San Benito County, CA Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Standard
- Full sprinkler protection per NFPA
- Plans by
- C-16 licensed contractor, 4 sets
- Applies to
- New/remodeled single-family dwellings, when conditioned
- Area
- Unincorporated San Benito County only
Summary
In unincorporated San Benito County, the Fire Code's Appendix Q requires new and remodeled single-family dwellings conditioned under its standard fire provisions to be fully protected with an automatic fire sprinkler system meeting NFPA standards.
Q110.1 Residential fire sprinkler systems (Standard). (FIRE 021). The building(s) and attached structure(s) shall be fully protected with automatic fire sprinkler system(s). Installation shall be in accordance with the applicable NFPA standard. A minimum of four sets of plans for fire sprinkler systems must be submitted by a California licensed C-16 contractor and approved prior to installation. This requirement is not intended to delay issuance of a building permit. A rough sprinkler inspection must be scheduled by the installing contractor and completed prior to requesting a framing inspection.
(b) Q110.2 (RESERVED) (FIRE 022).
(c) Q110.3 (RESERVED) (FIRE 023).
(d) Q110.4 Residential fire alarm systems. (FIRE 024). The residence shall be fully protected with an approved household fire warning system as defined by NFPA 72. Plans and specifications for the household fire warning system shall be submitted by a California licensed C-10 contractor and approved prior to installation. Household fire warning systems installed in lieu of single-station smoke alarms required by the California Residential Code shall meet the requirements of the California Residential Code.
(e) Q110.5 (RESERVED) (FIRE 025).
(85) APPENDIX R: ROOFS.
(a) SECTION R101 GENERAL.
1. R101.1 Scope. Applications for the construction or remodel of any buildings shall be subject to the roofing conditions of this Appendix when
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2025 S-28: current through Ordinance 1078).
Full Breakdown
Appendix Q, Standard Fire Conditions for Single-Family Dwellings, applies to construction or remodel of one- and two-family dwellings, townhomes, modular and manufactured homes when conditioned by the Fire Code Official (§ Q101.1). Its § Q110.1 requires the dwelling and attached structures to be fully protected by an automatic fire sprinkler system meeting the applicable NFPA standard, with plans submitted by a California-licensed C-16 fire protection contractor and a rough sprinkler inspection completed before the framing inspection. Separately, the county's Fire Code amendments (§ 21.01.021(N)(27)) also require sprinklers in most new buildings countywide, subject to listed exceptions. This applies only in the unincorporated area; Hollister and San Juan Bautista enforce their own fire codes.
Violations & Fines
Building without required fire sprinklers is a Fire Code violation, punishable under the county's general penalty clause: up to $1,000 in fines, up to six months' imprisonment, or both, with each day of continued violation a separate offense (§ 1.01.007).
Frequently Asked Questions
Does San Benito County require fire sprinklers in new houses?
Do these rules apply inside Hollister?
Sources & Official References
Other rules in San Benito County
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