Bolthole Index

Pinal County, Arizona

Building permits, zoning and land rules in Pinal County, Arizona

27Index Score / 100
#14 of 15 in Arizona

Unincorporated Pinal County, Arizona requires a building permit unless the work is specifically exempt, issued by the county Building Safety Department.1 Zoning for unincorporated land comes from the county Planning Division, while cities and towns apply their own rules.23 Septic permits come from the county Aquifer Protection Division, and an RV cannot be placed on a vacant parcel.45

At a glance

Building permit
Required in unincorporated Pinal County unless the work is specifically exempt1
Building codes
County-adopted codes apply in unincorporated areas and participating cities6
Zoning
Published county zoning districts apply in unincorporated areas; city and town rules vary37
Septic permit
Aquifer Protection permits and inspects conventional and alternative systems; off-grid sanitation still needs approval8910
RV living
No RV on a vacant parcel; temporary use may be allowed while an owner-builder constructs under a valid permit5
Manufactured home
Allowed with county permits, compatible zoning and qualifying federal standards1112
Owner-builder
Contractor-license exemption available, but permits and codes still apply13
Agricultural use
Some qualifying agricultural land uses and small farm structures have limited exemptions1415

Who to call

Building permits

Pinal County Building Safety Department

Building permit review, inspection and code enforcement for unincorporated Pinal County

520-509-3555

85 N Florence Street, First Floor, Florence, AZ 85132

Online permits →

Zoning

Pinal County Community Development Department, Planning Division

Zoning verification, rezoning, special-use permits and comprehensive-plan questions for unincorporated Pinal County

520-509-3555

31 N Pinal Street, Florence, AZ 85132

Septic permits

Pinal County Aquifer Protection Division

Septic (on-site wastewater) permits and inspections, and well-permit review on parcels 5 acres and smaller, for Pinal County

520-509-3555

85 N Florence Street, First Floor, Florence, AZ 85132

Floodplain permits

Pinal County Flood Control District

Floodplain Use Permits and base flood elevation determinations for development in Pinal County

520-866-6411

31 N Pinal Street, Florence, AZ 85132

Roads & driveways

Pinal County Public Works

Transportation infrastructure and engineering, including Right-of-Way Use Permits, for county roads in Pinal County

520-509-3555

31 N Pinal Street, Florence, AZ 85132

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Off-grid gear

Going off-grid in Pinal County means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Pinal County, Arizona?

Yes: construction in unincorporated Pinal County needs a building permit unless the work is specifically exempt1. Pinal County enforces the 2018 International Building and Residential Codes and related 2018 codes, along with the 2017 National Electrical Code, in unincorporated areas and in cities that contract with the county for code services6. Listed exemptions include a detached accessory building up to 200 square feet with walls up to 10 feet high, a fence up to 7 feet, certain retaining walls up to 4 feet, and a qualifying water tank up to 5,000 gallons1. A free-standing livestock, hay, ramada, gazebo or similar shade structure is exempt when it is no larger than 200 square feet and does not encroach into required setbacks15. Exempt work may still need electrical, plumbing or mechanical permits and must comply with zoning and building-code limits1. Inside Maricopa and Apache Junction, the city issues building permits1617. Septic permits remain with Pinal County Aquifer Protection, with wastewater-agency approval required inside incorporated areas4.

Who is the Pinal County building department, and how do you apply?

The Pinal County Building Safety Department provides plan review, inspections and code enforcement for unincorporated Pinal County and for cities that have an intergovernmental agreement with the county186. Call 520-509-3555 or visit 85 N Florence Street, First Floor, Florence, AZ 8513218. Submit the architectural site plan, owner authorization, construction documents and supporting materials as PDFs through the Citizen Access Portal; enter the parcel number without dashes19. When plan review is required, its fee is 65% of the building-permit fee and is due at submittal20. After approval and payment, the county emails the permit and approved drawings, and inspections require a valid permit number19. For a commercial project, the final inspection is not the Certificate of Occupancy; the Certificate of Occupancy must be requested separately21.

Does Pinal County have zoning?

Pinal County zoning governs unincorporated land; verify the parcel's district through Citizen Access3. Maricopa, Apache Junction and Florence have their own zoning222324. So do Eloy, Coolidge and Kearny252627. Queen Creek, mainly in Maricopa County, and Marana, mainly in Pima County, reach into Pinal County and set their own zoning2829. Septic permits stay with Pinal County Aquifer Protection, subject to wastewater-agency approval inside incorporated areas4. On unincorporated land, CR-1A requires at least one acre, CR-1 requires 20,000 square feet, and GR requires 54,450 square feet (1¼ acres)303132. CR-1A yards are 30 feet in front, 10 feet on each side and 40 feet in back; CR-1 requires 25 feet in front and back and 10 feet on each side; GR requires 40 feet in front and back and 20 feet on each side, subject to frontage and corner-lot exceptions333435. Arizona's zoning protection for general agriculture on at least 5 contiguous commercial acres does not waive building, septic, floodplain or health requirements14.

Who issues septic permits in Pinal County, and how do they work?

Pinal County Aquifer Protection permits and inspects conventional and alternative septic systems throughout the county8. Off-grid sanitation where sewer is unavailable can use an approved onsite system, but site, design and subdivision requirements still apply; this is not blanket permission for every parcel10. New construction, repairs and alterations need a county septic permit; unincorporated parcels need zoning clearance first, while incorporated areas and wastewater districts need written approval from the responsible wastewater agency4. For the applicable general-permit process, submit a Notice of Intent to Construct and complete construction within 2 years after approval36. Construction, inspection and testing precede Discharge Authorization; do not cover or operate the system before final inspection and county approval to discharge94. Only 19.7% of Pinal County soils rate without severe limits for conventional drain fields, so arrange a site evaluation before fixing the house location37. On resale, the seller must arrange a qualified inspection within 6 months before transfer, and the buyer must file the transfer notice within 15 calendar days afterward38. Before a licensed contractor drills a new groundwater well, file a Notice of Intent to Drill with Arizona's Department of Water Resources; Aquifer Protection reviews applications on parcels of 5 acres or smaller for state referral3940.

