Decibel Limits: Dearborn vs Detroit
How do decibel limits rules compare between Dearborn, MI and Detroit, MI?
Dearborn and Detroit have similar restriction levels.
Dearborn, MI
Wayne County
Dearborn uses a combination of plainly-audible standards and zoning-based decibel limits, typically 60-65 dBA daytime and 50-55 dBA nighttime at residential property lines.
View full Dearborn rules →Detroit, MI
Wayne County
Detroit City Code Chapter 31 establishes zone-based decibel limits. Residential: 55 dBA night / 65 dBA day. Commercial: 65 / 70 dBA. Industrial: 70 / 75 dBA. Measured at the receiving property line.
View full Detroit rules →Key Facts Comparison
| Fact | Dearborn | Detroit |
|---|---|---|
| Residential day limit | 60 dBA | - |
| Residential night limit | 50 dBA | - |
| Commercial day limit | 65 dBA | - |
| Measurement location | Property line of receiving use | - |
| Impulsive noise penalty | Add 5 dBA | - |
| Residential Day/Night | - | 65 / 55 dBA |
| Commercial | - | 70 / 65 dBA |
| Industrial | - | 75 / 70 dBA |
| Measurement Point | - | Receiving property line |
Highlighted rows indicate differences between cities.
Dearborn FAQ
How is dBA measured?
With a calibrated sound level meter held at the receiving property line, 4 feet above grade, following ANSI standards.
Are emergency vehicles exempt?
Yes. Sirens, alarms, and emergency equipment are excluded from decibel limits.
Detroit FAQ
Compare other topics
See how Dearborn and Detroit compare on other ordinance categories.
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