Bolthole Index

Cochise County, Arizona

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

45Index Score / 100
#7 of 15 in Arizona

Unincorporated Cochise County, Arizona requires a residential building permit before you construct a new home, applied for online through the County's permitting portal1. Every parcel in the unincorporated county is assigned one of 34 zoning districts, which set minimum lot size, setbacks and allowed uses23. Septic systems are permitted by the Cochise County Health Department, which issues permits on behalf of the Arizona Department of Environmental Quality4. Qualifying owners can build their own home under the County's Owner-Builder Amendment, which reduces or waives building inspections on eligible rural parcels5.

At a glance

Building permit
Required for new residential construction in unincorporated areas16
County zoning
Yes; every parcel is assigned one of 34 zoning districts23
Septic permit
Issued by the County Health Department on behalf of ADEQ47
Owner-builder
Available in qualifying rural zoning districts, once every 5 years58
RV living
Limited to 6 months a year with an existing home, and a permit is required9
Tiny homes
Allowed anywhere a single-family home is allowed10
Floodplain permit
Required in mapped flood areas; $150 or $65 depending on hydrology study11

Who to call

Building permits

Cochise County Development Services — Building Safety Division

Residential building permits, plan review and inspections for unincorporated Cochise County

520-432-9300

[email protected]

1415 Melody Lane, Building F, Bisbee, AZ 85603

Online permits →

Zoning

Cochise County Planning & Zoning Division

Zoning verification letters, subdivisions and minor land divisions in unincorporated Cochise County

520-432-9300

[email protected]

1415 Melody Lane, Building F, Bisbee, AZ 85603

Septic permits

Cochise County Health Department — Environmental Health Services

Septic and alternative onsite wastewater system permits for Cochise County

520-432-9441

[email protected]

Floodplain permits

Cochise County Engineering & Natural Resource Department

Right-of-way (driveway culvert) permits and floodplain use permits for unincorporated Cochise County

520-432-9310

[email protected]

Contact details are copied from each office’s official page and were checked against it on September 28, 2026.

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

Yes. Unincorporated Cochise County requires a residential building permit to construct a new residential structure, and applications and plan submittals are completed online through the County's permitting portal6. The property must meet zoning requirements and residential use must be allowed before the County will issue the permit, and construction may start only after the permit is posted6. Depending on your site, you may also need floodplain, stormwater/drainage, access/driveway, septic or sewer, well, or fire-district approvals alongside the building permit itself6. Reach the Building Safety Division at Development Services for what your specific project needs12.

Who is the Cochise County building department, and how do you reach them?

Cochise County Development Services, at 1415 Melody Lane, Building F, in Bisbee, is the Building Safety Division that issues residential permits for unincorporated land12. Permit fees are published in the County's Development Services Fee Schedule, and the County offers online, interactive fee calculators to estimate a specific project's cost before you apply, separate from septic, right-of-way, or floodplain fees13. All required inspections are listed on your permit or inspection record card, and you request each one through the County permitting portal; on inspection day, the work area must be accessible, the Inspection Record Card posted, and the work ready14. A final inspection is required before the County will close out your residential building permit1415. Qualifying owner-builders have two paths: Option 1 keeps County plan review and key mechanical, electrical, plumbing and fire-prevention inspections, while Option 2 has no County construction-plan review or building inspections and does not qualify for a Certificate of Occupancy1617.

Does Cochise County have zoning, and what does that mean for your land?

Yes, Cochise County zones unincorporated land: Development Services oversees zoning and land-use planning outside city limits, and the Planning and Zoning Division administers county zoning and subdivision regulations there218. Every parcel in the unincorporated county is assigned one of 34 individual zoning districts, and each district sets its own permitted uses, minimum lot size, setbacks and screening standards3. Minimum lot sizes vary widely by district — the County's own examples include SR districts ranging from 36 acres down to 8,000 square feet and RU districts ranging from 36 acres down to 2 acres, so you need your parcel's specific zoning designation, not a countywide number19. Get that designation from the County's zoning map or by requesting a zoning verification letter from the Planning & Zoning Division2021. Dividing land matters too: splitting one parcel into six or more generally creates a subdivision reviewed under the County's Subdivision Regulations, while a split into five or fewer parcels can instead be a minor land division if the resulting parcels meet the County's acreage condition22.