Can you live in an RV or tiny home on your land in Pinal County?

You cannot place a park model or RV on a vacant parcel in unincorporated Pinal County5. An owner-builder with a current valid building permit may seek a Temporary Use Permit to live in an RV on the property during construction; the permit costs $427 for 6 months5. The RV Homesite Zone is different: lots in an RV subdivision require at least 6,000 square feet and 60 feet of width, with yards of 15 feet in front and 10 feet on each side and in back4142. Manufactured homes require Community Development permits, suitable zoning and compliance with applicable development standards11. Pinal County has no confirmed standalone occupancy rule for a structure merely called a tiny home, so ask Planning whether the proposed unit will be treated as a dwelling, manufactured home, park model or RV43. The current ADU provision requires at least 200 square feet and compliance with zoning, building, fire and public-health rules; RVs, mobile homes, manufactured homes and park models are excluded except under the cited statutory exception44.

How do you build a home in Pinal County, step by step?

  1. Confirm whether the parcel is in unincorporated Pinal County or a municipality, then ask the correct planning office for its zoning district and development standards3.
  2. Confirm legal access; a new driveway onto a county road requires a Right-of-Way Use Permit before installation45.
  3. Check the flood map before fixing the building site because development in a floodplain requires a separate Floodplain Use Permit46.
  4. Arrange the site evaluation and septic design early because only 19.7% of county soils rate without severe limits for a conventional drain field37.
  5. Choose a licensed contractor or qualify as an owner-builder; the owner-builder exception removes the contractor-license requirement, not permits or code compliance13.
  6. Submit the site plan, owner authorization and construction documents as PDFs through Citizen Access, with the parcel number entered without dashes19.
  7. After issuance, call 520-866-6299 for required building inspections; Aquifer Protection separately inspects septic lines, the tank and disposal field1947.

What to check before you buy land in Pinal County

Confirm jurisdiction first: Pinal County rules govern unincorporated land, while a city or town may have different zoning and permitting rules3. Verify that the intended home type is allowed; an RV cannot go on a vacant parcel, and a manufactured home needs county permits, compatible zoning and a qualifying completion date51112. Check legal access, the driveway permit path and floodplain status before choosing a house site4546. Water deserves equal attention: Pinal County averages 11.3 inches of precipitation and experiences severe drought in 33.9% of years4849. Confirm the parcel's water source and whether a utility, subdivision or development agreement requires a connection; no single countywide connection rule could be confirmed, so ask Aquifer Protection and the serving utility40. Budget for septic testing because only 19.7% of soils rate without severe limits for a conventional drain field37. Finally, determine whether any claimed agricultural exemption actually applies; the zoning protection for general agriculture requires at least 5 contiguous commercial acres and does not waive separate health or development rules14.

Watch-outs

  • Pinal County's ordinary short-term or vacation-rental rule could not be confirmed; ask the Planning Division before planning rental use on unincorporated land43.
  • An RV or park model cannot be placed on a vacant parcel; the temporary owner-builder option requires a current valid building permit5.
  • On Pinal County-owned or operated park property, camping is prohibited outside designated camping areas and overnight stays require a reservation; that park rule does not authorize camping on private land50.
  • We could not confirm a countywide public-water or sewer connection requirement in Pinal County; ask Aquifer Protection and the serving utility about the parcel40.
  • Several Pinal County cities and towns (Coolidge, Eloy, Kearny, Mammoth, Maricopa, Superior and Winkelman) require the county's Floodplain Use Permit before they will approve their own building plans; if your land is near one of these, confirm which floodplain permit applies before you build4651.

Sources

  1. Building Safety, quoted and re-checked
  2. Frequently Asked Questions | Pinal County, AZ, quoted and re-checked
  3. Frequently Asked Questions | Pinal County, AZ, quoted and re-checked
  4. Pinal County Environmental Health Code Final 1.1.22, quoted and re-checked
  5. pinal.gov, quoted and re-checked
  6. Building Safety | Pinal County, AZ, quoted and re-checked
  7. Pinal County Development Services Code, Title 2 – Zoning, quoted and re-checked
  8. Wells & Septic, quoted and re-checked
  9. Wells & Septic, quoted and re-checked
  10. Wells & Septic, quoted and re-checked
  11. pinal.gov, quoted and re-checked
  12. pinal.gov, quoted and re-checked
  13. A.R.S. § 32-1121: Persons not required to be licensed, quoted and re-checked
  14. A.R.S. § 11-812 - Restriction on regulation; exceptions; aggregate mining regulation; definitions, quoted and re-checked
  15. 003 - What Projects and Structures Are Exempt From Permit Requirements?, quoted and re-checked
  16. Maricopa: Building Safety (Pinal County), quoted and re-checked
  17. Apache Junction: § 7-1-6 Permits (Pinal County), quoted and re-checked
  18. Pinal County Building Safety Department (pinal.gov)
  19. Regulations Governing On-Line Submittals, quoted and re-checked
  20. Building Permit Fee Schedule, quoted and re-checked
  21. Commercial Submittal Requirements, quoted and re-checked
  22. Maricopa: 18.10.010 Districts established (Pinal County), quoted and re-checked
  23. Apache Junction: Apache Junction, AZ Laws (Pinal County), quoted and re-checked
  24. Town of Florence: § 150.045 Districts (Pinal County), quoted and re-checked
  25. Eloy: Zoning Ordinance (Pinal County), quoted and re-checked
  26. Coolidge: § 153.01 Zoning Code (Pinal County), quoted and re-checked
  27. Town of Kearny: Administration | Town of Kearny, Arizona (Pinal County), quoted and re-checked
  28. Town of Queen Creek: Planning and Zoning | Queen Creek, AZ (Pinal County), quoted and re-checked
  29. Town of Marana: Chapter 17-4. Zoning (Pinal County), quoted and re-checked
  30. Development Services Code, § 2.55.020, CR-1A Single Residence Zone, quoted and re-checked
  31. Development Services Code, § 2.60.020, CR-1 Single Residence Zone, quoted and re-checked
  32. Development Services Code, § 2.40.020, GR General Rural Zone, quoted and re-checked
  33. Development Services Code, § 2.55.020, CR-1A Single Residence Zone, quoted and re-checked
  34. Development Services Code, § 2.60.020, CR-1 Single Residence Zone, quoted and re-checked
  35. Development Services Code, § 2.40.020, GR General Rural Zone, quoted and re-checked
  36. Wells & Septic, quoted and re-checked
  37. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  38. Onsite Wastewater Treatment System Type 4.02 – 4.23 General Permit, quoted and re-checked
  39. Well Drilling in Arizona, quoted and re-checked
  40. Pinal County Aquifer Protection Division (pinal.gov)
  41. Development Services Code, § 2.125.020, RV Recreational Vehicle Homesite Zone, quoted and re-checked
  42. Development Services Code, § 2.125.020, RV Recreational Vehicle Homesite Zone, quoted and re-checked
  43. Pinal County Community Development Department, Planning Division (pinal.gov)
  44. Development Services Code, § 2.150.240, Accessory Dwelling Units, quoted and re-checked
  45. Pinal County Subdivision and Infrastructure Design Manual 2024, quoted and re-checked
  46. Floodplain Permitting, quoted and re-checked
  47. Building Safety, quoted and re-checked
  48. Annual precipitation: Bolthole Index county data
  49. Share of years in severe drought: Bolthole Index county data
  50. Park Rules, quoted and re-checked
  51. Pinal County Flood Control District (pinal.gov)

