Pinal County Zoning Codes: Districts, Setbacks, and Permits

Pinal County zoning codes are set out in Title 2 of the county’s Development Services Code, and every parcel in the unincorporated county falls into a residential, commercial, or industrial district that controls what you can build, how large it can be, and how close to the property line it can sit.¹ The county is updating the code chapter by chapter rather than all at once, so the version online is the one that governs your project.²

How to Find the Zone on Your Property

Start with the county’s online Zoning Viewer or the Assessor’s Parcel Search. Both let you look up a property by address, parcel number, owner name, or subdivision, and the Zoning Viewer overlays the Title 2 district boundaries on an interactive map.³ The colored area over your parcel corresponds to one of the zone codes described below.

If you need the zoning in writing — for a lender, a buyer, or a permit application elsewhere — the Planning Division issues official zoning verification through its application portal.⁴ A standard zoning clearance costs $38.⁵

Residential Districts

Residential zones in Pinal County run from the most rural to the most urban, with density increasing as you move down the list.

At the rural end sit General Rural (GR) along with GR-5 and GR-10, which allow low-density single-family and agricultural uses on large parcels. Suburban Ranch (SR and SR-1) sits one step closer to town. Suburban Homestead (SH) requires a minimum lot size of two acres, or 87,120 square feet.⁶

Conventional subdivision lots fall under the single-residence zones CR-1A, CR-1, CR-2, and CR-3, where allowable lot sizes shrink as the number climbs. Only CR-4 and CR-5 permit multi-family housing such as duplexes and apartments. Separate districts cover manufactured homes (MH), manufactured home parks (MHP), recreational vehicle homesites (RV), recreational vehicle parks (RVP), and park models (PM).¹ If your lot is zoned for single-family, duplexes and apartments are not an option without a rezoning.

Commercial and Industrial Districts

Commercial zones are tiered by intensity. The older designations are CB-1 (Local Business) for neighborhood retail and offices and CB-2 (General Business) for higher-intensity uses. Newer designations include C-1 (Neighborhood Commercial), C-2 (Community Commercial), and C-3 (General Commercial), along with O-1 and O-2 office zones and three Activity Center districts (AC-1, AC-2, AC-3) for mixed-use projects. Rural Commercial (RU-C) covers commercial activity in less developed areas.¹

Industrial zones stack the same way. CI-B (Industrial Buffer) allows warehousing and light manufacturing but only inside fully enclosed buildings, acting as a transition between commercial and heavier industrial uses. CI-1 (Light Industry and Warehouse) drops the enclosed-building rule for storage but still bars operations that produce noise, vibration, dust, smoke, or odor. CI-2 (Industrial) allows heavy manufacturing, processing, assembly, and outdoor equipment yards, though even CI-2 users cannot create nuisance conditions.¹

Setbacks, Height, and Lot Coverage

Every district has its own development standards, and the numbers change significantly from one zone to the next. The Suburban Homestead zone, for example, requires a 30-foot front yard setback, 10-foot side yard setbacks, and a 40-foot rear yard setback. Detached accessory buildings must sit at least 60 feet from the front lot line and at least four feet from side and rear lines, except for structures housing poultry or animals, where the setback jumps to 50 feet.⁶

Height caps also vary. CB-1 commercial buildings top out at 30 feet, and the county sets lot coverage and open space percentages for each district. Before any construction, pull the chapter for your specific zone on the Municode site and work from those numbers rather than assuming the standards from a neighboring district apply.

Accessory Dwelling Units

Pinal County recently updated its rules on accessory dwelling units, which many homeowners know as guest houses or casitas. Size limits turn on lot size.

On lots under one acre, an ADU can be no larger than 75 percent of the main home’s livable floor area or 1,000 square feet, whichever is less. You’re allowed one attached and one detached ADU. On lots of one acre or more, the ceiling rises to 75 percent of the main home or 1,500 square feet, whichever is less, and you can add one more detached ADU beyond what smaller lots are allowed.

Every ADU must be at least 200 square feet. Manufactured homes, mobile homes, recreational vehicles, and park model trailers cannot serve as ADUs unless state law says otherwise. The ADU and the main house share utility meters and a single physical address, with the ADU carrying its own unit number.⁷

Fences and Walls

A fence that meets the height and material limits usually does not need a building permit. Side and rear yard fences can reach six feet. Front yard fences are capped at five feet, and anything above three feet in front must be open rather than solid construction, though pipe rail or wrought iron can go to six feet. Gates are allowed up to eight feet. On corner lots, fences inside the sight visibility triangle at the intersection cannot exceed 24 inches.⁸

Running a Business From Home

Operating a business out of your residence requires a home occupation permit. The permit is personal to you, does not transfer with the property, and is available only to full-time residents of the home.⁹

The rules are built to keep the business invisible from the street. The business must fit inside the home or an accessory building no larger than 400 square feet, and no more than a quarter of the home’s floor area on a single story can be devoted to it. Up to two non-residents can work on-site. You can see a maximum of five clients a day with no more than two at once, and overnight stays are not allowed. One sign is permitted, no larger than 24 by 24 inches, showing only the owner’s name, business name, profession, and address. No outdoor storage, no public display of inventory, and parking must be on-site without commercial striping or wheel stops.

