Commercial properties abutting residential zones in McKinney must keep sound below 65 dBA at the shared property line, lowering to 55 dBA between 10 PM and 7 AM. Loading dock and HVAC operations require mitigation if they exceed limits.
Under McKinney Code Chapter 62 and the Unified Development Code performance standards, commercial and light-industrial properties sharing a boundary with residentially zoned land must limit sound to 65 dBA (daytime, 7 AM to 10 PM) and 55 dBA (nighttime, 10 PM to 7 AM) measured at the shared property line. The standard applies to HVAC condenser units, rooftop refrigeration on grocery and restaurant anchors, drive-thru speakers, amplified outdoor dining music, mechanical compactors, delivery trucks at loading docks, and auto-shop impact tools. Measurements are taken with a calibrated Type-2 sound level meter on the residential side of the line. TX Penal Code 42.01 Disorderly Conduct provides a parallel state remedy once levels reach 85 dB after an officer warning. Businesses near Virginia Parkway, Custer Road, and Eldorado Parkway that adjoin subdivisions like Stonebridge Ranch are required to install acoustic screens, reorient dock doors, adjust delivery windows, or install variable-speed HVAC to achieve compliance. New commercial construction next to residential is required to submit noise-mitigation plans at site plan review. Enforcement runs through Code Compliance and Building Inspections.
Class C misdemeanor. Daily fines up to $500 residential/$2,000 health and safety; persistent violations can trigger Certificate of Occupancy review or nuisance abatement action.
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Side-by-side rule comparisons with other cities in Collin County.
See how other cities in Collin County handle industrial noise.
See how McKinney's industrial noise rules stack up against other locations.
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