Arizona, Mohave County Remodeler Permit Regulations and County Ordinances for Unincorporated Areas

Mohave County Building & Safety Division

The Mohave County Development Services Department, specifically its Building Division, is the Authority Having Jurisdiction (AHJ) for building and safety matters within the unincorporated areas of the county. They are responsible for safeguarding life, limb, health, property, and public welfare through plan reviews and inspections. Mohave County has adopted the 2018 International Building Codes (IBC) and the 2017 National Electrical Code (NEC), along with local amendments, for these areas. The Building Division's mission is to provide professional and effective services to builders, developers, and homeowners.

Rules for Properties in Unincorporated Areas

For properties located in the unincorporated areas of Mohave County, the county's adopted building codes, including the 2018 IBC and 2017 NEC, apply. This means that construction, alterations, and renovations must comply with these codes. Permits are generally required for all construction unless specifically exempted by the building codes or local ordinances. Even accessory structures and certain fences may require permits.

Permit Triggers for Demolition Work During a Remodel

Demolition work performed as part of a remodel in Mohave County generally requires a permit. For residential demolition, written permission from the property owner is necessary to obtain a demolition permit. Similarly, for commercial demolition, written permission from the property owner is also required.

Permit Requirements for Altering or Converting Non-Living Spaces

Converting non-living spaces such as garages, attics, or unfinished basements into habitable living areas typically requires a building permit in Mohave County. This is because such conversions involve significant alterations that change the use and occupancy of the space, necessitating compliance with building codes for safety and habitability.

Garages: Converting a garage into living space is considered a change in use and generally requires a building permit. This process ensures that the converted space meets standards for insulation, ventilation, electrical, and structural integrity. The garage door will need to be replaced with a proper wall, and new framing, insulation, and potentially floor leveling may be necessary.
Attics: While specific details on attic conversions are not extensively detailed in the provided search results, general renovation permit requirements would likely apply. This would include ensuring proper insulation, ventilation, and structural support to meet habitability standards.
Unfinished Basements: Similar to garage conversions, finishing an unfinished basement into a habitable area will require a building permit. This ensures that the space meets all applicable building codes for living areas, including egress, ventilation, and electrical requirements.

Resources to Learn More

Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Arizona, including Mohave County.

Arizona Remodeler Legislation, Codes, and Guidelines

Arizona State Building Codes and Legislation for Remodelers and Residential Renovations

Arizona's approach to building codes for remodelers and residential renovations is characterized by a "home rule" system, meaning that building codes are adopted and enforced at the local level by individual cities, towns, and counties. While there isn't a single, statewide building code mandated for all jurisdictions, most localities base their codes on the International Code Council's (I-Code) family of model codes, such as the International Building Code (IBC) and the International Residential Code (IRC). The specific version of these codes adopted can vary, with many jurisdictions transitioning from the 2018 I-Codes to the 2021 versions. It is crucial for remodelers and homeowners to verify the currently adopted codes with the local Authority Having Jurisdiction (AHJ) for any given project.

The International Existing Building Code (IEBC) is also adopted by some jurisdictions, such as Maricopa County, which adopted the 2018 IEBC. Phoenix has also amended the International Existing Building Code, with their adopted version being part of the Phoenix Building Construction Code.

Primary State Boards or Agencies Setting Standards

While local AHJs are the primary enforcers of building codes, certain state agencies have authority over specific areas:

Arizona Registrar of Contractors (ROC): The ROC licenses and regulates contractors in Arizona. They establish rules and standards for workmanship and professional conduct, which must be followed in conjunction with applicable building codes.
Office of the State Fire Marshal: This office establishes minimum statewide standards for electrical safety, recently adopting the 2023 National Electrical Code (NEC).
Arizona Department of Housing (ADOH): The ADOH regulates factory-built buildings and adopts minimum codes for manufactured housing.

Classification of Remodels and Demolition Guidelines

The distinction between cosmetic and structural alterations, and the applicability of demolition guidelines, is generally determined by the scope of work and local AHJ requirements.

Cosmetic Remodels: These typically involve aesthetic changes that do not affect the structural integrity or essential systems of a building. Examples include painting, wallpapering, tiling, carpeting, and replacing countertops or hardware. Generally, purely cosmetic work does not require a permit.
Structural Alterations: These involve changes to the building's structure, such as removing or altering load-bearing walls, modifying the foundation, converting attics or basements to habitable spaces, or making significant changes to plumbing, electrical, or mechanical systems. These types of renovations almost always require a building permit. Converting attics or basements to habitable living spaces, for instance, is considered a structural alteration and requires permits.
Demolition Guidelines: A demolition permit is required before the demolition of any part of a building, whether interior or exterior. Demolition plans may be required, and an asbestos review is often part of the process. Specific requirements for demolition permits, including potential plan reviews and notification periods, can vary by jurisdiction and the nature of the demolition (e.g., historic properties, commercial vs. residential). Demolition work that involves wrecking any load-supporting structural member of a facility requires a permit.

It's important to note that even for projects that might seem minor, local ordinances can dictate permit requirements. For example, some municipalities may require permits for finishing a basement or for certain window and door replacements if the size or configuration is changed.

Resources to Learn More

Select a City in Mohave County

If your project is located within incorporated city limits, you will likely need to follow municipal ordinances rather than county rules. Select your city below to view local regulations.

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