Written October 12, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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Compared with neighboring counties

Like all 6 of its neighbors, Pinal County has countywide zoning.

RulePinal CountyPima CountyGila CountyGraham CountyMaricopa CountySanta Cruz CountyCochise County
Building permitRequiredRequiredRequiredRequiredRequiredLimitedRequired
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Air Quality & Env. HealthPima CountyCounty Community Development Div.County Dept. of Health & Human ServicesCounty Env. Services Dept.County Env. Health Div.County Health Dept.

County locator

Pinal County in Arizona

27
County map
Pinal County highlighted among the Arizona counties · colored by Index score

How Pinal County scores

Seclusion19100% ev.
Self-Sufficiency1399% ev.
Admin Boringness48100% ev.
Durability46100% ev.
Property Autonomy65100% ev.
Carry Cost82100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$364kTypical home
0.5%Property tax
$2,148Land / acre
11.3"Annual rain
33.9% of yrsSevere drought
102.6 / yr (+33.6)Mid-century 100°F days
59.3 daysMid-century dry spell
1.12" (+6.6%)Mid-century 1-day rain
1.12×Wildfire change factor
100%Forward climate coverage
$1,030Home insurance / yr
2.9% / yrInsurance growth
2.06%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
3,066,207People within 2 hr
92,197Radius comparison (15 mi)
90.2People / sq mi
13.7%Federal land
73.2%Land at 15% slope or less
19.7%Soils rated "not limited" for septic (strict USDA rating)
560,704 acWorkable land screen
4.4%Wooded land
6.8 tonsBiomass / forest ac
69.5°FAvg temp

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Cities and towns in Pinal County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Not yet researched: Casa Grande · Town of Mammoth · Town of Superior · Town of Winkelman

Answers from the rulebook for Pinal County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Pinal County rules

  • Building permitRequired

    Proposed construction work subject to Pinal County Building Safety jurisdiction in unincorporated Pinal County.

    • A permit is not required when the proposed work is listed as exempt in the bulletin or referenced codes.
    • Even when construction does not require a building permit, an electrical, plumbing, or mechanical permit may still be necessary.
    • Permit exemption does not authorize work violating the building code.
    • Construction may still be subject to Planning and Development or other public-agency requirements.
    • Examples of listed exemptions include detached accessory buildings up to 200 square feet with maximum 10-foot wall height; fences up to 7 feet; certain retaining walls up to 4 feet; water tanks up to 5,000 gallons meeting the stated height-to-width ratio; platforms and walks up to 30 inches above grade; qualifying patio covers up to 120 square feet extending no more than 8 feet; and qualifying decks under 200 square feet and no more than 30 inches above grade.

    detached accessory building roof area exemption: <= 200 square feet (One-story detached accessory buildings used as tool or storage sheds, playhouses, and similar uses; location must be approved.) · detached accessory building wall height exemption: <= 10 feet (Measured from grade to top plate.) · fence exemption height: <= 7 feet (Measured from finished grade.) · water tank exemption capacity: <= 5000 gallons (Must be supported directly on grade and height-to-diameter or width ratio must be no more than 2 to 1.)

    “if the proposed construction work is not listed as exempt in this Bulletin or the codes referenced above, it does require a permit.”
  • Building code adoptedAdopted (with conditions)

    Building-code enforcement and inspection services in Pinal County's unincorporated areas, and in cities that have entered into intergovernmental agreements with the county for building-code services.

    • The listed adopted codes are the 2018 International Building, Residential, Mechanical, Plumbing, Fuel Gas, Fire, Property Maintenance, and Energy Codes, plus the 2017 National Electrical Code.
    • The county department also serves cities that have entered into intergovernmental agreements with the county; incorporated jurisdictions without such agreements may administer their own codes.

    International Building Code edition: 2018 · International Residential Code edition: 2018 · International Mechanical Code edition: 2018 · International Plumbing Code edition: 2018 · National Electrical Code edition: 2017 · International Fuel Gas Code edition: 2018 · International Fire Code edition: 2018 · International Property Maintenance Code edition: 2018 · Energy Code edition: 2018

    “The Building Safety Department provides inspection, plan review and investigative services to the unincorporated areas of the county and also to those cities that have entered into intergovernmental agreements (IGA) with the county to provide building code services. [...] Current Adopted Codes 2018 International Building Code 2018 International Residential Code 2018 International Mechanical Code 2018 International Plumbing Code 2017 National Electrical Code 2018 International Fuel Gas Code 2018 International Fire Code 2018 International Property Maintenance Code 2018 Energy Code”
  • InspectionsRequired

    Residential construction under Pinal County Building Safety jurisdiction in unincorporated Pinal County.