How do septic and well permits work in Cochise County?

All septic and alternative onsite wastewater systems in Cochise County are reviewed and permitted by the County Health Department, which holds delegated authority from ADEQ, rather than the state agency itself237. A soil and site evaluation must be completed before you apply, and applications are processed through Cochise Health and Social Services24. If you ever sell a home on septic, the seller must hire a certified inspector to perform a transfer-of-ownership inspection within six months before the sale closes, and the buyer must submit a completed Notice of Transfer and pay the fee within 15 calendar days after transfer25. Composting toilets and other alternative systems can be approved, but typically only where site conditions such as high groundwater support that design, and a composting toilet doesn't eliminate the need for an approved system to handle kitchen and sink drain water26. Soils are a real constraint here: only about 12.3% of Cochise County's soils carry no severe limitations for a conventional septic drain field27. For wells, a parcel of five acres or less needs an Environmental Health Department well review permit in conjunction with the state (ADWR); larger parcels are reviewed by ADWR alone. Wells must sit at least 5 feet from property lines and at least 100 feet from septic-system components28.

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

Long-term RV living has real limits here. Cochise County allows temporary occupancy of one RV only in connection with an existing principal use, such as a house, or one under construction under an approved building permit, and that occupancy is capped at six months in a calendar year when there's already a home on the property9. A stay of 15 consecutive days or less tied to a permitted principal use doesn't need a separate temporary-use permit, but longer stays do, and the RV may not be rented out9. Camping isn't allowed on vacant land at all — the County requires a house or some other established use on the property before any camping, in an RV or otherwise, is permitted29. Tiny homes are a different, more settled answer: Cochise County permits tiny homes as single-family dwellings anywhere a single-family home is allowed under the parcel's zoning, provided the home meets applicable building-code, sewer or septic, and water-supply requirements10. A manufactured or rehabilitated mobile home can also serve as an accessory dwelling unit, but only in the zoning districts where that's a permitted use and only alongside an existing single-family home and the County's other ADU standards30.

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

  1. Get a zoning verification letter or check the County zoning map to confirm your parcel's district, minimum lot size and setbacks before you plan anything2019.
  2. If you plan to build it yourself, check whether your parcel qualifies for the Owner-Builder Amendment; it generally requires a zoning district allowing one dwelling per four acres or larger, and an individual can use it once every 5 years8.
  3. Apply online for your residential building permit through the County's permitting portal once your plans are ready1215.
  4. Apply for a septic permit through the County Health Department, or a well-review permit through Environmental Health if your parcel is five acres or less232428.
  5. If your lot lies within a mapped floodplain, get a Floodplain Use Permit before construction begins, and be ready to elevate the lowest floor at least 1 foot above the base flood water surface elevation3111.
  6. If you need driveway access across a county-maintained road ditch, get a right-of-way permit from the Engineering & Natural Resource Department before installing a culvert3132.
  7. Schedule each required inspection through the County portal as you build, and complete the final inspection to close out your permit14.

What should you check before buying land in Cochise County?

Cochise County farmland runs about $2,695 an acre, with a typical home value around $264,8293334. This is dry country: annual precipitation is only about 14 inches, and severe drought has hit roughly 36.5% of years, so water planning matters3536. The land is fairly gentle, with about 71.9% at 15% slope or less, but lightly wooded at just 13.8%3738. Federal land covers a notable 26.3% of the county, which can affect what adjoins a parcel and how it is accessed39. Population density is about 20.1 people per square mile, and the nearest city of 100,000 or more is about 67 miles from the county's center4041. Property taxes run an effective rate near 0.6%, with a median annual bill around $1,3254243. Before you close, get a zoning verification letter for the exact parcel20, check floodplain status on the County's interactive map and confirm with Engineering if you're unsure31, and budget for a site evaluation given that only about 12.3% of soils here are free of severe septic drain-field limitations27.