Certain uses are prohibited outright as home occupations: auto repair, barbershops, beauty salons, commercial food preparation, tattoo parlors, veterinary services, kennels, pet grooming, welding, and delivery services tied to a commercial operation.⁹ If your plan falls on that list, a home occupation permit is not the path forward regardless of your zone.

When Your Zoning Doesn’t Allow What You Want

Three different tools cover three different problems. Which one you need depends on whether you want to change the zone itself, bend a specific dimensional rule, or get approval for a use the zone already contemplates on a case-by-case basis.

Rezoning

A zoning map amendment changes the district assigned to your parcel. The process takes an average of five to six months. Before applying, you have to confirm the project matches the county’s Comprehensive Plan. If it doesn’t, you need a Comprehensive Plan Amendment first, and the two cannot run at the same time.¹⁰

From there, a mandatory pre-application meeting with Planning, Public Works, Building Safety, Air Quality, and Environmental Health comes first; the county will not accept an application without it, and the fee is $490. After you submit the application, the Planning and Zoning Commission holds a hearing and makes an advisory recommendation. The Board of Supervisors is the only body with legal authority to approve or deny the request. The application fee is $4,478 if fewer than 500 notification mailings are needed and $4,880 if 500 or more.⁵

Variance

A variance lets you deviate from a single dimensional standard such as a setback, height limit, or lot coverage rule without changing the underlying zone. Variances are not a right, and the county can refuse one without that refusal counting as a denial of your property rights.¹¹

To win one at a Board of Adjustment hearing, you must prove all of the following: special circumstances apply to your property that other properties in the zone do not share; strict enforcement would create an unnecessary non-financial hardship and the variance is needed to preserve existing property rights; granting the variance will not harm neighbors’ health or safety or damage nearby property values; the special circumstances are not self-imposed and are not simply a matter of preference; and the variance will not allow a use that the zone prohibits.

The non-financial hardship requirement is the sticking point for most applicants. Wanting to build something larger or more profitable does not qualify. The hardship has to come from the physical characteristics of the land. Applications require a site plan, proof of ownership, a floor plan when interior access is involved, and a certified list of every property owner within 600 feet. The Board of Adjustment must hold a public hearing within 60 days of filing. Residential variance applications cost $500.⁵

Special Use Permit

A special use permit authorizes a specific activity that the code identifies as potentially appropriate in your district but wants to review individually. The Board of Supervisors has final say, and nothing in the code entitles any applicant to automatic approval.¹²

Applications require a site plan, building floor plans and elevations, and a written statement explaining why the proposed use fits the particular property without harming the surrounding area. A pre-application meeting is mandatory. If staff flags deficiencies and you don’t address them within 90 days, the file closes and you start over with a new application and fee. An approved SUP does not take effect for at least 30 days and remains valid as long as the use continues in compliance with its conditions and is not abandoned for 12 consecutive months. The filing fee is $500 for fewer than 500 notification mailings or $750 for 500 or more. A SUP filed together with a zone change costs $500.⁵

Reporting or Responding to a Violation

Suspected zoning violations go to the Code Compliance Division through the county’s Citizen Access Portal. You can also call 520-509-3555 or visit 85 N. Florence Street in Florence.¹³

Enforcement escalates in stages. Staff investigates, sends a courtesy letter, then a formal Opportunity to Correct notice, then a Notice of Violation. Cooperative owners can enter a compliance plan that the county monitors. Owners who don’t comply receive a Demand Letter and face referral to the Pinal County Civil Hearing Office, and ultimately a case in Superior Court, which can issue a judgment enforcing compliance. Case status is searchable in the Citizen Access Portal under the Enforcement tab, with cases marked “Closed” once the property is brought into compliance or the county determines there is not enough evidence to proceed.¹³

1
Municode Library. Pinal County Development Services Code Title 2 – Zoning
2
Pinal County, AZ. Ordinance Update – Title 2: Zoning
3
Pinal County. Assessor Parcel Search
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Pinal County, AZ. Applications
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Pinal County, AZ. Fee Schedule
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Municode Library. Pinal County Development Services Code – Chapter 2.30 SH Suburban Homestead Zone
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Pinal County. Pinal County Development Services Code – ADU Regulations
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Pinal County. Frequently Asked Questions – Fencing
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Pinal County, Arizona. Home Occupation Guidelines
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Pinal County, AZ. Land Use Change Process
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Municode Library. Pinal County Development Services Code – Chapter 2.155 Board of Adjustment; Variances; Appeals
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Municode Library. Pinal County Development Services Code – Chapter 2.151 Special Use, Special Density, and Special Event Permits
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Pinal County, AZ. Code Compliance