Charleston, SC Noise Ordinances: Decibel Limits (2026)
Key Facts
- Residential-adjacent limit
- 67 dBA at lot line
- Non-residential-adjacent limit
- 72 dBA at lot line
- Applies in districts
- Light Industrial and Upper Peninsula only
- Covered use categories
- 26, 30-39, 7692 (manufacturing)
- Vibration cap
- 65 velocity decibels at lot line
- Measurement distance
- 1,000 feet from roads/rail lines
Summary
Charleston's zoning code sets a hard numeric noise ceiling only for certain LI and Upper Peninsula district manufacturing conditional uses: no more than 67 decibels (dBA) at lot lines touching residential zones, or 72 dBA at lot lines touching non-residential zones, measured at least 1,000 feet from roads and rail lines under Section 54-207(i)(3)(a).
3.Within the LI and UP districts, Principal Use categories 26, 30, 31, 32, 34, 35, 36, 37, 39, and 7692, shall be permitted if the Zoning Administration finds that the use meets the following Performance Standards:a)A total ambient noise level of no more than 67 decibels (dBA) is created at all external lot lines adjacent to residential zoning districts or 72 decibels at all external lot lines adjacent to non-residential zoning districts, measured at least 1,000 feet from adjacent roadways and rail lines if possible;b)A total vibration level of no more than 65 velocity decibels (VdB) is created at any internal lot line;c)Glare will be less than 50 foot lamberts or one-half of a foot candle on land within residential zoning districts when measured at the lot line; andd)All existing South Carolina State air pollution control regulations are met to insure no significant adverse air quality or odor impacts.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 114 | Zoning: Supplement 25).
Full Breakdown
This is a conditional-use performance standard, not a citywide noise ordinance. It applies only to Principal Use categories 26, 30, 31, 32, 34, 35, 36, 37, 39 and 7692, SIC-coded manufacturing and processing uses seeking approval in the Light Industrial (LI) and Upper Peninsula (UP) districts. The Zoning Administration must find the proposed use meets the standard before approving the conditional use. The same subsection pairs the noise cap with companion limits: vibration may not exceed 65 velocity decibels (VdB) at any internal lot line, glare on residential land is capped at 50 foot-lamberts or one-half foot-candle measured at the lot line, and the use must meet all existing South Carolina state air pollution control regulations for odor and air quality.
m. Saturdays with no work on Sundays or city holidays, but that general ordinance never assigns a decibel figure. Section 54-207(i)(3)(a) is the only place in either code where a numeric dBA ceiling appears.
Violations & Fines
Failing the 67/72 dBA standard blocks conditional-use approval outright, since the Zoning Administration must make the compliance finding before permitting the use. Once approved, exceeding the standard is a Section 54-950 zoning misdemeanor punishable by a fine and/or incarceration, with each day of continued violation a separate offense, and the zoning administrator can withhold permits or issue a stop order against the operation.
Frequently Asked Questions
Does Charleston have a citywide decibel limit for noise?
Does a non-manufacturing business ever get cited for noise in Charleston?
Why does the 67/72 dBA rule mention a 1,000-foot measurement distance?
Sources & Official References
Other rules in Charleston
Compare Charleston to another location·View the South Carolina noise ordinances overview
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Decibel Limits in Nearby Cities
How other cities in Charleston County handle decibel limits.