Watch-outs

  • No official Cochise County source states a minimum dwelling size; zoning districts set minimum lot size and setbacks, but square-footage minimums for the home itself were not confirmed3.
  • Whether short-term rentals are allowed, limited or prohibited in unincorporated Cochise County was not confirmed on an official source; ask Development Services before you plan on one20.
  • No countywide requirement to connect to public water or sewer was confirmed; wells, cisterns and community water systems all appear in County materials as options, so confirm what's available for a specific parcel23.
  • RV occupancy tied to an existing home is capped at 6 months a year and requires a permit beyond 15 days; camping is not allowed on land with no house or other established use at all, so a bare lot isn't a place to park and live while you plan a build929.

Sources

  1. Residential Projects (2026 county census)
  2. Development Services (2026 county census)
  3. Summary of Zoning Districts, quoted and re-checked
  4. Our Services (2026 county census)
  5. Owner Builder Amendment (2026 county census)
  6. Residential Projects, quoted and re-checked
  7. Our Services, quoted and re-checked
  8. Owner Builder Amendment, quoted and re-checked
  9. Development Services Code Compliance FAQs, quoted and re-checked
  10. Tiny Houses, quoted and re-checked
  11. Developing Your Floodplain Property, quoted and re-checked
  12. Cochise County Development Services — Building Safety Division (cochise.az.gov)
  13. Frequently Asked Questions - Development Services Building Safety, quoted and re-checked
  14. Residential Projects, quoted and re-checked
  15. Residential Projects, quoted and re-checked
  16. Owner Builder Amendment, quoted and re-checked
  17. Owner Builder Amendment, quoted and re-checked
  18. Development Services, quoted and re-checked
  19. Summary of Zoning Districts, quoted and re-checked
  20. Cochise County Planning & Zoning Division (cochise.az.gov)
  21. Planning & Zoning Division, quoted and re-checked
  22. Planning & Zoning Division — Subdivisions and Minor Land Divisions, quoted and re-checked
  23. Cochise County Health Department — Environmental Health Services (cochise.az.gov)
  24. Septic Systems, quoted and re-checked
  25. Inspection and Notice of Transfer, quoted and re-checked
  26. Cochise County FAQs, quoted and re-checked
  27. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  28. Well Review Permit, quoted and re-checked
  29. Development Services Code Compliance FAQs, quoted and re-checked
  30. Accessory Dwelling Units — Restrictions, quoted and re-checked
  31. Cochise County Engineering & Natural Resource Department (cochise.az.gov)
  32. Frequently Asked Questions - Public Works / Highways, quoted and re-checked
  33. Farmland value per acre (USDA census): Bolthole Index county data
  34. Typical home value (Zillow): Bolthole Index county data
  35. Annual precipitation: Bolthole Index county data
  36. Share of years in severe drought: Bolthole Index county data
  37. Share of land at 15% slope or less: Bolthole Index county data
  38. Wooded share of land: Bolthole Index county data
  39. Federal land share: Bolthole Index county data
  40. Population density: Bolthole Index county data
  41. Distance to the nearest metro area: Bolthole Index county data
  42. Effective property tax rate: Bolthole Index county data
  43. Median property tax bill: Bolthole Index county data

Written September 28, 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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County locator

Cochise County in Arizona

45
County map
Cochise County highlighted among the Arizona counties · colored by Index score

How Cochise County scores

Seclusion79100% ev.
Self-Sufficiency23100% ev.
Admin Boringness49100% ev.
Durability28100% ev.
Property Autonomy65100% ev.
Carry Cost85100% 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 →

$265kTypical home
0.6%Property tax
$2,695Land / acre
14"Annual rain
36.5% of yrsSevere drought
29.9 / yr (+20.8)Mid-century 100°F days
51.2 daysMid-century dry spell
1.01" (+6.4%)Mid-century 1-day rain
1.16×Wildfire change factor
100%Forward climate coverage
$1,074Home insurance / yr
2.3% / yrInsurance growth
2.24%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
496People within 30 min
264,155People within 2 hr
4,066Radius comparison (15 mi)
20.1People / sq mi
26.3%Federal land
71.9%Land at 15% slope or less
12.3%Septic soil without severe limits
430,520 acWorkable land screen
13.8%Wooded land
5.7 tonsBiomass / forest ac
61.9°FAvg temp

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Answers from the rulebook for Cochise County

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

Cochise County rules

  • Building permitRequired

    Construction of a new residential structure in unincorporated Cochise County.

