Off-grid site report

Malheur County, OR

43.5853, -118.2092 · 3,350 ft elevation

Read this before you act on anything below. This is my researched starting point for Malheur 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 rulesMalheur County, OR

Zoning & raw-land occupancy

Varies locallyMalheur County has countywide zoning with resource zones (EFU, ERU, EFFU) that permit farm uses outright but generally require a Conditional Use Permit for a dwelling on raw resource land. Administered by the county Planning & Zoning Department. source

Dwellings, tiny homes & RVs

Unclear - verifyNo official county page confirms rules for tiny homes on wheels or RV living; not confirmed whether the county opted into Oregon's SB 1013 rural RV-dwelling program. Confirm directly with Planning & Zoning. source

Building permits & codes

Generally allowedThe county Building Department issues building, electrical, mechanical, and plumbing permits, separate from the Planning & Zoning structural/site permit process, per the county's own permitting pamphlet. source

Septic & composting toilets

Generally allowedMalheur County Environmental Health administers Oregon DEQ's onsite wastewater program locally, and permits are required for new septic construction, alteration, repair, or replacement. source

Greywater reuse

Generally allowedNo county-specific greywater rule was found; the county appears to follow Oregon DEQ's statewide greywater permitting tiers. source

Rainwater harvesting

Generally allowedNo county ordinance restricting rooftop rainwater collection was found; the county appears to defer to the state's general exemption for roof-collected rainwater.

Private wells & water rights

Generally allowedWell construction and water-right exemptions are governed by the Oregon Water Resources Department at the state level, not by Malheur County, though county EFU code ties farm-dwelling siting to state statute. source

Living disconnected from utilities

Unclear - verifyNo official county page explicitly bans off-grid utility disconnection, but the county's new-house permitting sequence requires septic (Environmental Health) approval alongside the structural permit, which effectively constrains fully off-grid setups.

Open the full county page with sources →

Sun30-year normals

Peak-sun hours, annual average: 5.2 hrs/day
Worst month (sizes an off-grid array): 2.7 hrs/day
Yearly output per 1 kW of panels: 1,493 kWh

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Weather1991-2020

Precipitation: 10 in/yr
Heating degree days: 6,615 (cold)

How far help isstraight-line

Service data unavailable for this spot.

Plan this spot

These open with this location's real numbers already filled in (ZIP 97917).

Size a solar system Heat loss & insulation Firewood per winter Rainwater harvest Garden size Panel tilt

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.