Winnebago County, WI Noise Ordinances: Aircraft Noise (2026)
Key Facts
- District
- Traffic Pattern (Air-3)
- Extra reduction required
- 5 dB above state code
- Applies to
- new residential buildings only
- Certified by
- WI-licensed architect or engineer
- Covers
- parts of Oshkosh, Black Wolf, Nekimi
Summary
New homes built in Winnebago County's Wittman Regional Airport Traffic Pattern (Air-3) District must add 5 decibels of extra noise reduction beyond the state building code, certified by a licensed architect or engineer before occupancy.
All new residential buildings shall be designed and constructed to provide a minimum of five (5) decibels extra noise reduction over the minimum standards contained in the state building codes. Certification of this requirement shall be provided by a registered architect or engineer who is licensed in the State of Wisconsin at the time of permit application up to and including the day after occupancy permit has been issued by the permit-issuing authority.
(c) Existing Property Uses: The following restrictions and regulations shall apply to existing uses in Air-3. All existing property uses allowed by the current zoning classifications, within the zones defined by this
Full Breakdown
Winnebago County's Wittman Regional Airport Zoning Code sets a Traffic Pattern (Air-3) District around the airport, covering parts of the City of Oshkosh and the Towns of Black Wolf and Nekimi. Any new residential building in that district must be designed and built to cut interior noise by 5 decibels more than the minimum required by the state building code. A Wisconsin-licensed architect or engineer must certify that the extra sound insulation is in place, from the permit application through the day after the occupancy permit is issued. The rule applies only inside the mapped Air-3 zone, not county-wide.
Violations & Fines
A Chapter 24 violation draws a forfeiture citation: $200 for missing a required permit, $300 for other violations, plus court costs; nonpayment can mean up to 6 months in county jail (Ch. 24 § 24.6-11).
Frequently Asked Questions
Does this apply everywhere in Winnebago County?
Who has to certify the extra noise reduction?
Sources & Official References
Other rules in Winnebago County
Compare Winnebago County to another location·View the Wisconsin noise ordinances overview
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