    • Applications and plan submittals are completed online through the County permitting portal.
    • The property must meet zoning requirements and residential use must be allowed.
    • Floodplain, stormwater/drainage, access/driveway, septic or sewer, well, fire district, and other approvals may apply.
    • Construction may start only after the permit is posted.
    • Requirements may differ in incorporated municipalities.
    “A residential building permit is required to construct a new residential structure in unincorporated Cochise County.”
  • Owner-builder exemptionConditional

    Qualifying property owners acting as owner-builders for residential structures on eligible rural parcels in unincorporated Cochise County.

    • The applicant must be the property owner or authorized agent acting as an owner-builder, not a commercial builder.
    • The project must be residential, not commercial.
    • The property must be in a zoning district allowing a maximum density of one dwelling per four acres or larger and meet all County eligibility requirements.
    • All construction must still comply with County Building Safety Codes and zoning requirements.
    • The owner-builder remains responsible for applicable requirements even when full code compliance is not verified.
    • An individual may use the amendment once every five years on any property they own in unincorporated Cochise County.
    • The five-year limit does not apply to non-habitable accessory structures or additions on the same property.
    • Construction cannot begin until the permit is issued.

    owner-builder participation frequency: per 5 years (The limit does not apply to non-habitable accessory structures or additions on the same property.)

    “You are the property owner (or authorized agent) acting as an owner-builder (not a commercial builder).”
  • Building code adoptedAdopted (with conditions)

    County Building Safety Codes applicable to construction under the Rural Residential Owner-Builder Amendment in unincorporated Cochise County.

    • The Owner-Builder Amendment is limited to eligible rural residential owner-builders.
    • All construction must comply with County Building Safety Codes and zoning requirements.
    • Option 1 includes plan review and limited inspections; only Mechanical, Electrical, Plumbing, and Fire Prevention inspections are required.
    • Option 2 provides no construction plan review and no Building Safety inspections, but the owner-builder remains responsible for meeting safety and building-code requirements.
    • Zoning, floodplain, septic, well, and other non-building approvals still apply.
    • An individual may use the amendment to build a residential dwelling once every five years on any property they own in unincorporated Cochise County; the limit does not apply to non-habitable accessory structures or additions on the same property.

    owner-builder dwelling participation limit: per 5 years (Does not apply to non-habitable accessory structures or additions on the same property.)

    “All construction must still comply with County Building Safety Codes and zoning requirements.”
  • InspectionsLimited

    Eligible owner-builders using Option 1 of the Rural Residential Owner-Builder Amendment.

    • The project must be residential and located on an eligible rural parcel.
    • The property must be in a zoning district allowing a maximum density of one dwelling per four acres or larger and meet County eligibility requirements.
    • The County reviews all construction plans.
    • Mechanical, electrical, plumbing, and fire-prevention inspections are required.
    • Zoning, floodplain, and other County department approvals still apply.
    • A conditioned Certificate of Occupancy may be available.
    “Only key inspections are required: Mechanical, Electrical, Plumbing, and Fire Prevention.”
    2 more reviewed findings on this topic
    • Required — Residential building permits in unincorporated Cochise County.
      “All required inspections will be listed on the permit/inspection record card. Inspection requests must be submitted through the Cochise County Permitting Portal by selecting the active permit, choosing the inspection type, and confirming the appointment. On the day of inspection, the work area must be accessible, the Inspection Record Card must be posted, and the inspected work must be ready.”
    • Not required (with conditions) — Eligible owner-builders using Option 2 of the Rural Residential Owner-Builder Amendment.
      “The County does not review construction plans and does not conduct building inspections.”
  • Certificate of occupancyLimited

    Eligible residential owner-builder projects using Option 1 of the Rural Residential Owner-Builder Amendment.

