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Knox County, TN Noise Ordinances: Construction Hours (2026)

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

Construction hours in Knox County, TN, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.

Key Facts

Restricted hours (residential)
9:00 p.m. to 7:00 a.m.
Exempt outside those hours
Construction, demolition, excavation, paving
Nighttime exception requires
Permit from the building inspector
Governing section
Knox County Code § 10-92, Ch. 12, § 1205(5)
Backstop penalty
Up to $1,000.00 per day, § 1-4

Summary

Knox County's noise chapter exempts routine excavation, construction and demolition from its decibel and nuisance rules, but that exemption drops away between 9:00 p.m. and 7:00 a.m. in residential areas unless a permit is obtained from the building inspector for urgent work.

City-specific rules exist: Knoxville has its own construction hours rules that differ from Knox County's county-level regulations. If you live in Knoxville, check the city-specific page instead.

Section 1205. Exceptions. None of the terms or prohibitions contained in this chapter shall apply to or be enforced against: ... 5.Excavation, construction, demolition, repair, paving or alteration of buildings or streets. This exception shall not apply to such excavation, construction, demolition, repair, paving or alteration of buildings or streets in a residential use between the hours of 9:00 p.m. and 7:00 a.m. except in case of urgent necessity in the interest of public health and safety, and then only with a permit from the building inspector. If the building inspector should determine that the public health and safety will not be impaired by the erection, demolition, alteration or repair of any building or the excavation of streets and highways between the hours of 9:00 p.m. and 7:00 a.m., and further determines that loss or inconvenience would result to any party in interest, permission may be granted for such work to be done between the hours of 9:00 p.m. and 7:00 a.m. upon application being made at the time the permit for the work is awarded or during the progress of the work.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 23).

Full Breakdown

Knox County adopted the 2018 International Property Maintenance Code and inserted a local Chapter 12, "Noise," as part of that code under § 10-92. Section 1204 of that chapter makes it unlawful to produce any "unreasonably loud, unusual or unnecessary noise" that disturbs the peace of a neighborhood, judged by factors including the time of day, duration, and proximity to residential sleeping areas. Section 1205 then lists exceptions to the whole chapter, and item 5 covers construction directly: excavation, construction, demolition, repair, paving or alteration of buildings or streets is normally exempt from the noise rules altogether, regardless of decibel level, because that work is not held to the chapter's daytime sound limits.

m. During those hours the general noise prohibitions in the chapter apply in full to construction work, unless the contractor first obtains a permit from the building inspector for urgent work in the interest of public health and safety. The building inspector decides whether nighttime work will impair public health and safety and whether delaying the work would cause loss or inconvenience; that determination is made when the underlying work permit is issued or while the work is in progress, not after the fact. Because Chapter 12 does not carry its own numbered penalty section, a violation falls back to the county's general penalty clause at § 1-4, which applies whenever the code declares an act unlawful without stating a specific fine.

Violations & Fines

Nighttime construction noise in a residential area without a building-inspector permit is enforced as a code violation, not merely a civil infraction. Under the general penalty at § 1-4, a violation is punishable by a civil penalty of up to $1,000.00 for each separate violation, with each day the violation continues counting as a separate offense; the general sessions court judge sets the fine within that ceiling.

Frequently Asked Questions

Can contractors work at night in unincorporated Knox County?
Only with a permit. Section 1205(5) exempts construction and demolition noise from the county's noise rules generally, but that exemption does not apply in residential areas between 9:00 p.m. and 7:00 a.m. unless the building inspector issues a permit for urgent work needed to protect public health and safety.
What hours is construction noise allowed without a special permit?
Outside the 9:00 p.m. to 7:00 a.m. window in residential areas, ordinary construction, demolition, excavation, repair and paving noise is exempt from Chapter 12's noise standards entirely, so no separate noise permit is needed for daytime work.
Who decides if emergency nighttime construction can proceed?
The county building inspector. Section 1205(5) lets the inspector authorize work between 9:00 p.m. and 7:00 a.m. only after finding that public health and safety will not be impaired and that delaying the work would cause loss or inconvenience to a party in interest.
What's the penalty for violating Knox County's construction noise hours?
Chapter 12 has no separate fine schedule, so the county's general penalty under § 1-4 applies: up to $1,000.00 per violation, with each day of continued nighttime work treated as a separate, additional offense.

Sources & Official References

Other rules in Knox County

All Knox County rules

How Knox County compares: Cities with the Strictest Construction Hours·Compare Knox County to another location·View the Tennessee noise ordinances overview

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