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Building Safety in Arizona (2026)

150 rules on the books across Arizona, 27 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

Fire Sprinkler Requirements

When residential and commercial buildings must install fire sprinkler systems, including new-construction triggers and major-renovation thresholds.

Glendale

Heavy Restrictions

Glendale requires an approved automatic sprinkler system throughout the entire building for every newly constructed…

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Mesa

Heavy Restrictions

Mesa's amended Building Code requires an approved automatic fire sprinkler system in all areas of new buildings and…

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Chandler

Significant Restrictions

Chandler's amended Building Code requires automatic fire sprinklers throughout every Group R occupancy, apartments…

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Peoria

Significant Restrictions

Every new single-family or duplex home in Peoria (Group R-3) must be built with a residential fire sprinkler system…

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Goodyear

Some Restrictions

Goodyear requires automatic sprinklers throughout every Group R building, including Build-for-Rent multifamily…

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Lake Havasu City

Some Restrictions

Lake Havasu City's subdivision code requires fire sprinklers in every home built on a cul-de-sac street longer than 400…

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Maricopa

Some Restrictions

Maricopa requires automatic sprinklers throughout new Group R (residential) buildings, including "Build for Rent"…

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Prescott Valley

Some Restrictions

The Town of Prescott Valley, Arizona, does not print its own sprinkler thresholds for houses. Town Code § 7-03-030(C)…

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Queen Creek

Some Restrictions

The Town of Queen Creek amends International Fire Code Section 903.2 to require automatic sprinklers throughout all new…

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Sahuarita

Some Restrictions

Sahuarita's I-1 Light Industrial zone requires sprinkler systems in every hotel, motel, lodge, or inn permitted there…

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Scottsdale

Some Restrictions

Scottsdale requires an automatic sprinkler system, installed to NFPA 13, 13-R, or 13-D, throughout every new Group R…

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Tempe

Some Restrictions

Tempe's amended 2024 Fire Code requires an automatic sprinkler system throughout every Group R residential fire area…

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Maricopa County

Light Restrictions

Unincorporated Maricopa County's own building code sets no fire-sprinkler mandate for homes: the Local Additions and…

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Yavapai County

Light Restrictions

Yavapai County does not mandate whole-house fire sprinklers in the unincorporated area. Its amended IRC only requires…

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Flagstaff

Few Restrictions

In the City of Flagstaff, new one- and two-family homes are never required to have automatic fire sprinklers: Arizona…

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Pinal County

Few Restrictions

Pinal County cannot require a fire sprinkler system in an accessory dwelling unit or force it onto a commercial…

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Yuma

Few Restrictions

Yuma does not require automatic fire sprinklers in new one- and two-family homes. The city's 2024 IRC amendments strike…

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Childcare Center Rules

Building safety standards specific to family childcare homes and centers, including egress, sprinklers, lead and asbestos clearances, and outdoor play standards.

Casa Grande

Significant Restrictions

In the City of Casa Grande, a day care center operating as a conditional use must meet the numeric standards the…

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Peoria

Significant Restrictions

A Peoria day care serving five or more children in a residential district must hold Arizona Department of Health…

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Sahuarita

Significant Restrictions

A child care center attached to a religious use, school or membership organization needs a Type 1 conditional use…

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Yuma

Significant Restrictions

A day care serving six or more children in a Yuma residential zone needs a conditional use permit and must meet fixed…

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Flagstaff

Some Restrictions

In the City of Flagstaff, home day cares are capped at eight people total and must screen outdoor play areas with a…

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Maricopa

Some Restrictions

Maricopa zoning sets siting, hours, and licensing standards for day care facilities, whether stand-alone centers or…

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Phoenix

Some Restrictions

Phoenix zoning allows home-based child care for up to six dependents by right; seven or more requires a use permit, a…

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Prescott Valley

Some Restrictions

In the Town of Prescott Valley, Arizona, a child day care facility serving not less than five and no more than ten…

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Queen Creek

Some Restrictions

Commercial daycare facilities in the Town of Queen Creek must hold a fire operational permit and pass a thorough Fire…