    • The bulletin is only a guideline and is not intended to be a complete list of requirements.
    • The permit holder or designated agent must call for one or more inspections when the work is ready to inspect.
    • A copy of the County-approved building plan, site plan, and inspection record card must be on the job site and accessible for each requested inspection.
    • The address must be posted and visible from the street.
    • The listed inspections include footing and setback, stem wall, rough plumbing, pre-floor, underground electric, HVAC, rough electric, framing, roof nail, insulation, electrical service, gas line service, sewer or septic line, water service, demolition, and final inspection.
    • Septic lines, tank, and disposal field are inspected by the Pinal County Aquifer Protection Division.
    • The final inspection assures compliance with Building Code requirements and approved plans.

    inspection scheduling cutoff: 12:00 am midnight same business day (As stated in the residential inspection brochure.)

    “The permit holder or designated agent must call for one or more of the following inspections when the work is ready to inspect.”
  • Certificate of occupancyLimited

    Commercial projects subject to Pinal County Building Safety requirements in the unincorporated areas of Pinal County.

    • The Certificate of Occupancy must be requested.
    • The final inspection is not the Certificate of Occupancy.
    • When fire sprinklers and fire alarms are required by code, fire plans must be listed as a deferred submittal on the building plans.
    • Deferred fire plans must be submitted to the local fire district or the Arizona State Fire Marshal or Fire Marshal’s agent for review, approval and inspections.
    • A copy of the local fire district’s or Arizona State Fire Marshal’s report must be provided to the Chief Building Official before the final inspection.
    “Please note, your final inspection is not your Certificate of Occupancy. The Certificate of Occupancy must be requested.”
  • County-wide zoningPresent (with conditions)

    Zoning and land-use regulation in Pinal County's unincorporated areas, including geographic zoning classifications and development or land-use changes.

    • The county's FAQ describes zoning as restricting geographic areas to specified uses and development.
    • Rezoning, planned area developments, special-use permits, industrial-use permits, and comprehensive-plan amendments require county review; the Board of Supervisors has legal authority to approve or deny the request.
    • Incorporated municipalities may administer their own land-use rules.
    “Under the Zoning Ordinance provisions, certain types of businesses may be conducted from a residence as a Home Occupation in certain zoning districts. [...] Land use definitions that regulate development on properties throughout unincorporated Pinal County.”
  • Local zoningVaries (with conditions)

    County-level aggregate of zoning administered by Pinal County in unincorporated areas and by incorporated cities and towns within the county; the actual rule-maker depends on the property's jurisdiction.

    • Pinal County states that persons within a city or town should check that municipality for its laws.
    • County zoning classifications and land-use procedures apply to county-regulated areas; municipal rules may differ within incorporated jurisdictions.
    • Parcel-specific zoning must be verified through the county's Citizen Access Portal or the relevant municipality.
    “Yes, we have an Outdoor Lighting Ordinance that governs outdoor light in all of our zoning categories. If you are within a city/town, please check with them for laws. Also, you may want to check with the Homeowners Association for rules (if applicable).”
  • Zoning districtsPublished

    Zoning districts administered by Pinal County in the unincorporated area under the County's jurisdiction.

    • The listed classifications apply for use on and after February 18, 2012.
    • Any rezoning or PAD Overlay District application filed on or after February 18, 2012, must use one of the established classifications, except as described in PCDSC § 2.175.090(D).
    • The official zoning map is maintained as a GIS geographic coverage layer and applies to the unincorporated area of the County under the County's jurisdiction.
    • Incorporated municipalities may administer their own zoning rules.
    “For the purpose of this Title, the following classifications of Zoning Districts are hereby established for Use on and after February 18, 2012. Any Rezoning application or PAD Overlay District application filed on or after February 18, 2012, must be to one of the following established Zoning District classifications, except as described in PCDSC § 2.175.090(D):”
  • Minimum dwelling sizeSpecified

    Accessory dwelling units in unincorporated Pinal County.

    • The minimum applies to ADUs, not necessarily to every dwelling type.
    • ADUs remain subject to applicable zoning-area standards and building, fire, drainage, flood-control, public-health, and safety regulations.
    • A manufactured home, mobile home, recreational vehicle, or park model trailer may not be used as an ADU, except as otherwise allowed under A.R.S. § 11-820.03.

    minimum ADU area: >= 200 square feet

    “For lots or parcels one acre or more in size, ADUs shall be no larger than 75 percent of the gross livable floor area of the main single-family dwelling on the same lot or parcel or 1,500 square feet, whichever is less. D. Shall use the same street access that serves the single-family dwelling. E. The ADU and the single-family dwelling shall not be served by separate utility meters. F. Shall be a minimum of 200 square feet.”
  • Minimum lot sizeSpecified

    Lots in the CR-1 Single Residence Zone in unincorporated Pinal County.

    • The zone also requires 20,000 square feet per dwelling unit.

    minimum lot area: >= 20000 square feet · minimum lot width: >= 80 feet

    “B. Minimum lot area: 20,000 square feet. C. Minimum lot width: 80 feet. D. Minimum lot area per dwelling unit: 20,000 square feet.”
    3 more reviewed findings on this topic
  • SetbacksSpecified

    Lots in the CR-1 Single Residence Zone in unincorporated Pinal County.

    • In a rural or residential zone adjoining lots with smaller existing front yards, the front yard may be the average or the applicable combination stated in § 2.150.090, but may not be less than ten feet.
    • Corner-lot traffic-visibility restrictions in § 2.150.080 also apply.

    minimum front yard: 25 feet (subject to § 2.150.090 front-yard exceptions) · minimum side yards: 10 each feet · minimum rear yard: 25 feet

    “Minimum front yard: 25 feet. Minimum side yards: Ten feet each. Minimum rear yard: 25 feet.”
    3 more reviewed findings on this topic
  • Living in an RVLimited

    Placement and occupancy of park models and recreational vehicles on property in unincorporated Pinal County.

