Off-grid site report
Wheeler County, OR
45.0657, -119.9448 · 4,285 ft elevationRead this before you act on anything below. This is my researched starting point for Wheeler County, OR, 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 rulesWheeler County, OR
Zoning & raw-land occupancy
Varies locallyWheeler County Planning Department administers its own Zoning Ordinance for unincorporated land outside Fossil, Mitchell, and Spray; those three towns apply their own municipal zoning instead. source
Dwellings, tiny homes & RVs
Unclear - verifyNo official Wheeler County page specifies minimum dwelling size, RV-as-residence rules, or SB 1013 opt-in status; the county directs applicants to its Zoning Ordinance or to call Planning directly.
Building permits & codes
Generally allowedWheeler County has no local building department; the Oregon Building Codes Division's Pendleton field office issues all structural, electrical, mechanical, and plumbing permits, after zoning and DEQ/septic approval. source
Septic & composting toilets
Generally allowedHarney County's Onsite Sanitation program handles septic site evaluations, construction permits, and repairs for Wheeler County under contract; a Wheeler County Land Use Compatibility Statement is required first. source
Greywater reuse
Unclear - verifyNo Wheeler County or Harney County page addresses greywater specifically; the statewide DEQ tiered greywater permit program presumably applies without local modification, but that's not confirmed locally.
Rainwater harvesting
Generally allowedState law exempts rooftop rainwater collection into storage tanks from water-rights permitting, and no Wheeler County restriction was found. source
Private wells & water rights
Generally allowedWells and water rights are administered by the Oregon Water Resources Department under state rules; no Wheeler County supplemental well ordinance was found. OWRD requires a Landowner's Water Well Permit for owner-built wells. source
Living disconnected from utilities
Generally allowedNo countywide off-grid ban was found, but a permitted dwelling still needs an approved septic/wastewater plan and legal water source before the state Building Codes Division will issue a permit. source
Sun30-year normals
- Peak-sun hours, annual average
- 5.0 hrs/day
- Worst month (sizes an off-grid array)
- 2.4 hrs/day
- Yearly output per 1 kW of panels
- 1,431 kWh
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Weather1991-2020
- Precipitation
- 15 in/yr
- Snowfall
- 7 in/yr
- Heating degree days
- 5,007 (moderate)
- Frost-free season
- May 3 to Oct 9
How far help isstraight-line
- Hospital
Pioneer Memorial Hospital - 27.8 mi
- Fire station
- none within range
- Hardware store
- none within range
- Grocery
Fossil Mercantile - 13.9 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 97830).
Size a solar systemHeat loss & insulationFirewood per winterRainwater harvestGarden sizePanel tilt
Looking at a specific parcel in Wheeler County, OR?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 21, 2026; agencies update their layers on their own schedules. Planning data, not a survey or legal advice.