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Scottsdale

Some Restrictions

Scottsdale's zoning code ties a day care center's location to its distance from housing: under Table 11.201.A of §…

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Sedona

Some Restrictions

Sedona's building code lets a small in-home day care operate as a residential building instead of an institutional one…

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Tucson

Some Restrictions

Tucson's Unified Development Code sets detailed siting standards for child care centers in residential and office…

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Yavapai County

Some Restrictions

Yavapai County's amended building code sets the occupancy class for small child care group homes in the unincorporated…

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Green Building Code

CALGreen and equivalent state green building codes, plus reach codes that go further (electric-only new construction, EV-readiness, low-VOC materials).

Chandler

Some Restrictions

Chandler has no separate green-building ordinance; its energy-efficiency mandate is the 2024 International Energy…

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Scottsdale

Some Restrictions

Scottsdale adopted the 2021 International Green Construction Code by reference, applying sustainability, water, energy…

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Sedona

Some Restrictions

Sedona's adopted 2018 energy code requires new construction with more than nine parking spaces to make 5 percent of…

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Tucson

Some Restrictions

Tucson does not mandate green building citywide, but a developer using the Flexible Lot Development Maximum Density…

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Yuma

Some Restrictions

Yuma's energy-efficiency standard is the 2009 International Energy Conservation Code, adopted by City Code § 150-020…

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Flagstaff

Light Restrictions

In the City of Flagstaff, a residential development can earn a density bonus by achieving bronze-level National Green…

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Pima County

Light Restrictions

In unincorporated Pima County, a legally nonconforming building doesn't have to be brought up to current zoning…

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Gilbert

Few Restrictions

Gilbert has adopted a green building standard, but it is optional. Code of Gilbert Sec. 10-40 adopts the "International…

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Glendale

Few Restrictions

Glendale adopted the 2024 International Green Construction Code as Sec. 9-26 of its municipal code, but the city made…

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Maricopa

Few Restrictions

Maricopa has no mandatory green building code: its Sustainable Development Incentive Program lets developers earn…

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Maricopa County

Few Restrictions

Unincorporated Maricopa County has adopted the International Green Construction Code, but only as a voluntary standard…

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Tempe

Few Restrictions

Tempe adopted the 2024 International Green Construction Code as Article XI of City Code Chapter 8, but Sec. 8-1100…

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Building Permits

When a building permit is required, new work, renovations, reroofing, decks, the small-project exemptions, and what unpermitted work costs when it surfaces at sale or inspection.

Avondale

Some Restrictions

Avondale adopts the 2024 International Building Code and nine companion I-Codes by reference as its Building Codes and…

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Buckeye

Some Restrictions

Buckeye's local amendment to the adopted International Building Code exempts minor, non-structural interior repairs…

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Casa Grande

Some Restrictions

In the City of Casa Grande, no one may erect, alter, repair, move, demolish or change the occupancy of any building, or…

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Coconino County

Some Restrictions

Coconino County requires a Building Permit or Engineering Permit before any construction, reconstruction, alteration…

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Flagstaff

Some Restrictions

In the City of Flagstaff, most construction needs a building permit, but Flagstaff City Code Section 4-02-001-0001…

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Gilbert

Some Restrictions

Gilbert adopts the 2018 International Building Code and 2018 International Residential Code by reference under Code of…

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Glendale

Some Restrictions

Glendale requires a permit under the adopted 2024 International Building Code for nearly every construction…

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Goodyear

Some Restrictions

Goodyear requires a building permit before anyone builds, alters, repairs, moves, or demolishes a structure, or…

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Lake Havasu City

Some Restrictions

Lake Havasu City requires building permits under the 2024 International Building Code, which it adopts by reference…

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Maricopa

Some Restrictions

In the City of Maricopa, interior renovations, remodels, and repairs require a building permit under the adopted 2024…

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Maricopa County

Some Restrictions

In unincorporated Maricopa County, low patios and terraces can extend into required yards without a Zoning Clearance…

