Decibel Limits: Newport Beach vs Santa Ana
How do decibel limits rules compare between Newport Beach, CA and Santa Ana, CA?
Newport Beach and Santa Ana have similar restriction levels.
Newport Beach, CA
Orange County
Newport Beach establishes specific decibel thresholds under NBMC Chapter 10.26 that vary by zoning district and time of day. Residential zones allow approximately 55 dBA daytime and 50 dBA nighttime at the property line.
View full Newport Beach rules →Santa Ana, CA
Orange County
Santa Ana establishes quantitative noise limits under SAMC Chapter 18, Article VI (Noise Control). Exterior residential limits are 55 dBA daytime (7 AM-10 PM) and 50 dBA nighttime (10 PM-7 AM), with a 5 dB penalty for impact noise, music, or simple tones.
View full Santa Ana rules →Key Facts Comparison
| Fact | Newport Beach | Santa Ana |
|---|---|---|
| Residential Day | ~55 dBA at property line | - |
| Residential Night | ~50 dBA at property line | - |
| Measurement | A-weighted at boundary | - |
| Exemptions | Construction, emergency | - |
| Code Enforcement | (949) 644-3215 | - |
| Residential Day (7AM-10PM) | - | 55 dBA exterior |
| Residential Night (10PM-7AM) | - | 50 dBA exterior |
| Interior Standard | - | 45 dBA all times |
| Music/Tone Correction | - | -5 dB from standard |
| Code Section | - | SAMC §18-312, §18-313 |
Highlighted rows indicate differences between cities.
Newport Beach FAQ
What are the residential noise limits?
Approximately 55 dBA during daytime (7 AM to 10 PM) and 50 dBA during nighttime (10 PM to 7 AM), measured at the property line under NBMC Chapter 10.26.
How is noise measured?
Using A-weighted decibel meters at the property boundary of the receiving property. Adjustments apply for tonal or impulsive noise characteristics.
Is construction noise exempt?
Yes, during permitted hours: 7 AM to 6:30 PM weekdays, 8 AM to 6 PM Saturdays. No construction on Sundays or holidays.
Santa Ana FAQ
What are the noise limits in Santa Ana?
Residential exterior limits are 55 dBA from 7 AM to 10 PM and 50 dBA from 10 PM to 7 AM. Interior limits are 45 dBA at all times. Music or tonal noise gets a 5 dB stricter standard.
How is noise measured in Santa Ana?
Noise is measured at the property line of the receiving property using A-weighted sound level meters meeting ANSI specifications per SAMC Section 18-312.
Compare other topics
See how Newport Beach and Santa Ana compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool