Scottsdale, AZ Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Sprinkler standard, Group R
- NFPA 13, 13-R, or 13-D
- Threshold
- Every new occupancy, any size
- Renovation trigger
- >50% value in 12 months
- Small shed exemption
- Under 1,500 sq ft, no habitable space
- Garage exemption cap
- Under 1,000 sq ft, existing R-3 lots
Summary
Scottsdale requires an automatic sprinkler system, installed to NFPA 13, 13-R, or 13-D, throughout every new Group R residential occupancy, regardless of square footage. A short list of accessory structures like small storage sheds and detached carports under specific size caps are exempt.
903.2 Where required. Approved automatic sprinkler systems shall be installed throughout all levels of all new Group A, B, E, F, H, I, M, R, S and U occupancies of more than zero (0) square feet. In accordance with section 903, and the fire department interpretation and applications manual, and as set in this section. ... 903.2.8 Group R and IRC. An automatic sprinkler system shall be provided throughout all Group R and IRC occupancies in accordance with NFPA 13,13-R or 13-D installation of sprinkler systems and the fire department interpretation and applications manual.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 80).
Full Breakdown
Sec. 36-18 amends International Building Code Section 903 to require approved automatic sprinkler systems throughout all levels of new Group A, B, E, F, H, I, M, R, S, and U occupancies of more than zero square feet, referencing the fire department's interpretation and applications manual for specifics (Sec. 2). 8 specifically requires Group R and IRC occupancies, meaning residential buildings including houses covered by the International Residential Code, to install a sprinkler system per NFPA 13, 13-R, or 13-D. 2 lists narrow accessory-structure exemptions: gazebos, ramadas and pool equipment for residential use; independent restroom buildings under 1,500 square feet; residential guardhouses; detached non-combustible carports under 15,000 square feet; barns and agricultural buildings under 1,500 square feet with no habitable space; storage sheds under 1,500 square feet; and detached garages under 1,000 square feet on existing R-3 parcels with non-sprinklered subdivision hydrant spacing of 700 feet or less.
15 extends the sprinkler mandate to existing buildings: additions, alterations, or repairs within a 12-month period that exceed 50 percent of the building's value must bring the whole structure up to new-building standards, and an existing Group A assembly building triggers sprinklers once work exceeds 10 percent of its value (25 percent for other occupancy types). 5).
Violations & Fines
Sprinkler requirements are enforced through the building permit and inspection process; a project cannot pass the required fire or building inspection or obtain a certificate of occupancy without a code-compliant system where Section 903.2 applies. Because Sec. 36-18 amends the adopted International Building Code, an uncorrected violation is enforceable the same as any other building code violation under the Code's general penalty, Sec. 1-8, a class 1 misdemeanor with each day of continuation a separate offense.
Frequently Asked Questions
Do new single-family homes in Scottsdale need fire sprinklers?
Are backyard sheds or carports exempt from the Scottsdale sprinkler rule?
Does remodeling an older Scottsdale home ever trigger a sprinkler requirement?
Sources & Official References
Other rules in Scottsdale
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