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Mesa

Some Restrictions

Mesa requires anyone who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a…

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Peoria

Some Restrictions

Peoria requires a building permit for nearly all construction under its locally amended 2018 International Building…

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Phoenix

Some Restrictions

In Phoenix, decks and patios attached to buildings or elevated more than 30 inches above grade generally require…

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Pima County

Some Restrictions

Unincorporated Pima County requires building permits under the locally adopted 2024 International Building Code…

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Pinal County

Some Restrictions

Pinal County requires a building permit for construction of buildings and appurtenant structures in the unincorporated…

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Prescott Valley

Some Restrictions

In the Town of Prescott Valley, Arizona, no building, structure or building service equipment regulated by the…

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Queen Creek

Some Restrictions

The Town of Queen Creek requires a permit from the Building Official before anyone constructs, enlarges, alters…

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Sahuarita

Some Restrictions

Sahuarita adopts the 2018 International Building Code, as locally amended by Resolution No. 2019-0596, to govern when a…

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Scottsdale

Some Restrictions

Scottsdale amends IBC Section 105 to run its own annual-permit and exemption system. City Code § 31-5 lets the building…

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Sedona

Some Restrictions

Sedona adopts the 2018 International Building Code and requires a permit for virtually all construction, alteration or…

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Surprise

Some Restrictions

Surprise adopts the 2024 International Building Code and 2024 International Residential Code by ordinance as its local…

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Tempe

Some Restrictions

Tempe requires a building official-issued permit under City Code Sec. 8-105 before constructing, altering, moving or…

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Tucson

Some Restrictions

Tucson has adopted the International Building Code, 2024 Edition, with local amendments, and Tucson Code § 6-37…

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Yavapai County

Some Restrictions

Yavapai County requires a building permit for construction in the unincorporated county unless the work falls on the…

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Yuma

Some Restrictions

Yuma enforces the 2024 International Building Code through City Code § 150-015, with local fee and process amendments…

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Chandler

Light Restrictions

Chandler exempts a straight re-roof from a building permit on Group R-3 or U occupancies (houses and accessory…

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Electrical Permits

Which electrical work (panel upgrades, EV chargers, solar inverters, sub-panels) requires a licensed-electrician permit vs. an owner-builder permit.

Avondale

Some Restrictions

Avondale requires an electrical permit from the chief building official before any electrical installation, alteration…

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Buckeye

Some Restrictions

Buckeye, Arizona adopts the 2023 National Electrical Code by reference for all electrical work, with local amendments…

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Casa Grande

Some Restrictions

Casa Grande enforces electrical work under the National Electrical Code, 2017 Edition, adopted with local amendments by…

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Chandler

Some Restrictions

Chandler adopted the 2023 National Electrical Code and requires a permit for electrical work under the amended Building…

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Flagstaff

Some Restrictions

Electrical work in the City of Flagstaff is governed by the National Electrical Code, 2017 Edition, adopted and locally…

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Gilbert

Some Restrictions

Electrical work in Gilbert must comply with the "National Electrical Code, 2017 Edition," which Code of Gilbert Sec…

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Glendale

Some Restrictions

Glendale adopts the 2023 National Electrical Code (NFPA 70) by reference, and any electrical work must be permitted and…

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Goodyear

Some Restrictions

Goodyear requires all electrical construction and installation to comply with the 2023 NFPA 70 National Electrical…

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Lake Havasu City

Some Restrictions

Lake Havasu City requires electrical work to follow the 2023 National Electrical Code, adopted by reference with city…

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Maricopa

Some Restrictions

Maricopa adopts the 2023 National Electrical Code for all electrical work, with a local amendment to kitchen-island…

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Maricopa County

Some Restrictions

Unincorporated Maricopa County wires new construction to the National Electrical Code as locally amended by the Local…

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Mesa

Some Restrictions

Mesa enforces the National Electrical Code, adopted locally as the Mesa Electrical Code (§ 4-1-2(F)(3)), and requires a…

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Peoria

Some Restrictions

Peoria enforces electrical work under the 2017 National Electrical Code, adopted and locally amended by City Code…

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Phoenix

Some Restrictions

Phoenix adopts its Construction Code by reference, and that code, covering the City's Electrical Code, is what requires…

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Pima County

Some Restrictions

Unincorporated Pima County wiring and electrical installations must meet the 2023 National Electrical Code, adopted as…

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Pinal County

Some Restrictions

Electrical work in unincorporated Pinal County must comply with the National Electric Code, 2017 Edition, adopted by…

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Prescott Valley

Some Restrictions

In the Town of Prescott Valley, Arizona, all electrical work must follow the 2017 National Electrical Code as amended…

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Queen Creek

Some Restrictions

Queen Creek has adopted the 2020 National Electrical Code under Town Code Section 7-1-1-4-4, and Section 7-1-4-1…

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Sahuarita

Some Restrictions

Sahuarita governs electrical wiring, service equipment and installations through the 2017 National Electrical Code…

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Scottsdale

Some Restrictions

Scottsdale enforces the 2020 edition of the National Electrical Code as part of its Building Code, adopted by reference…

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Sedona

Some Restrictions

Sedona adopts the 2017 National Electrical Code for all electrical permits, but with one hard local rule: every…

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Surprise

Some Restrictions

Surprise adopts the 2023 National Electrical Code by ordinance as its governing electrical code, modified by local…

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Tempe

Some Restrictions

Tempe adopted the 2023 National Electrical Code by Tempe City Code § 8-800, and its Article 90 amendments make it…

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Tucson

Some Restrictions

Tucson Code § 6-84 adopts the National Electrical Code, 2023 Edition, with local amendments, and § 6-83 puts the…

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Yavapai County

Some Restrictions

Unincorporated Yavapai County enforces the 2023 National Electrical Code under Ordinance No. 2025-8 and requires an…

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Yuma

Some Restrictions

Yuma enforces the 2020 NFPA 70 National Electrical Code under City Code § 150-076, adopted by Resolution R2022-021…

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Plumbing Permits

Which plumbing work (water heaters, sewer-line replacement, repipe, gas-line) requires a permit, and which minor repairs are typically exempt.

Avondale

Some Restrictions

Avondale adopts the 2024 International Plumbing Code, with its own amendments and Appendices B, C and E, as the city's…

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Buckeye

Some Restrictions

Buckeye plumbing work runs on the locally adopted 2024 International Plumbing Code under City Code § 15-2-4, with local…

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Casa Grande

Some Restrictions

The City of Casa Grande enforces plumbing work under the International Plumbing Code, 2018 Edition, with local…

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Chandler

Some Restrictions

Chandler enforces the 2024 International Plumbing Code and requires a permit for plumbing work, but Section 29-2.11…

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Flagstaff

Some Restrictions

Plumbing work in the City of Flagstaff falls under the 2018 International Plumbing Code as adopted and locally amended…

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Gilbert

Some Restrictions

Plumbing work in Gilbert must follow the "International Plumbing Code, 2018 Edition," which Code of Gilbert Sec. 10-34…

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Glendale

Some Restrictions

Glendale adopts the 2024 International Plumbing Code by reference, administered by the Building Safety Division, and…

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Goodyear

Some Restrictions

Goodyear adopts the 2024 International Plumbing Code by reference to govern plumbing installation, alteration and…

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Lake Havasu City

Some Restrictions

Lake Havasu City requires plumbing work to comply with the 2024 International Plumbing Code, adopted by reference with…

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Maricopa

Some Restrictions

Maricopa enforces the 2024 International Plumbing Code as its local plumbing code, with the Building Official or a…

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Maricopa County

Some Restrictions

Unincorporated Maricopa County regulates plumbing under the locally titled "Plumbing Code of Maricopa County," its…

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Mesa

Some Restrictions

Mesa enforces the International Plumbing Code, adopted locally as the Mesa Plumbing Code (§ 4-1-2(F)(4)), and requires…

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Peoria

Some Restrictions

Peoria enforces plumbing work under the 2018 International Plumbing Code, adopted and locally amended by City Code…

