Unincorporated Greenlee County, Arizona requires building permits for site-built homes, and the county Planning Office also issues zoning-use and floodplain permits12. County zoning governs private-property development outside incorporated municipalities34. Septic permits go through the Greenlee County Health Department5.
At a glance
- Building permit
- Required for site-built homes in unincorporated Greenlee County12
- Zoning
- County zoning applies outside incorporated municipalities34
- Septic permit
- Issued by the Greenlee County Health Department5
- RV living
- A use permit is required to occupy an individual RV outside an RV park6
- Tiny home
- No separate tiny-home occupancy rule was confirmed; ask Planning & Zoning to classify the unit3
- Owner-builder
- A state contractor-license exemption may apply, but county permits still apply78
- Private well
- File the applicable notice with ADWR before drilling, deepening or modifying a well9
Who to call
Building permits
Greenlee County Planning & Zoning
Zoning-use permits, building permits for site-built homes, floodplain permits and development questions in unincorporated Greenlee County
253 Fifth St, Clifton Az.
Septic permits
Greenlee County Health Department
Water, septic and sewage information and county septic permitting
253 Fifth St, Clifton, AZ 85533
Floodplain permits
Greenlee County Floodplain District
Floodplain status and floodplain permits
253 Fifth St, Clifton Az.
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Greenlee County, Arizona?
Yes. The Greenlee County Planning Office issues building permits for site-built homes on private property in the county's unincorporated area12. Arizona law also requires a county building permit for construction of a building or addition costing more than $1,000 within county jurisdiction, while cities and towns with their own permit ordinances are outside that requirement10. A project may also need a zoning-use permit and a floodplain permit from the Planning Office2. Incorporated Clifton and Duncan are not governed by the county's unincorporated-area zoning rules, so a parcel inside a municipality needs the relevant municipal answer11.
Who is the Greenlee County building department, and how do you reach it?
Greenlee County Planning & Zoning is the first stop for a site-built home in unincorporated Greenlee County; the office issues zoning-use, building and floodplain permits12. Call (928) 865-4762 before visiting the office at 253 Fifth St, Clifton Az., or use the county's linked SmartGov permitting portal12. The county says some permits can be issued by telephone and offers zoning and floodplain status determinations at no cost2. Manufactured-home and septic permits are handled by the Health Department instead2. The county does not publish a complete application checklist, review time or full fee schedule in the reviewed permitting material, so ask Planning & Zoning what plans, site drawings and current fees apply to the specific project2.
Does Greenlee County have zoning?
Yes. Greenlee County zoning applies to development in the unincorporated area, and official zoning maps set the parcel's district3413. District standards control matters such as permitted uses, minimum lot area, setbacks and building height, so the parcel designation matters more than a countywide generalization141516. The county's newer residential-district tables are identified as draft public-review material, so confirm the currently adopted dimensional standards with Planning & Zoning before relying on a design17. Incorporated municipalities may administer their own zoning rather than the county rules11.
How do septic permits work in Greenlee County?
Greenlee County Health Department administers septic permits under authority delegated by the Arizona Department of Environmental Quality518. A septic system may be installed where sewer service is unavailable, but county approval and a septic permit are still required19. The Health Department performs the final inspection after the tank is installed and visible, the trenches are open and the disposal pipe is placed; inspection must occur before backfilling20. Only 2.9% of Greenlee County soils are rated without severe limitations for a conventional drain field, so make a parcel-specific site evaluation a purchase condition21. Call the Health Department at (928) 865-2601 before fixing the house site or system layout22.
Can you live in an RV or tiny home on your land in Greenlee County?
Occupying an individual RV as a residence or dwelling in unincorporated Greenlee County requires a use permit; the rule makes an exception for an RV occupied in an RV park6. The county's reviewed rules did not confirm a separate rule for temporary camping on private land, so ask Planning & Zoning how a proposed stay is classified before moving onto the parcel312. The county's reviewed material also did not establish a distinct tiny-home occupancy category3. Ask Planning & Zoning whether the proposed tiny home will be treated as a site-built dwelling, manufactured home, recreational vehicle or another use, because that classification and the parcel's zoning district determine the permits and dimensional rules1312.
Building a home in Greenlee County: the steps, in order
- Ask Planning & Zoning to confirm county jurisdiction, the zoning district, allowed use, lot standards and setbacks1213.
- Confirm driveway approval: a site adjoining or within 0.25 mile of a state highway must provide Arizona Department of Transportation driveway clearance with its site-plan use permit24.
- Have the Health Department address onsite wastewater and obtain septic approval before installation522.
- Apply for the zoning-use, building and any floodplain permits through Planning & Zoning or the linked online portal212.
- Keep the septic system uncovered until the county completes its final inspection20.
What should you check before buying land in Greenlee County?
Start by confirming whether the parcel is unincorporated and identifying its zoning district, because county standards vary by district and municipal rules may differ1113. Make septic feasibility a contract condition because only 2.9% of county soils are rated without severe limits for a conventional drain field21. Check floodplain status with the county before selecting a pad23. Verify legal access and ask which agency controls the connecting road; access near a state highway can require Arizona Department of Transportation clearance24. A new, deepened or modified private well requires an applicable filing with the Arizona Department of Water Resources and work by a licensed well driller9. Greenlee County averages 16.8 inches of precipitation annually and has experienced severe drought in 41.5% of measured years, making water supply planning central to a rural purchase2526.
Watch-outs
- An individual RV used as a residence in unincorporated Greenlee County needs a use permit unless it is occupied in an RV park6.
- The Arizona owner-builder exemption concerns contractor licensing; it does not remove Greenlee County building, zoning-use, floodplain or septic permit requirements8.
- Published newer residential zoning tables are draft public-review material, so confirm the adopted lot, setback, height and dwelling-size rules with Planning & Zoning before designing17141516.
Sources
- Greenlee County - Planning and Zoning (2026 county census)
- Planning and Zoning, quoted and re-checked
- Planning and Zoning – Greenlee County, Arizona (2026 county census)
- Planning and Zoning – Greenlee County, Arizona, quoted and re-checked
- Greenlee County - Planning and Zoning (2026 county census)
- Greenlee County Zoning Regulations, As of August 4, 2025, quoted and re-checked
- Persons not required to be licensed; penalties; applicability (2026 county census)
- A.R.S. § 32-1121 — Persons not required to be licensed; penalties; applicability, quoted and re-checked
- Well Drilling in Arizona, quoted and re-checked
- Building permits; issuance; state preemption; utilities; distribution of copies; subsequent owner; limitation; definition (Arizona statewide rule), quoted and re-checked
- Planning and Zoning – Greenlee County, Arizona, quoted and re-checked
- Greenlee County Planning & Zoning (greenlee.az.gov)
- Greenlee County Zoning Regulations, as of August 30, 2024, quoted and re-checked
- Greenlee Redline Code as of July 11, 2025, quoted and re-checked
- Greenlee Redline Code as of July 11, 2025, quoted and re-checked
- Greenlee Redline Code as of July 11, 2025, quoted and re-checked
- Greenlee Redline Code as of July 11, 2025, quoted and re-checked
- Onsite Wastewater Treatment Facility | ADEQ (Arizona statewide rule), quoted and re-checked
- Permit Requirements for the Installation of Septic Systems in Greenlee County, quoted and re-checked
- Permit Requirements for the Installation of Septic Systems in Greenlee County, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Greenlee County Health Department (greenlee.az.gov)
- Greenlee County Floodplain District (greenlee.az.gov)
- Greenlee County Zoning Regulations, as of August 30, 2024, quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
Written September 27, 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.