Rock Hill, SC Noise Ordinances: Construction Hours (2026)
Construction hours in Rock Hill, SC, sometimes called construction noise rules or contractor work-hour ordinances, set when contractors can run power tools, hammers, and heavy equipment.
Key Facts
- Heavy-equipment curfew
- 9:00 p.m.-7:00 a.m., § 20-162(3)
- Daytime construction window
- 7:00 a.m.-8:00 p.m., § 20-162(18)(e)
- Daytime dB cap
- 75 dB(A) at nearest residence
- Night work exception
- Only by city council permission
- Max penalty
- $500 fine or 30 days, § 1-11
Summary
Rock Hill bars loud building-operation equipment, piledrivers, pneumatic hammers, derricks and similar apparatus, between 9:00 p.m. and 7:00 a.m. in mostly residential blocks unless council permits it. A separate exception lets construction and repair work run 7:00 a.m. to 8:00 p.m. so long as it stays at or under 75 dB(A) measured from the nearest residential property.
(3) Building operations. In conducting any building operations between the hours of 9:00 p.m. and 7:00 a.m., to operate or use any piledrivers, steam shovels, pneumatic hammers, derricks, steam or electric hoists or other apparatus, the use of which is attended with loud or unusual noise, in any block in which more than half of the buildings on either side of the street are used exclusively for residence purposes, except by permission from the council. ... e. Sound produced by the erection, excavation, construction, demolition, alteration or repair work, or the permitting or causing thereof, of any building or other structure, or the operation or the permitting or causing the operation of any tools or equipment used in such activity conducted between the hours of 7:00 a.m. and 8:00 p.m. and which activity did not produce a sound exceeding 75 dB(A) when measured from the nearest residential property where the sound is being received;
Full Breakdown
City Code § 20-162(3) singles out building operations among prohibited noises: running piledrivers, steam shovels, pneumatic hammers, derricks, steam or electric hoists "or other apparatus, the use of which is attended with loud or unusual noise" between 9:00 p.m. and 7:00 a.m., in any block where more than half the buildings on either side of the street are used exclusively for residences, is unlawful except by permission from city council. Separately, § 20-162(18) sets a general 60-decibel cap at the lot line for residentially zoned areas and areas within 300 feet of a residence, but carves out an exception at § 20-162(18)(e) for construction: sound from "erection, excavation, construction, demolition, alteration or repair work" or operation of tools and equipment used in that work is exempt from the 60 dB cap when it happens between 7:00 a.m. and 8:00 p.m. and does not exceed 75 dB(A) measured from the nearest residential property receiving the sound.
Read together, the two sections work as complementary limits: the nighttime ban on heavy equipment in residential blocks runs 9:00 p.m. to 7:00 a.m., while daytime work (7:00 a.m. to 8:00 p.m.) is allowed even above the ordinary 60 dB residential ceiling, capped instead at 75 dB(A). Work that runs later than 8:00 p.m. or exceeds 75 dB(A) during the day loses the exception and falls back under the general nuisance-noise prohibition of § 20-161. Enforcement runs through the Rock Hill Police Department and Rock Hill Municipal Court.
Violations & Fines
A construction-noise violation of § 20-162(3) or the § 20-162(18)(e) exception is punished under the Code's general penalty, § 1-11: up to a $500.00 fine, up to 30 days imprisonment, or both, and each day the violation continues is a separate offense. Council permission under § 20-162(3) is the only route to work past 9:00 p.m. with heavy equipment in residential blocks.
Frequently Asked Questions
What hours can construction equipment run in Rock Hill?
Is construction noise exempt from Rock Hill's 60-decibel residential limit?
Can a contractor get permission to work past 9 p.m. in Rock Hill?
Sources & Official References
Other rules in Rock Hill
Compare Rock Hill to another location·View the South Carolina noise ordinances overview
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