    • Park models and RVs are allowed in park model parks or RV parks.
    • A park model or RV may not be placed on a vacant parcel.
    • An owner-builder may qualify for a Temporary Use Permit to live in an RV temporarily on the owner's property only if the owner-builder has a current valid building permit.
    • The Temporary Use Permit fee is $427 for six months.

    Temporary Use Permit fee: 427 USD · Temporary Use Permit period: 6 months

    “You cannot put a park model or RV on a vacant parcel.”
  • Camping on your landProhibited

    Camping on Pinal County-owned or operated park property outside areas designated for camping.

    • The rule applies to County Parks, defined on the page as parks, trailheads, trails, preserved open space, or other identified recreation areas owned or operated by Pinal County.
    • Overnight camping in designated camping areas requires a reservation.
    • A 14-day camping limit is enforced, followed by a required seven-day absence before returning.
    • Checkout is noon and quiet hours are 10:00 p.m. to 8:00 a.m.

    camping limit: 14 days (Campers must leave the campground for at least 7 days before returning.)

    “It will be unlawful to camp in areas not designated for camping.”
  • Manufactured homesAllowed (with conditions)

    Placement and occupancy of manufactured homes in unincorporated Pinal County, including the county MH Manufactured Home Zone.

    • A Community Development Department permit is required when placing a manufactured home, including mobile homes, park models, and RVs.
    • In the MH zone, a manufactured home is a permitted use, subject to the zone's development standards.
    • The MH zone standards include a maximum structure height of 30 feet, minimum lot area and area per manufactured home of 8,000 square feet, minimum lot width of 60 feet, 15-foot front yard, 10-foot side and rear yards, and 20 feet between manufactured homes.
    • Pinal County states that only manufactured homes completed after June 15, 1976, to HUD standards are allowed within unincorporated areas.

    minimum lot area: >= 8000 square feet · minimum lot width: >= 60 feet · minimum area per manufactured home: >= 8000 square feet · minimum distance between manufactured homes: >= 20 feet · manufactured-home completion date: > 1976-06-15 (must meet U.S. Department of Housing and Urban Development standards)

    “When placing a manufactured home (including mobile homes, park models and recreation vehicles [RVs]) on a property, you must obtain permits from Community Development Department.”
    One more reviewed finding on this topic
    • Limited — Placement of manufactured homes in unincorporated Pinal County.
      “Only manufactured homes completed after June 15, 1976”
  • Accessory dwellingsAllowed (with conditions)

    Accessory Dwelling Units in unincorporated Pinal County where allowed by the applicable zoning district.

    • Detached ADUs must conform to the main building's development standards, except that a qualifying park model trailer permitted under § 2.150.155 is exempt from architectural elevation and material standards.
    • A detached ADU must be at least 250 square feet, meet the zoning district's front, rear, and side setbacks, not exceed the main building's height, and be at least 6 feet from the main building if fire-rated or 10 feet if not fire-rated.
    • It must be on a lot containing one single-family detached dwelling unit, have a separate exterior entrance, be no larger than 45 percent of the main building's gross livable area, and only one ADU is allowed per lot.
    • A manufactured home, mobile home, RV, or park model trailer may not be used as an ADU except as allowed under § 2.150.155.
    • If rented, the property owner must occupy either the main dwelling or ADU as a principal residence; the non-owner-occupied unit may be rented for more than 30 consecutive days or for 30 consecutive days or fewer, but an ADU may not be rented separately from the main dwelling if the main dwelling is not owner-occupied.

    minimum detached ADU area: >= 250 square feet · maximum detached ADU area: <= 45 percent of main building gross livable area · ADUs per lot: 1 ADU

    “Only one Accessory Dwelling Unit per Lot shall be allowed.”
  • Who permits septicCounty (with conditions)

    Construction, repair, alteration, inspection, and approval to discharge for on-site wastewater treatment facilities throughout Pinal County, subject to statutory and district-specific conditions.

    • The code applies to all areas within Pinal County except as provided by law.
    • No person may begin construction of a new on-site wastewater treatment facility or repair or alter an existing facility without an on-site wastewater permit from Pinal County.
    • For an unincorporated-area system, zoning clearance approval must be obtained from Pinal County before the permit is issued.
    • For an incorporated-area system or a system within a community facilities district, wastewater improvement district, or sanitary district, written approval from the agency or district responsible for wastewater disposal must be presented to Pinal County before the permit is issued.
    • No on-site wastewater treatment facility may be covered or operated until a final construction inspection has been conducted and Pinal County has issued approval to discharge.
    • The code states an effective date of January 1, 2022.
    “The provisions of this Code are applicable to all areas within the boundaries of Pinal County EXCEPT AS PROVIDED BY LAW. [...] No person shall begin construction of a new on-site wastewater treatment facility or the repair or alteration of an existing on-site wastewater treatment facility without an on-site wastewater permit from Pinal County.”
    One more reviewed finding on this topic
    • County — Conventional and alternative onsite wastewater disposal systems in Pinal County.
      “The Aquifer Protection Program carries out all aspects of permitting and inspections”
  • Septic permitRequired

    Construction of conventional and alternative septic systems in Pinal County.

    • A permit is required for the applicable onsite wastewater system before construction is authorized.
    • The Type 4.02-4.23 process requires a Notice of Intent to Construct meeting state design requirements.
    • After approval, construction must be completed within two years.
    • A Discharge Authorization is issued after construction, inspection, testing, and verification of applicable requirements.

    covered design-flow range: 0 to less than 24,000 GPD (Type 4.02-4.23 general permit; Pinal County page separately states conventional systems up to 24,000 GPD and alternative systems up to 3,000 GPD) · construction period after approval: 2 years

    “Issue permits to construct septic systems (Conventional and Alternative)”
  • Septic inspectionRequired

    Construction inspection for conventional and alternative septic systems in Pinal County.