    • A conditioned Certificate of Occupancy may be issued only for projects under Option 1.
    • Required final inspections must be completed.
    • An inspector must verify that all minimum requirements are met.
    • The conditioned Certificate of Occupancy confirms review of minimum life-safety elements but does not certify full code compliance.
    • Lenders, insurers, or future buyers may request additional inspections or documentation.
    “A conditioned Certificate of Occupancy may be issued only for projects under Option 1 (limited plans and inspection review).”
  • County-wide zoningPresent (with conditions)

    County zoning and land-use regulation in unincorporated Cochise County, outside city limits.

    • The County's Development Services Department oversees zoning and land-use planning for areas outside city limits.
    • The Planning and Zoning Division administers County zoning and subdivision regulations in unincorporated areas.
    • Incorporated municipalities may administer their own rules.
    “oversees permitting, zoning, building code compliance, and land-use planning for areas outside of city limits.”
  • Local zoningPresent (with conditions)

    County-administered local zoning in unincorporated Cochise County.

    • The County's Planning and Zoning Division administers zoning and subdivision regulations in unincorporated areas.
    • The source does not establish that the County administers zoning inside incorporated municipalities.
    “responsible for long and short-range planning in the unincorporated areas.”
  • Zoning districtsPublished

    Zoning districts and parcel-level zoning designations in unincorporated Cochise County.

    • The county states that all property in unincorporated Cochise County is assigned a zoning designation.
    • There are 34 individual zoning districts, broadly classified as Rural, Residential, and Commercial/Industrial.
    • A complete description of each district is in the County Zoning Regulations.
    • A parcel’s zoning can be determined through the county GIS/InfoMaps tool or by requesting a zoning verification letter.
    • District-specific permitted uses, minimum lot sizes, setbacks, screening, and other standards vary by district.

    number of individual zoning districts: 34 districts

    “All property in unincorporated Cochise County is assigned a zoning designation. The purpose of zoning is to guide the development of land in accordance with the County's Comprehensive Plan and to promote the public health, safety, and general welfare of the County's residents. Zoning districts specify permitted land uses, minimum lot sizes, and certain sites development standards such as setbacks and screening.”
  • Minimum lot sizeDistrict specific (with conditions)

    Residential and other development in unincorporated Cochise County; applicable minimum lot size depends on the assigned county zoning district.

    • All property in unincorporated Cochise County is assigned a zoning designation.
    • The County identifies 34 individual zoning districts.
    • Examples listed by the County include SR districts ranging from 36 acres to 8,000 square feet, SM districts ranging from 36 acres to 9,000 square feet, MR districts at 3,600 square feet, R districts ranging from 36,000 to 9,000 square feet, and RU districts ranging from 36 to 2 acres.
    • The specific parcel zoning must be determined using the County zoning map or a zoning verification letter.
    “Zoning districts specify permitted land uses, minimum lot sizes, and certain sites development standards such as setbacks and screening.”
  • SetbacksDistrict specific (with conditions)

    Development in unincorporated Cochise County subject to county zoning standards.

    • The applicable setback depends on the parcel's zoning district and site-development standards.
    • A variance may be required for relief from a setback standard.
    • The County provides zoning verification letters identifying applicable standards for a property.
    “Each zoning district sets allowed land uses, minimum lot sizes, and site standards such as setbacks and screening.”
  • Living in an RVLimited

    Residential occupancy of one recreational vehicle on private property in unincorporated Cochise County.

    • An existing principal use, such as a house, must exist, or a principal use must be under construction pursuant to an approved building permit.
    • An approved temporary use permit is required, except the County temporary-use application states that stays of 15 consecutive days or less do not require a permit when the RV is in conjunction with a permitted principal use.
    • Occupancy with an existing principal use is limited to six months in a calendar year.
    • RV occupancy during construction lasts only for the period of construction and ends when the associated building permit is granted.
    • The RV may not be rented out.

    maximum occupancy with existing principal use: 6 months per calendar year · number of RVs for temporary occupancy: 1 RV (in conjunction with a permitted principal use or construction of a permitted principal use)

    “Temporary occupancy of one RV in conjunction with a permitted principal use”
  • Camping on your landLimited

    Camping on private property in unincorporated Cochise County.

