Santa Cruz County, CA Building Safety: Carbon Monoxide Detectors (2026)
Key Facts
- Governing chapter
- SCCC Ch. 12.32 (Ord. 5369, 2021)
- Detector required
- Battery-operated CO detector, each level
- Trigger
- Fuel-burning appliance or attached garage
- Applies to
- Owner-built Last Chance CZU rebuilds only
- Enforced at
- Building Official final inspection, § 12.32.150
- Program status
- Pilot, set to sunset May 28, 2024
Summary
Santa Cruz County requires a battery-operated carbon monoxide detector on every level of a home built under the county's Limited-Density Owner-Built Rural Dwelling program, SCCC Chapter 12.32, whenever the dwelling has a fuel-burning appliance or an attached garage. The chapter covers only rebuilds in the Last Chance area destroyed by the 2020 CZU fire; it does not set the CO detector rule for standard construction elsewhere in the unincorporated county.
No dwelling or appurtenant structure constructed pursuant to this chapter shall be required to be connected to a source of electrical power, or wired, or otherwise fitted for electrification. An approved battery-operated smoke detector (or combination detector) with a 10-year battery shall be installed in each room used for sleeping. An approved battery-operated carbon monoxide detector (or combination detector) shall be installed on each level of the structure if there are fuel burning appliances or an attached garage associated with the dwelling.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 5004302; v11 updated 2026-05-19; through 05-19-2026).
Full Breakdown
32 SCCC, adopted by Ordinance 5369 in 2021, is the county's alternative building-standards program for owner-built dwellings in the unincorporated area known as Last Chance, reached by Last Chance Road, where homes were destroyed by the 2020 CZU August Lightning Complex fires and where no utility service exists or is projected. 260, the section still sets a life-safety floor: an approved battery-operated carbon monoxide detector shall be installed on each level of the structure if there are fuel burning appliances or an attached garage. The same section requires a battery-operated smoke detector with a 10-year battery in every room used for sleeping, regardless of whether the home has any electrical wiring at all.
110 if the design is unusual. 300 designates the whole chapter a pilot program originally set to sunset on May 28, 2024 unless extended, and it remains part of the current code. 220.
Violations & Fines
A missing carbon monoxide detector blocks sign-off at the required final inspection under SCCC § 12.32.150, and the Building Official will not authorize the certificate of occupancy described in § 12.32.180 until the structure passes. Temporary occupancy before the certificate issues is allowed under § 12.32.190 only if the home does not endanger the life, health, or safety of the occupants or the public, and occupants of an unfinished structure assume sole responsibility for that risk.
Frequently Asked Questions
Does every home in unincorporated Santa Cruz County need a CO detector under this rule?
Does the CO detector need to be hardwired?
Where must the detector be placed?
Who checks compliance before move-in?
Sources & Official References
Other rules in Santa Cruz County
California rules heatmap·Compare Santa Cruz County to another location·View the California building safety overview
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