    • Pinal County identifies inspection of septic system construction as part of its Aquifer Protection Program.
    • The state permit process requires construction, inspection, and testing before a Discharge Authorization is issued.
    “Once construction, inspection, and testing of the facility is complete, the applicant submits a Notice of Intent to Discharge. A Discharge Authorization is issued once all the requirements for the design, construction, testing, and operation are verified.”
  • Off-grid sanitationAllowed (with conditions)

    Onsite wastewater disposal, including septic systems, for locations in Pinal County without a sewer connection.

    • Use is subject to applicable onsite wastewater permits and inspections.
    • Conventional systems are covered up to 24,000 GPD.
    • Alternative systems are covered up to 3,000 GPD.
    • Alternative onsite wastewater disposal systems are regulated by Pinal County.
    • The source does not establish that every parcel may use an onsite system; site, design, subdivision, and other applicable requirements may apply.

    conventional system design flow maximum: <= 24000 GPD · alternative system design flow maximum: <= 3000 GPD

    “Almost any facility that needs to dispose of wastewater flows associated with typical sewage where sewer is not available”
  • Agricultural exemptionConditional

    Free-standing livestock, hay, ramada, gazebo, and similar shade structures in Pinal County subject to the county building-permit exemption bulletin.

    • The structure must not be greater than 200 square feet in area.
    • Required setback requirements must not be encroached.
    • The bulletin concerns building permits; other planning, development, electrical, plumbing, or mechanical requirements may still apply.
    • The bulletin states that permit exemption does not authorize work violating the building code.

    maximum area: <= 200 square feet

    “Free-standing ramadas, gazebos, livestock, hay and similar structures shall be exempt from building permits provided they are not greater than 200s.f. in area and set back requirements are not encroached.”
  • Driveway accessRequired

    Any proposed new driveway or public/private roadway access onto an existing Pinal County roadway.

    • A Right-of-Way Use Permit must be obtained before installation.
    • Access is subject to approval by the County Engineer.
    • The Pinal County Access Management Manual, latest version, should be followed where applicable.
    • For non-residential access, the minimum throat length is 40 feet and conflicts with parking spaces or internal drive aisles are not permitted in that length.

    minimum throat length for non-residential access: >= 40 feet

    “The minimum throat length of a non‐residential access shall be forty (40) feet. Conflicts with parking spaces or internal drive aisles are not permitted in this length.”
  • Building in a floodplainRequired

    Any development proposed within a floodplain in Pinal County, including single-lot residential development, new homes, and accessory buildings.

    • A Floodplain Use Permit is separate from a Building Permit for single-lot residential development.
    • Commercial and industrial projects and subdivisions also undergo Site Plan Review or Subdivision Review and Platting through Community Development.
    • A proposed structure may be required to be elevated one foot above the base flood elevation.
    • For projects that do not require a Floodplain Use Permit, a Floodplain Clearance may be issued instead.
    • In county-dependent communities, the Pinal County Floodplain Use Permit is required before the city or town approves development plans or permits; listed communities are Coolidge, Eloy, Kearny, Mammoth, Maricopa, Superior, and Winkleman.
    • Applications are submitted through the Citizen Access Portal under Public Works, with plans and supporting documents uploaded for review.

    example elevation requirement: >= 1 foot above base flood elevation (requirement may be imposed depending on the proposed structure)

    “Any development proposed within a floodplain requires a Floodplain Use Permit before construction can begin.”
  • Permit feesPublished (with conditions)

    Building permits, plan reviews, mechanical, plumbing, electrical, grading, and miscellaneous permits charged by the Pinal County Building Safety Department in unincorporated Pinal County.

    • Building fees are calculated using building type, valuation data, and the applicable fee table.
    • Some projects require a plan review fee.
    • When plan review is required, the plan review fee is 65% of the building permit fee and must be paid at application submittal.
    • Building permit fees must be paid before permit issuance.
    • Re-inspection fees, when assessed, must be paid before further inspections.
    • Applications for which no permit is issued within 180 days after application expire by limitation, subject to a possible written extension of up to 180 days for circumstances beyond the applicant's control.

    plan review fee: 65 percent of building permit fee (when plan review is required) · permit expiration period: 180 days (building official may extend by up to 180 additional days on written request showing circumstances beyond applicant's control)

    “This schedule lists fees for building permits, plan reviews and other permits and fees charged by the Pinal County Building Safety Department.”
  • Permit processPublished (with conditions)

    Electronic building-permit submittals and inspections administered by Pinal County Building Safety.

    • Documents must be submitted in PDF format.
    • The parcel number must be entered without dashes.
    • Required documents include an architectural site plan, owner authorization form, construction documents and supporting engineering, and a RES Check report or Manual J & S as applicable.
    • Applicants create an account on the Pinal County Citizen Access Portal.
    • After approval and payment of all fees, approved drawings and the permit are emailed for printing or download.
    • Inspections require a valid permit number and are scheduled through the automated inspection line.

    inspection scheduling phone: 520-866-6299

    “All documents below must be submitted in PDF format / Do not use dashes in parcel# when applying.”

Arizona rules that apply here

  • Owner-builder exemptionAvailable (with conditions)

    Property owners performing construction themselves, with their own employees, or with duly licensed contractors, including projects in Pinal County.

    • The exemption is from Arizona contractor-licensing requirements, not a blanket exemption from local building permits or building codes.
    • The structure, group of structures, or appurtenances must be intended for occupancy solely by the owner.
    • The property must not be intended for occupancy by members of the public as the owner's employees or business visitors.
    • The structures or appurtenances must not be intended for sale or rent.
    • Sale, rent, or an arrangement involving compensation within one year after completion or issuance of a certificate of occupancy is prima facie evidence that the project was undertaken for sale or rent.
    • Pinal County's building permit application includes an Owner Builder application designation, and permit fees and code compliance responsibilities remain applicable.

    occupancy: solely by the owner (Not intended for occupancy by members of the public as the owner's employees or business visitors.) · sale or rent: not permitted under exemption (The structures or appurtenances must not be intended for sale or rent.)