    • Camping is not allowed on vacant property.
    • There must be a house or another established use on the property.
    • The County states this applies to all forms and durations of camping requests.
    • RV camping or living additionally requires the applicable principal-use and temporary-use-permit conditions.
    “No. There must be a house, or some other established use, on the property to camp.”
  • Tiny homesAllowed (with conditions)

    Tiny homes used as single-family dwellings in unincorporated Cochise County.

    • The tiny home must be located where single-family dwellings are allowed under the applicable county zoning designation.
    • The cited County flyer covers single-family homes not exceeding 400 square feet.
    • The dwelling must meet applicable building-code requirements, including plumbing connections to sewer or septic and water supply requirements stated in the flyer.

    maximum floor area covered by flyer: <= 400 square feet

    “Tiny homes are permitted in Cochise County everywhere where single-family dwellings are allowed.”
  • Manufactured homesLimited

    Manufactured homes and rehabilitated mobile homes used as accessory dwelling units in unincorporated Cochise County.

    • The manufactured home or rehabilitated mobile home may be used as an ADU only in zoning districts where it is a permitted use.
    • The ADU must also satisfy the County's ADU requirements, including an existing single-family home, ownership restrictions, development standards, utilities, and applicable septic requirements.
    “Manufactured homes and rehabilitated mobile homes may be permitted as an ADU only in those Zoning Districts where they are a permitted use.”
  • Who permits septicCounty

    Review, approval, and permitting of septic and other onsite wastewater systems in Cochise County.

    • Cochise County exercises delegated onsite-wastewater authority on behalf of ADEQ.
    “ADEQ has authority for issuing permits for OWTFs and has delegated this authority to each of the 15 counties, which issue permits on behalf of ADEQ.”
  • Septic permitRequired

    A sewage disposal permit for a septic or alternative onsite wastewater system in Cochise County.

    • A soil and site evaluation must be completed before applying.
    • Applications are accepted and processed through Cochise Health and Social Services offices.
    • Alternative systems may be reviewed by ADEQ or the Health Department depending on the system chosen.
    “All wastewater systems are reviewed and permitted by the Cochise County Health Department.”
  • Off-grid sanitationLimited

    Composting toilets and other alternative onsite wastewater systems in Cochise County.

    • Alternative systems must meet County and State requirements.
    • They are typically approved only when site conditions support an alternative design, such as high groundwater or other limiting conditions.
    • Alternative systems generally must be designed by an Arizona-certified professional.
    • Depending on the system, review may be by the County Health Department or ADEQ.
    • Approval of a composting toilet does not eliminate the possible requirement for a septic system or other approved wastewater disposal system for sink and kitchen plumbing.
    • Kitchen drain water must be handled through an approved system.
    “Composting toilets and other alternative systems may be allowed, but they must meet County and State requirements and are typically approved only when site conditions support an alternative design (for example: high groundwater or other limiting conditions).”
  • Well permitRequired

    Drilling, deepening, replacing, or modifying/repairing a well on a Cochise County parcel of five acres or less.

    • The Environmental Health Department acts in conjunction with ADWR.
    • Parcels greater than five acres are reviewed and approved by ADWR only.
    • The application must include a site plan showing required setbacks and an ADWR Notice of Intent to drill, deepen, or modify a well.
    • Wells must be at least 5 feet from property lines and at least 100 feet from septic-system components.
    • An inspector must access the property to verify setbacks and take GPS readings.

    minimum distance from property lines: >= 5 feet · minimum distance from septic components: >= 100 feet · parcel-size threshold: <= 5 acres

    “Environmental health department well review permits are required for permission to do the following on parcels that are five acres or less:”
  • Agricultural exemptionAvailable (with conditions)

    General agricultural zoning exemptions and eligible accessory agritourism activities in Cochise County.

