Bostonia, CA Short-Term Rentals: Noise Rules (2026)
Key Facts
- Code section
- SDCC 36.404
- Daytime limit
- 50 dBA (7am-10pm)
- Nighttime limit
- 45 dBA (10pm-7am)
- Measured at
- Property line
- Ambient adjustment
- Ambient + 3 dBA
Summary
Bostonia short-term rentals must obey San Diego County's noise ordinance (SDCC 36.404). In residential zones the one-hour average sound level limit is 50 dBA from 7 a.m. to 10 p.m. and 45 dBA from 10 p.m. to 7 a.m., measured at the property line.
It is unlawful for any person to cause or allow the creation of any noise that exceeds the one-hour average sound level limits in Table 36.404... For residential zones the limits are 50 dBA from 7 a.m. to 10 p.m. and 45 dBA from 10 p.m. to 7 a.m.
Full Breakdown
There is no STR-specific noise rule, but the County's general sound-level ordinance fully applies to rental guests. Section 36.404 makes it unlawful to create noise exceeding the one-hour average limits in Table 36.404 when measured at the property line of the source or receiving property. For lower-density residential zones the limits are 50 dBA daytime (7 a.m.-10 p.m.) and 45 dBA nighttime (10 p.m.-7 a.m.). If ambient noise already exceeds the limit, the allowable level becomes the ambient level plus three decibels. Hosts should set quiet hours in house rules to keep guests within these county limits.
Violations & Fines
Exceeding the Sec. 36.404 sound-level limits is unlawful and enforced by the County as a noise-ordinance violation, with citations and abatement; repeat problems can draw nuisance enforcement.
Frequently Asked Questions
What noise limit applies to my guests?
When are the strictest quiet hours?
Sources & Official References
Other rules in Bostonia
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Noise Rules in Nearby Cities
How other cities in San Diego County handle noise rules.