    “A. This chapter does not apply to: [...] Owners of property who improve such property or who build or improve structures or appurtenances on such property”
    One more reviewed finding on this topic
    • Available (with conditions) — An owner who improves property or builds or improves structures or appurtenances and performs the work personally, through the owner's employees, or through duly licensed contractors, when the property is intended solely for the owner's occupancy and is not intended for public occupancy, sale, or rent.
      “who do the work themselves, with their own employees or with duly licensed contractors”
  • Lot coverageDistrict specific (with conditions)

    County zoning regulations in Arizona's unincorporated county zoning districts.

    • A county board of supervisors may establish the percentage of a lot or parcel that may be covered by buildings.
    • The applicable percentage depends on the county zoning ordinance and district; this record does not supply a universal numeric percentage.

    maximum building lot coverage: percentage established by applicable county zoning ordinance percent

    “May establish the percentage of a lot or parcel that may be covered by buildings”
  • Building heightDistrict specific (with conditions)

    County zoning regulations governing the height and location of buildings in Arizona county zoning districts.

    • The applicable height standard depends on the county zoning ordinance and zoning district.
    • No universal statewide residential height limit was established by the reviewed statute.

    building height: regulated by applicable county zoning regulations

    “the height and location of buildings”
  • Well permitRequired

    Drilling a new groundwater well, or deepening or modifying an existing groundwater well, in Pinal County under Arizona's statewide well-drilling requirements.

    • Before drilling a new well or deepening or modifying an existing well, a Notice of Intent to Drill must be filed with the Arizona Department of Water Resources and accompanied by the appropriate filing fee.
    • Authority to deepen an existing well or drill a new well is valid for one year; after one year, a new Notice of Intent must be filed.
    • A licensed well-drilling contractor must perform the work.
    • A Notice of Intent is not required for an exploration or specialty well if it is not expected to hit water and is less than 100 feet deep; if water is encountered, a Notice of Intent must be filed.
    • A Notice of Intent is not required for oil, gas, or helium wells regulated by the Oil and Gas Commission.
    • For a modified or deepened well, the well must be in the current landowner's name and meet minimum well construction standards or be brought up to standard; additional ownership-change and surface-seal documentation may be required.
    • For a domestic-use well on a parcel of 5 acres or less, the 55-40 Notice of Intent must go to the county for review.

    exploration or specialty well depth exemption threshold: < 100 feet (The well must not be expected to hit water; if water is encountered, a Notice of Intent must be filed.) · exempt well typical maximum pump capacity: <= 35 gallons per minute (ADWR describes exempt wells as typically domestic-use wells; other applicable requirements may still apply.)

    “Prior to drilling a new well, or deepening or modifying an existing well, a Notice of Intent to Drill must be filed with ADWR. Forms are available on this site and must be submitted to ADWR accompanied by the appropriate filing fee. Authority to deepen an existing well or drill a new well will be valid for one year. After that, a new Notice of Intent must be filed. A licensed well-drilling contractor must perform the work.”
  • Subdividing landRegulated (with conditions)

    Creation or proposed creation of six or more lots, parcels, or fractional interests in Arizona for sale or lease.

    • Before offering subdivided lands for sale or lease, the subdivider must notify the commissioner in writing of the intention and provide the information required by A.R.S. § 32-2181.
    • A creation of six or more lots, parcels, or fractional interests is subject to the article regardless of lot size unless an enumerated exception applies.
    • Exceptions include each resulting lot, parcel, or fractional interest being at least thirty-six acres on a partition basis, foreclosure or deed-in-lieu transactions, valid court orders or operation of law, specified mineral interests, securities registrations or exempt transactions, a commissioner special-order exemption, or a sale or lease occurring ten or more years after another non-subject sale or lease absent evidence of intent to subdivide.
    • If located in an active management area, the notice generally requires a certificate of assured water supply and proof of applicable fees, unless an applicable written water-service commitment or statutory exemption applies.
    • Outside active management areas, additional adequate-water-supply reporting or disclosure requirements may apply depending on county or municipal adoption and water-supply findings.
    • A person or group acting in concert may not evade the subdivision laws by using a series of owners or conveyances.

    lots or parcels: >= 6 lots or parcels (Subject to statutory exceptions.) · minimum excluded lot area: >= 36 acres per lot or parcel (Partition basis, including contiguous dedicated roads or easements.)

    “Before offering subdivided lands for sale or lease, the subdivider shall notify the commissioner in writing of the subdivider's intention. [...] A creation of six or more lots, parcels or fractional interests in improved or unimproved land, lots or parcels of any size is subject to this article except when:”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Land in Arizona divided or proposed to be divided for sale or lease into six or more lots, parcels, or fractional interests, together with qualifying county land-division reviews.
      “Before offering subdivided lands for sale or lease, the subdivider shall notify the commissioner in writing of the subdivider's intention.”
  • Campground & park staysLimited

    The Arizona Recreational Vehicle Long-Term Rental Space Act applies to a recreational-vehicle space rented in a recreational-vehicle park or mobile-home park by the same tenant for more than 180 consecutive days, and to park-model or park-trailer spaces rented by the same tenant for more than 180 consecutive days.

    • For an ordinary recreational-vehicle space, the space must be rented under a rental agreement.
    • For a park model or park trailer, the chapter applies without regard to whether a rental agreement is executed.
    • The chapter does not apply to mobile homes, manufactured homes or factory-built buildings.
    • The chapter does not apply to a property with one or two recreational-vehicle rental spaces.

    occupancy duration: > 180 consecutive days · same tenant: required · property recreational-vehicle rental spaces: <= 2 spaces (The chapter does not apply to a property with one or two recreational-vehicle rental spaces.)

    “This chapter applies to, regulates and determines rights, obligations and remedies for a recreational vehicle space that is rented in a recreational vehicle park or”
    One more reviewed finding on this topic
    • Limited — Occupancy or use of a mobile home brought into Arizona, or movement of a mobile home from one Arizona mobile-home park to another Arizona mobile-home park.
      “unless it meets the standards adopted pursuant to this chapter and displays the proper state certificate.”
  • county zoning authorityGeneral

    Arizona county boards of supervisors adopting zoning for the county area outside incorporated municipalities, including unincorporated land.