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Phoenix

Some Restrictions

Phoenix requires a plumbing permit from the Planning and Development Director before any building sewer construction…

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Pima County

Some Restrictions

Unincorporated Pima County plumbing work must meet the 2024 International Plumbing Code, adopted by the county as its…

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Pinal County

Some Restrictions

Plumbing installations in unincorporated Pinal County must follow the International Plumbing Code, 2018 Edition…

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Prescott Valley

Some Restrictions

The Town of Prescott Valley, Arizona, adopts the 2018 International Plumbing Code with Appendices B, C, D and E under…

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Queen Creek

Some Restrictions

Queen Creek has adopted the 2021 International Plumbing Code under Town Code Section 7-1-1-4-5, and Section 7-1-4-1…

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Sahuarita

Some Restrictions

Sahuarita requires plumbing work to follow the 2018 International Plumbing Code, adopted by STC § 15.05.020(A)(4) with…

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Scottsdale

Some Restrictions

Scottsdale adopted the 2021 International Plumbing Code, renamed locally the 'Plumbing Code of the City of Scottsdale,'…

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Sedona

Some Restrictions

Sedona runs plumbing work under the 2018 International Plumbing Code, adopted with local amendments covering fees…

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Surprise

Some Restrictions

Plumbing work in Surprise must comply with the 2024 International Plumbing Code, adopted by reference under City Code §…

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Tempe

Some Restrictions

Tempe adopted the 2024 International Plumbing Code by reference under general code § 8-600, and § 8-105.1 of the Tempe…

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Tucson

Some Restrictions

Tucson adopts the 2024 International Plumbing Code with local amendments as its plumbing code under City Code § 6-124…

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Yavapai County

Some Restrictions

Yavapai County Ordinance No. 2025-3 amends Section 101.4.3 of the adopted building code to apply the 2024 International…

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Yuma

Some Restrictions

Plumbing work in Yuma is governed by the locally amended 2018 International Plumbing Code, adopted at City Code §…

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Building Inspections

Required inspection types (rough framing, electrical, plumbing, final), how to schedule, what inspectors look for, and how to handle a failed inspection.

Maricopa

Significant Restrictions

The Building Official keeps a comprehensive record of every inspection made under Maricopa's building codes, and…

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Chandler

Some Restrictions

When Chandler's building official finds a structure, premises, vehicle or outdoor area out of compliance with an…

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Flagstaff

Some Restrictions

In the City of Flagstaff, the Building Official inspects permitted work and can reject or require corrections for…

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Glendale

Some Restrictions

Glendale's Building Safety Division inspects work under the adopted 2024 International Building Code at rough-in and…

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Maricopa County

Some Restrictions

Before final sign-off, Maricopa County requires a floor/stemwall/foundation inspection ahead of the final building…

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Mesa

Some Restrictions

Mesa's Building Safety Director makes a set sequence of required inspections on every permitted job, footing and…

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Peoria

Some Restrictions

Peoria's building official inspects all permitted construction under the local IBC amendments at City Code Sec…

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Prescott Valley

Some Restrictions

In the Town of Prescott Valley, Arizona, the permit holder must notify the building official when work is ready for…

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Queen Creek

Some Restrictions

The Town of Queen Creek requires ten distinct inspection stages under Town Code Section 7-1-8-3, from footing and…

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Sahuarita

Some Restrictions

Sahuarita charges $100 for every reinspection triggered by a failed building inspection, and a separate $60 fee for…

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Scottsdale

Some Restrictions

Scottsdale's building official can order any inspection needed to verify code compliance beyond the standard required…

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Tempe

Some Restrictions

Tempe requires every permitted project to pass staged inspections by the Building Safety Division before work can…

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Tucson

Some Restrictions

Tucson Code § 6-33 puts one office in charge of every building inspection in the city: the building inspection…

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Yavapai County

Some Restrictions

Yavapai County requires a set sequence of 15 inspections under Ordinance No. 2019-1 Sec. 110, from footing through…

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Yuma

Some Restrictions

Yuma's Building Safety Division inspects under the amended 2024 IBC. Standard weekday inspections are covered by the…

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