    • The tract must contain at least 5 contiguous commercial acres (175,000 square feet) used for crop production or raising livestock.
    • A reasonable operating profit must be possible.
    • Applicants must provide verifiable documentation of active agricultural use; physical inspections may be conducted.
    • The exemption does not cover Health Department requirements such as septic permits, county right-of-way permits, subdivision regulations, floodplain permits, manufactured-home installation permits, or improvements not incidental to agriculture or agritourism.
    • Agritourism uses must be accessory and subordinate to the farm or ranch's primary agricultural use.
    • Agritourism events require a Special Event Permit.
    • Other uses may be approved case-by-case by the Zoning Administrator.
    • Applications are administratively approved or denied, with written email notification.

    minimum qualifying tract: >= 5 contiguous commercial acres (The tract must be used for crop production or raising livestock.) · minimum qualifying area: >= 175000 square feet (The County describes this as equivalent to five contiguous commercial acres.) · commercial items in on-site retail: <= 25 percent maximum (Non-agriculture items.) · commercial stables acreage threshold: >= 10 acres (For listed outdoor recreation.)

    “Must be a tract of at least 5 contiguous commercial acres (175,000 SF) used for crop production or raising livestock.”
  • Subdividing landRegulated (with conditions)

    Creation of subdivisions in unincorporated Cochise County.

    • A subdivision is generally created when one parcel is divided into six or more parcels, or when required by the Subdivision Regulations.
    • Subdivisions are reviewed under the Cochise County Subdivision Regulations.
    • A division into five or fewer parcels may instead be a minor land division when resulting parcels meet the County's stated acreage condition; staff reviews compliance with zoning, access, and whether the split is subject to the Subdivision Regulations.

    parcels triggering general subdivision threshold: >= 6 parcels (The County states 'or when required by the Subdivision Regulations'.) · minor land division parcel count: <= 5 parcels (Resulting additional parcels must include one or more parcels of 10 acres or smaller.)

    “A subdivision is generally created when one parcel is divided into six (6) or more parcels, or when required by the Subdivision Regulations. Subdivisions are reviewed under the Cochise County Subdivision Regulations.”
  • Driveway accessLimited

    Access to private property via a driveway culvert crossing roadway ditches within county public, maintained rights-of-way.

    • A County Right-of-Way permit must be completed and submitted to the Cochise County Engineering and Natural Resources Department.
    • The appropriate fee must accompany the permit submission.
    • If approved, installation must be compatible with existing conditions, including drainage, flow-line elevations, and maintenance requirements.
    • The property owner is responsible for purchasing and installing the driveway culvert according to permit specifications.
    “Therefore, if a resident desires access to private property via a driveway culvert across roadway ditches within County public, maintained rights-of-way, a County Right-of-Way permit must be completed and submitted to the Cochise County Engineering and Natural Resources Department, along with the appropriate fee, for review.”
  • Building in a floodplainRequired

    Construction or development, including placement of manufactured homes, within Cochise County OFA and OA areas with Regulatory Flood discharges and SFHA areas.

    • A Floodplain Use Permit must be obtained before construction or development begins.
    • The applicant must submit a site plan showing the proposed development and floodplain.
    • A County Building/Use Permit and Floodplain Use Permit are issued through Development Services.
    • A completed elevation certificate must be returned to the Floodplain Division.
    • The lowest floor of any habitable structure must be elevated at least one foot above the base flood water surface elevation.
    • Safe access for standard vehicles must be provided to every lot.
    • New construction or development in a designated floodway is prohibited unless an Arizona-registered professional civil engineer certifies that encroachments will not increase flood levels during the base flood discharge.
    • Erosion-hazard setbacks apply; the brochure states that improvements may not be placed within the applicable erosion setback.
    • A floodplain permit fee is charged under the adopted fee schedule; the 2023 regulations list $150 for a single/multi-family residence or manufactured home without an approved drainage/hydrology study and $65 when an approved hydrology and hydraulics report has been submitted.

    minimum elevation above base flood water surface elevation: >= 1 foot (lowest floor of any habitable structure) · floodplain permit fee without approved drainage/hydrology study: 150 USD (single- and multi-family residence and manufactured home) · floodplain permit fee with approved hydrology and hydraulics report: 65 USD (single- and multi-family residence and manufactured home)

    “A Floodplain Use Permit shall be obtained before construction or development begins, including placement of manufactured homes, within any OFA and OA with Regulatory Flood discharges and SFHA.”
  • Permit feesPublished

    County building-permit fees for projects administered by Cochise County Development Services.

