Buena Park, CA Noise Ordinances: Decibel Limits (2026)
Key Facts
- Interior standard
- 45 dB CNEL inside dwellings
- Outdoor standard
- 65 dB CNEL in open areas
- AC equipment cap
- 60 dBA exterior AC units
- Basis
- General Plan noise contours + Ch. 8.28
Summary
Buena Park's zoning code caps interior residential noise at 45 decibels CNEL and outdoor living areas at 65 decibels CNEL, and limits exterior AC units to 60 dBA.
Within each main building, a community noise equivalent level (CNEL) not exceeding forty-five decibels...In outdoor areas, a community noise equivalent level (CNEL) not exceeding sixty-five (65) decibels, except that where it is not reasonably possible to achieve this objective, the development shall be designed to provide the lowest noise level reasonably possible...
Full Breakdown
Under Buena Park's zoning code, new residential development must be designed so noise inside each dwelling doesn't exceed a community noise equivalent level (CNEL) of 45 decibels, and outdoor private or common open areas don't exceed 65 decibels CNEL; where that outdoor target can't be met, the project must instead provide at least 100 square feet of open area per unit with the lowest noise level reasonably achievable. Exterior air conditioning equipment (other than single-family window units) is separately capped at 60 dBA. Acoustical design must be based on the noise contours in the General Plan and the noise standards adopted in Chapter 8.28, which incorporates Orange County's noise control ordinance.
Violations & Fines
Residential projects that don't meet the CNEL design standards, or exterior AC units exceeding 60 dBA, can be denied approval or required to add noise mitigation.
Frequently Asked Questions
What's the noise limit inside new Buena Park homes?
Is there a decibel limit for outdoor air conditioners?
Sources & Official References
Other rules in Buena Park
California rules heatmap·Compare Buena Park to another location·View the California noise ordinances overview
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Decibel Limits in Nearby Cities
How other cities in Orange County handle decibel limits.