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.
Knox County sets no specific start/stop hours for construction noise. The zoning noise performance standards expressly exempt construction, maintenance, and site-preparation noise, so construction sound is not capped by the county decibel limits.
Knox County's zoning noise standard (Appendix A, 4.10.01) states its decibel limits 'shall not apply' to noise from the construction or maintenance of buildings or facilities, including site preparation. The Code of Ordinances contains no separate ordinance restricting the hours during which construction may occur in the unincorporated county. Nuisance-level construction noise could still be addressed under Tennessee's disorderly-conduct statute (TCA 39-17-305). Within Knoxville, the city noise ordinance sets its own construction-hour rules that do not govern unincorporated Knox County.
No county construction-hours penalty. Extreme cases may be cited as disorderly conduct under TCA 39-17-305 (Class C misdemeanor).
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