    • The county publishes fees in the Development Services Fee Schedule.
    • Online fee calculators are available for residential and commercial/non-residential projects.
    • Residential permit-fee calculations do not include septic, right-of-way, or floodplain permit fees.
    “All permit fees are included in the Development Services Fee Schedule. We also have online, interactive permit fee calculators to help you estimate your specific project costs.”
  • Permit processPublished (with conditions)

    New residential structures in unincorporated Cochise County.

    • A residential building permit is required for a new residential structure.
    • Applications and plan submittals are completed online through the county permitting portal.
    • A final inspection is required to close a residential building permit.
    • Permits are closed only after the final inspection is completed and documented.
    • A Certificate of Occupancy may be issued after required final inspections and verification of minimum requirements when the project is eligible.
    “A residential building permit is required to construct a new residential structure in unincorporated Cochise County. Applications and plan submittals are completed online through the County’s permitting portal.”

Arizona rules that apply here

  • 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”
  • Septic inspectionRequired

    Properties in Cochise County using a conventional or alternative onsite wastewater system when ownership is transferred through a home resale.

    • The inspection program is triggered by resale of a home by an owner or with the assistance of a real estate professional.
    • The seller must retain a certified inspector.
    • The inspection must occur within six months from the inspection date to the property-transfer date.
    • The buyer must submit a completed Notice of Transfer and pay the fee within 15 calendar days after transfer.
    • For Cochise County, the ADEQ notice-of-transfer form provides submission instructions.

    inspection timing: within six months from inspection date to transfer date · notice of transfer deadline: 15 calendar days after transfer

    “The seller of a property served by a conventional septic system or alternative system shall retain a certified inspector to perform the transfer of ownership inspection within six months from the date of the inspection to the date of when the property is transferred.”
  • 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.

  • Minimum dwelling size — Minimum dwelling size for residential development in unincorporated Cochise County.
  • Mandatory utility hookup — Countywide requirements to connect a property to public water or sewer utilities.
  • Short-term rentals — Short-term rental use in unincorporated Cochise 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 Cochise 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 ↗
  • Douglas Active Management Areapartial of county

    Converted from an INA to an AMA by the Nov 2022 vote; Assured/Adequate Water Supply and ADWR authorization required for new large/subdivision uses; small domestic exempt wells (≤35 gpm) still allowed.

    Arizona Dept of Water Resources — AMA Overview ↗
  • Willcox Active Management Areapartial of county

    Newest administratively-designated AMA (effective Jan 1, 2025); new large/subdivision groundwater uses become subject to ADWR authorization and Assured Water Supply rules; small domestic exempt wells (≤35 gpm) still allowed.

    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 Cochise County, Arizona

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

Cochise County scores 45/100 on the Bolthole Index, a marginal county profile. Its strengths: manageable long-term carry cost and deep seclusion — about 496 people within a 30-minute drive. Watch-outs: weak self-sufficiency basics: only 14″ of rain a year, in severe drought 36.5% of years and elevated mid-century heat, water, rain, or wildfire exposure.

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

Cochise County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Cochise County Health Department, Environmental Health Services Division. 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 Cochise County?

Living in an RV on your own land in Cochise County is limited to specific cases: Residential occupancy of one recreational vehicle on private property in unincorporated Cochise County. An existing principal use, such as a house, must exist, or a principal use must be under construction pursuant to an approved building permit. An approved temporary use permit is required, except the County temporary-use application states that stays of 15 consecutive days or less do not require a permit when the RV is in conjunction with a permitted principal use. A tiny home is allowed. Confirm with the county before relying on it.

How much does land cost in Cochise County, Arizona?

Land in Cochise County runs about $2,695 per acre, based on the latest county data.

What is the water situation in Cochise County?

Cochise County gets about 14" of rain a year, with severe drought in roughly 36.5% of years. On water rights, Cochise County lies in the Douglas Active Management Area — Converted from an INA to an AMA by the Nov 2022 vote; Assured/Adequate Water Supply and ADWR authorization required for new large/subdivision uses; small domestic exempt wells (≤35 gpm) still allowed..

How remote is Cochise County?

A representative private-land location has about 496 people within a 30-minute drive and 264,155 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

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

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How Cochise compares in Arizona

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