Off-grid site report
Pinal County, AZ
32.8791, -111.7280 · 1,414 ft elevationRead this before you act on anything below. This is my researched starting point for Pinal County, AZ, not legal advice and not a guarantee. Rules change, and the deciding facts on any specific parcel (setbacks, perc results, overlay districts, deed restrictions, road frontage) live at the county or town office, not in any database. Before you buy land or build, confirm the current rules directly with the local zoning and health offices - the sources on this page tell you exactly who to call.
The local rulesPinal County, AZ
Zoning & raw-land occupancy
Varies locallyPinal County's Planning Division administers zoning districts with their own setback and animal-count rules; rezoning is possible but only the Board of Supervisors can approve it. source
Dwellings, tiny homes & RVs
RestrictedRVs and park models cannot be used as permanent residences on vacant land, only in licensed parks, though a Temporary Use Permit may allow an owner-builder to live in an RV while building under an active permit. Manufactured homes are allowed only if built after June 15, 1976 to HUD standards. source
Building permits & codes
Generally allowedPinal County is its own building authority for unincorporated land and requires permits, including for accessory residential solar installations under its Development Services Code; confirm the currently adopted code edition directly with Building Safety. source
Septic & composting toilets
Generally allowedNew septic systems require a permit and site inspection through the county's Aquifer Protection Division, which operates under authority delegated by the state's ADEQ. Composting toilets are not addressed in county sources found, so confirm separately. source
Greywater reuse
Generally allowedNo Pinal County-specific greywater ordinance was found; greywater reuse appears to fall under Arizona ADEQ's statewide general permit tiers, but this was not separately confirmed at the county level.
Rainwater harvesting
Generally allowedNo county-specific rainwater harvesting restriction or permit requirement was found beyond the state baseline; not separately confirmed at the county level.
Private wells & water rights
RestrictedPrivate wells are regulated statewide by ADWR, requiring a Notice of Intent to Drill before drilling, deepening, or modifying a well; Pinal County only reviews and refers applications for parcels five acres or smaller. source
Living disconnected from utilities
Generally allowedLiving off utility hookups is permitted in unincorporated Pinal County as long as you get separate permits for wells, septic, and solar, and comply with the RV/park-model occupancy restriction. source
Sun30-year normals
- Peak-sun hours, annual average
- 6.6 hrs/day
- Worst month (sizes an off-grid array)
- 5.2 hrs/day
- Yearly output per 1 kW of panels
- 1,786 kWh
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Weather1991-2020
- Precipitation
- 8 in/yr
- Snowfall
- 0 in/yr
- Heating degree days
- 1,307 (mild)
- Frost-free season
- Jan 31 to Dec 17
- Design low
- 32 °F
How far help isstraight-line
- Hospital
Banner Casa Grande Medical Center - 1.0 mi
- Fire station
Casa Grande Fire Department - 6.2 mi
- Hardware store
Ace Hardware - 0.1 mi
- Grocery
Fry's Food and Drug - 0.0 mi
From OpenStreetMap. Road miles will be longer, often much longer in hill country.
Plan this spot
These open with this location's real numbers already filled in (ZIP 85122).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Pinal County, AZ?The rules above are the jurisdiction. The land check runs the parcel itself: flood zone, soils and septic suitability, wetlands, slope, access, climate, and these verdicts, from a parcel number or coordinates.
Check a parcel →Share or save this report:New report
Sources: US Census Bureau geocoder; NLR PVWatts v8 (solar); NOAA NCEI 1991-2020 climate normals (nearest station) or Open-Meteo (ZIP-centroid) for weather; Open-Elevation; OpenStreetMap contributors. Public data retrieved Aug 22, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.
New here, or not sure where this fits? Start here walks through the whole thing in order.