty: up to a $50 fine, $500 in administrative costs, and/or 30 days in jail per offense.

Leaf Blower Rules

Knoxville exempts leaf blowers and other domestic power equipment, like mowers, trimmers and saws, from its noise ordinance only between 8:00 a.m. and 9:00 p.m. Outside that window, the equipment loses its exception and is subject to the city's standard decibel limits like any other noise source.

Key details: Permitted leaf blower hours: 8:00 a.m. to 9:00 p.m.. Covered equipment: mowers, blowers, trimmers, saws, sanders, drills. Outside those hours: subject to standard 60-65 dB(C) limits. Continuing violation rule: new offense every 30 minutes (§18-6). Warning required first?: no (§18-7).

Running domestic power equipment like a leaf blower outside the 8:00 a.m. to 9:00 p.m. window is a Chapter 18 noise violation. The chapter sets no unique fine, so it falls under the general penalty, Sec. 1-9: up to a fifty-dollar fine, repayment of administrative correction costs up to five hundred dollars, and/or up to thirty days in jail, with a fresh offense every thirty minutes a violation continues under Sec. 18-6.

If you are coming from a city with tighter rules, you will find Knoxville gives residents more flexibility on leaf blower rules.

Amplified Music & Outdoor Sound

Knoxville requires a special noise permit from the office of special events for amplified sound that exceeds normal limits, restricted to Friday, Saturday or holidays, 7 a.m.-10 p.m., and capped at two permits per premises per year.

Key details: Issuing office: Office of special events. Eligible days: Fri, Sat, or federal holiday. Hours allowed: 7:00 a.m. to 10:00 p.m.. Annual cap: Two permits per premises per year.

Noncompliance with permit conditions voids it and exposes the applicant to full Chapter 18 penalties: a fine up to $50, up to $500 in costs, and/or up to 30 days in jail (§§ 18-9(e), 1-9).

Compared to other cities, Knoxville takes a harder line on amplified music & outdoor sound. The enforcement and penalty structure reflects that.

Construction Hours

Knoxville exempts construction, demolition and paving from its noise standards: except in residential areas between 6:00 p.m. and 7:00 a.m., when work needs an urgent-necessity permit from the building inspector under § 18-8(5).

Key details: Normally exempt: Construction/demolition/paving noise. Residential curfew: 6:00 p.m.-7:00 a.m.. After-hours option: Building inspector permit. Pneumatic tools: Must be muffled, § 18-4(c)(8).

Working past 6:00 p.m. in a residential area without an inspector's permit, or running unmuffled pneumatic equipment, is cited under Chapter 18's general penalty: up to a $50 fine, $500 in costs, and/or 30 days in jail per offense.

This is not one of those rules that cities tend to ignore. Knoxville actively enforces its construction hours requirements.

Vehicle Noise

Knoxville bans playing a car radio, tape, CD or similar audio device loud enough to be heard fifty feet away, whether the vehicle is on a public street or parked on private property.

Key details: Audibility limit: 50 feet from vehicle/property line. Covers: radio, tape, CD, similar devices. Bass counts: reverberation alone is a violation. Muffler rule: required, no cutouts/bypass (§ 17-383).

Playing vehicle audio audible beyond fifty feet, or running a vehicle without a working muffler or with a cutout/bypass device, is a citable noise violation under Chapter 18 and § 17-383.

Quiet Hours

Between midnight and 7:00 a.m., Knoxville drops its residential noise ceiling to 60 dB(C), five decibels quieter than daytime, under City Code § 18-3(a)(1).

Key details: Quiet hours: Midnight-7:00 a.m.. Night limit: 60 dB(C), residential. Day limit: 65 dB(C), residential. Impulsive sound cap: 80 dB(C), all hours.

Sound over 60 dB(C) at the property line between midnight and 7:00 a.m. is cited under Chapter 18's general penalty: up to a $50 fine, $500 in costs, and/or 30 days in jail per offense.

Barking Dogs

Knoxville bans keeping any animal or bird whose frequent barking, howling or crying disturbs a neighbor's comfort and repose: one of eight noises the city names as automatically unreasonable under § 18-4(c).

Key details: Governing section: § 18-4(c)(5). Standard: Frequent/long-continued noise. No dB threshold: Nuisance-based, not numeric. Applies to: Any animal or bird.

Cited under Chapter 18's general penalty (§ 1-9): up to a $50 fine, up to $500 in costs, and/or 30 days in jail per offense; each recurring half hour counts as a separate offense under § 18-6.

The Bottom Line

Knoxville is tougher than many cities when it comes to noise ordinances. Out of the 7 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Knoxville, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

These rules come from Knoxville's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.