Maricopa, AZ Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Applies to
- New Group R (residential) buildings
- Exemption
- 1-2 family homes under 5,000 sq ft
- Reduced exemption
- Under 3,600 sq ft if water/access limited
- Never exempt
- Build-to-Rent multifamily and self-preservation care facilities
- Penalty
- Class 1 misdemeanor; civil fine up to $10,000
Summary
Maricopa requires automatic sprinklers throughout new Group R (residential) buildings, including "Build for Rent" multifamily projects, but exempts smaller one- and two-family homes under a locally amended fire code provision.
An automatic sprinkler system installed in accordance with Section 903.3 shall be provided throughout all buildings with a Group R fire area, to include "Build for Rent" type multifamily project, except as follows: Exception: Automatic sprinkler systems shall not be required in one- and two-family dwellings, R-3 and R-4 occupancies, condition 1, with 10 or fewer person's receiving care, occupancies that are less than 5,000 square feet when there is adequate water supply and an approved fire apparatus access road.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 26-10, passed April 21, 2026).
Full Breakdown
Maricopa's 2024 International Fire Code adoption rewrites IFC Section 903.2.8 to require sprinklers throughout every new building with a Group R (residential) fire area, expressly including "Build for Rent" multifamily projects. One- and two-family homes and R-3/R-4 care occupancies with 10 or fewer clients are exempt if under 5,000 square feet with adequate water supply and an approved fire apparatus access road; where water supply or access is limited, that exemption shrinks to 3,600 square feet. Care facilities housing residents incapable of self-preservation are never exempt, regardless of size. Enforcement runs through the building permit and inspection process under Maricopa City Code Chapter 15.05.
Violations & Fines
Building without required sprinklers is a Class 1 misdemeanor; civil penalties run up to $1,000 for an individual or $10,000 for an enterprise, with each day a separate offense.
Frequently Asked Questions
Does Maricopa require fire sprinklers in new single-family homes?
Are Build-to-Rent or multifamily projects exempt?
What sprinkler standard governs the installation?
Sources & Official References
Other rules in Maricopa
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