Westminster, CO Fire Regulations: Smoke Detectors (2026)
Key Facts
- Governing section (multi-family/commercial)
- Municipal Code § 11-9-5(D)
- Governing section (1-2 family homes)
- IRC § R314.1.2, City-added
- Standard
- UL 217 alarms per NFPA 72
- Rental housing
- Required in all units, cert. required for STRs
- Penalty
- Misdemeanor, per-day violation
Summary
Westminster's building code requires listed smoke alarms in every building it regulates, installed to UL 217 and NFPA 72 standards, under Section 11-9-5(D), which locally replaces International Building Code Section 907.2.11. For one- and two-family homes, the City's parallel amendment to the Residential Code, Section R314.1.2, requires smoke and combination smoke/carbon monoxide alarms installed exactly per their listing and the manufacturer's instructions.
907.2.11 Single- and multiple-station smoke alarms. Listed single- and multiple-station smoke alarms complying with UL 217 shall be installed in accordance with Sections 907.2.11.1 through 907.2.11.7, NFPA 72 and the manufacturer's published instructions.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 12).
Full Breakdown
Section 11-9-5(D) of the Westminster Municipal Code replaces International Building Code Section 907.2.11 to read: "Listed single- and multiple-station smoke alarms complying with UL 217 shall be installed in accordance with Sections 907.2.11.1 through 907.2.11.7, NFPA 72 and the manufacturer's published instructions." That provision governs new construction and alterations to buildings covered by the Building Code, including apartments, hotels, and other multi-family or commercial occupancies.
For detached one- and two-family homes and townhouses, which fall under the separately adopted International Residential Code rather than the Building Code, the City added Section R314.1.2, requiring that "smoke alarms and combination smoke and carbon monoxide alarms shall be installed in accordance with their listing and the manufacturer's instructions." Rental housing gets an added layer of enforcement: the Rental Property Maintenance provisions of the Municipal Code separately require that "smoke detectors shall be installed in all units as required by the building codes," and short-term rental license applicants must sign an affidavit certifying that operational smoke detectors are in place before the City will issue a Short-Term Rental license. Installation and testing must follow the alarm manufacturer's published instructions and NFPA 72 placement rules.
Violations & Fines
Failing to install or maintain required smoke alarms is enforced as a Building Code violation: it is a misdemeanor under Section 1, Chapter 8, Title I of the Municipal Code, punishable by fine or imprisonment, with each day the deficiency continues charged separately. For rental units, missing smoke detectors can also void a short-term rental license, since the operator must certify life-safety compliance on the license application itself.
Frequently Asked Questions
What standard must Westminster smoke alarms meet?
Do Westminster rental units need smoke detectors?
Are combination smoke/carbon monoxide alarms allowed in Westminster homes?
Sources & Official References
Other rules in Westminster
Compare Westminster to another location·View the Colorado fire regulations overview
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Smoke Detectors in Nearby Cities
How other cities in Adams County handle smoke detectors.