    • The statutory definition of county area of jurisdiction is the part of the county outside the corporate limits of any municipality.
    • The zoning ordinance and rezonings and zoning-regulation amendments must be consistent with and conform to the adopted comprehensive plan.
    • The board must consider individual property rights and personal liberties before adopting a zoning ordinance.
    • The statute does not authorize dedications, exactions, fees, or other requirements not otherwise authorized by law.
    • The statute does not authorize regulation or restriction of railroad, mining, metallurgical, grazing, or general agricultural uses on tracts of five or more contiguous commercial acres, subject to the statutory cannabis and marijuana qualification.
    “Pursuant to this article, the board of supervisors may adopt a zoning ordinance in order to conserve and promote the public health, safety, convenience and general welfare.”
  • county building authorityGeneral

    Arizona county boards of supervisors requiring building permits and adopting building, related, and fire-prevention codes for construction in unincorporated areas, including residential construction.

    • Except in cities and towns with an ordinance relating to building permits, the board of supervisors shall require a permit for construction or additions exceeding $1,000 within its jurisdiction.
    • A county building code under section 11-861 applies to unincorporated areas of the county so zoned, and the board may exempt areas zoned rural or unclassified.
    • Building codes may be adopted by reference only after notice and hearings before the county planning and zoning commission and board of supervisors.
    • Authorized building, electrical, plumbing and mechanical codes must be adopted by a qualifying national code organization or by the largest city in the county; if a city code is adopted, the county must adopt notified changes within 90 days or terminate the adopted city code.
    • A fire-prevention code may be adopted in unincorporated areas where a fire district has not adopted a nationally recognized fire code; it remains effective until a fire district is established and adopts an applicable code.
    • The board may adopt a current wildland-urban interface code using written public-participation procedures.
    • Certain single-family and two-family residential sprinkler requirements are restricted, subject to the statutory exception for codes adopted before December 31, 2009.
    • A county may not deny a building permit based on the proposed capable and authorized utility provider, and may not require a transaction privilege tax or business license as a permit condition.
    • A county may recover reasonable costs associated with reviewing and issuing a building permit.

    building permit construction-cost threshold: > 1000 USD (The requirement does not apply in cities and towns that have an ordinance relating to issuance of building permits.) · city-code change adoption deadline: 90 days (If the county adopts a city code and does not adopt the same notified change within 90 days, it must terminate the adopted city code.) · preexisting sprinkler-code exception date: 2009-12-31 (The statutory sprinkler restriction does not apply to a code or ordinance requiring sprinklers in a residence that was adopted before December 31, 2009.)

    “In any county that has adopted zoning pursuant to this chapter, the board of supervisors may adopt and enforce, for the unincorporated areas of the county so zoned, a building code and other related codes to regulate the quality, type of material and workmanship of all aspects of construction of buildings or structures, except that the board may authorize that areas zoned rural or unclassified may be exempt from the provisions of the code adopted.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Tiny homes — Occupancy of a tiny home on private land in unincorporated Pinal County.
  • Mandatory utility hookup — Whether connection to public water or sewer is required for property in Pinal County.
  • Short-term rentals — Short-term rental or vacation-rental use in unincorporated Pinal County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Pinal County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Arizona’s water agency.

Actively managed

This basin is under active state management — new water use is scrutinized, though a domestic well is usually still allowed.

Household wellExempt — no permit or water right

Small non-irrigation 'exempt' wells (pump capacity 35 gpm or less) are allowed statewide, including inside Active Management Areas and INAs, but must be registered with ADWR; outside any AMA/INA groundwater is essentially rule of capture. Inside an AMA a new subdivision or large use must show an Assured Water Supply.

Limit: exempt well = pump capacity 35 gpm or less (A.R.S. §45-454)

Arizona Dept of Water Resources — Exempt Well ↗
  • Pinal Active Management Areamajority of county

    Management goal is planned depletion, not safe-yield; Assured/Adequate Water Supply rules apply to new subdivisions; small domestic exempt wells (≤35 gpm) still allowed but must be registered.

    Arizona Dept of Water Resources — AMA Overview ↗
  • Phoenix Active Management Areamajority of county

    New subdivisions and large groundwater uses must demonstrate an Assured Water Supply and obtain ADWR authorization; small domestic exempt wells (≤35 gpm) still allowed but must be registered.

    Arizona Dept of Water Resources — AMA Overview ↗

Prior-appropriation state (first in time, first in right). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Arizona state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Pinal County, Arizona

Is Pinal County a good place to live off-grid or homestead?

Pinal County scores 27/100 on the Bolthole Index, a weak county profile. Its strengths: manageable long-term carry cost and a stronger property-autonomy legal backdrop. Watch-outs: weak self-sufficiency basics: only 11.3″ of rain a year, in severe drought 33.9% of years and about 92,197 people within 15 miles.

Do you need a building permit in Pinal County, Arizona?

Pinal County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Pinal County Air Quality & Environmental Health - Aquifer Protection Division (ADEQ-delegated). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Pinal County?

Living in an RV on your own land in Pinal County is limited to specific cases: Placement and occupancy of park models and recreational vehicles on property in unincorporated Pinal County. Park models and RVs are allowed in park model parks or RV parks. A park model or RV may not be placed on a vacant parcel. Confirm with the county before relying on it.

How much does land cost in Pinal County, Arizona?

Land in Pinal County runs about $2,148 per acre, based on the latest county data.

What is the water situation in Pinal County?

Pinal County gets about 11.3" of rain a year, with severe drought in roughly 33.9% of years. On water rights, Pinal County lies in the Pinal Active Management Area — Management goal is planned depletion, not safe-yield; Assured/Adequate Water Supply rules apply to new subdivisions; small domestic exempt wells (≤35 gpm) still allowed but must be registered..

How remote is Pinal County?

A typical private-land location has about 92,197 people within 15 miles and 6,749,418 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

How Pinal compares in Arizona

Compare side-by-side →See all 15 Arizona counties ranked →