Decibel Limits: Downers Grove vs Naperville
How do decibel limits rules compare between Downers Grove, IL and Naperville, IL?
Downers Grove, IL
DuPage County
No data available yet for Downers Grove.
Naperville, IL
DuPage County
Naperville sets decibel limits by zoning district under Title 6, Chapter 14. Noise is measured at the property line with ANSI S1.4-1983 compliant meters. Limits range from residential thresholds up to 80 dBA for industrial zones.
View full Naperville rules →Key Facts Comparison
| Fact | Downers Grove | Naperville |
|---|---|---|
| Code Section | - | §6-14-4 |
| Equipment Standard | - | ANSI S1.4-1983 |
| Measurement Point | - | Property line |
| Industrial Cap | - | 80 dBA |
Highlighted rows indicate differences between cities.
Downers Grove FAQ
No FAQs available.
Naperville FAQ
How are decibel limits enforced in Naperville?
Noise is measured at the property line using ANSI S1.4-1983 compliant sound level meters. Different zoning districts have different maximum decibel levels listed in Table 1 of Section 6-14-4.
Are there different limits for day and night?
Yes. Quiet hours from 7 PM to 7 AM impose stricter decibel limits across all zoning districts. Daytime limits are more permissive.
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