Harney County, OR Building Permits, Zoning & Septic Rules

Unincorporated Harney County, Oregon requires building permits for covered residential work, and the Harney County Planning Department administers the program¹. Harney County also has county zoning, while its Onsite Sanitation program processes local septic applications²³. An RV is not a permanent residence unless it is in a permitted RV park or receives land-use approval⁴.

At a glance

Building permit: Required for covered residential construction, enlargement, alteration, repair or moving⁵
Zoning: Yes; the county zoning ordinance is the local land-use framework⁶
Septic permits: Handled locally by Harney County Onsite Sanitation under Oregon's DEQ program³⁷
RV living: Not a permanent residence without a permitted RV park or land-use approval⁴
Owner-builder: A limited statewide exemption exists, but the owner-builder still needs a building permit⁸
Resource-land lots: State minimums vary by farm-use, rangeland and forestland classification⁹
Private wells: Groundwater use and owner-performed well work are regulated and may require separate approvals¹⁰
Septic soil difficulty: Only about 3% of county soils are free of severe limits for a conventional drain field¹¹

Who to call

Building permits

Harney County Building Program

Residential and commercial building permits and inspections in Harney County

Online permits →

Planning & zoning

Harney County Planning Department

Zoning, land-use applications and parcel-specific planning questions

Septic permits

Harney County Onsite Sanitation

Site evaluations, septic construction permits, connections and repairs in Harney County

Online permits →

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 Harney County, Oregon?

Yes. Harney County requires a building permit to construct, enlarge, alter, repair or move a covered residential building or structure⁵. The statewide residential code covers construction, reconstruction and repair of one- and two-family dwellings and townhouses¹². A narrow exemption may cover a detached, nonhabitable, one-story accessory structure under 200 square feet and under 15 feet from the floor to the average roof height, but separate electrical, plumbing or mechanical permits may still apply⁵. Qualifying agricultural buildings can be exempt from the structural specialty code, but that exemption does not cover a dwelling or erase electrical, plumbing and mechanical permit requirements¹³. Confirm the project category with the Harney County Building Program before ordering materials.

Who handles Harney County building permits and inspections?

The Harney County Planning Department administers building permits, while the county's Building Program is the practical starting point for applications and inspections¹. Oregon places responsibility for obtaining necessary permits on the person doing the work, whether that person is a contractor or homeowner⁵. Online homeowner applications may be available through Oregon ePermitting, but participation is voluntary and each participating jurisdiction decides which permits it sells online¹⁴. Permit fees also depend on the work: Oregon's methods differ for structural, electrical, plumbing and mechanical permits, and local departmental fees may be added¹⁵. Once work begins, the permit holder must request required inspections and may not cover work or advance beyond an inspection point without approval¹⁶.

Does Harney County have zoning?

Yes. Harney County's Zoning Ordinance supplies the county-administered legal framework for land-use regulation, with distinct zoning designations and parcel maps available through the Planning Department⁶. That means a rural parcel should not be treated as unrestricted simply because it is remote. Resource-land classification can be decisive: Oregon generally sets minimum parcels of 80 acres for exclusive farm-use land not designated rangeland, 160 acres for farm-use rangeland and 80 acres for designated forestland, subject to statutory exceptions and acknowledged local provisions⁹. Local standards can also differ by district; for example, the Rural Community–Drewsey district limits total building coverage to 60% of the lot¹⁷. Ask the Planning Department for the parcel's zoning map designation and the allowed-use, setback and siting rules that follow from it before relying on a listing description.

How do septic permits work in Harney County?

Harney County Onsite Sanitation locally administers septic services under Oregon's DEQ onsite wastewater program³¹⁸. A construction permit covers a new septic system as well as alterations or repairs, and an undeveloped site that has never received septic approval needs a site evaluation¹⁹. The county also requires an affirmative Land Use Compatibility Statement before a construction permit for new construction or an alteration can issue¹⁹. Treat that evaluation as an early purchase contingency: only about 3% of Harney County soils are mapped without severe limitations for a conventional drain field¹¹. Where public sewer is not legally and physically available, an onsite system still must meet usable-space, setback, capacity, soil and water-table requirements²⁰. A composting toilet does not remove the need for approved wastewater handling for the home's other plumbing²¹.

Can you live in an RV or tiny home in Harney County?

An RV cannot serve as a permanent residential structure in unincorporated Harney County unless it is in a permitted RV park or receives land-use approval⁴. During construction of an approved dwelling, temporary RV occupancy requires written authorization from the Planning Director; occupancy beyond 30 days without that authorization is out of compliance⁴. Harney County does not issue building permits for an RV, and an RV may not be permanently connected to a septic system⁴. We could not confirm a separate county rule for occupying a tiny home or tiny home on wheels, or a general minimum dwelling floor area. Ask the Planning Department to classify the proposed unit and confirm the parcel's allowed use before buying. A manufactured dwelling follows a different statewide path and still needs adequate approved water, sewage disposal and compliant utility installations²².

What are the steps to build a home in Harney County?

Ask the Harney County Planning Department to confirm the parcel's zoning designation, whether a dwelling is allowed and which land-use approval comes first⁶.

Secure a septic site evaluation and the required land-use compatibility approval through Harney County Onsite Sanitation before finalizing the house location¹⁹.

Resolve the water source; groundwater use and owner-performed well construction may require separate state applications, permits and bonding¹⁰.

Submit the residential plans and required specialty-permit applications through the Harney County building program¹⁵.

Request inspections as each permitted stage becomes ready, and do not conceal work before approval¹⁶.

Obtain the certificate of occupancy before living in a new dwelling unless the building official issues a temporary certificate²³.

What should you check before buying land in Harney County?

Start with legal buildability, not acreage alone: confirm zoning, dwelling eligibility and any resource-land minimum parcel rule with the Planning Department⁶⁹. Make septic feasibility a contract contingency because only about 3% of county soils are mapped without severe limits for a conventional drain field¹¹. Verify water quantity and water rights independently; a landowner who personally constructs or alters a supply well can face a $550 permit fee, a $10,000 bond and a 6-month permit term¹⁰. Harney County averages about 12.6 inches of precipitation annually, and severe drought occurs in about 41.2% of years, so do not assume a parcel has dependable domestic or livestock water²⁴²⁵. Also check surveyed access, flood exposure and road jurisdiction. About 73.3% of the county is federal land, making legal access across neighboring ownership especially worth verifying²⁶.

Watch-outs

Harney County's owner-builder exemption is limited to specified structural-code subjects and does not eliminate the building permit⁸.
An RV occupied during construction needs written authorization from the Planning Director, and an RV may not be permanently connected to a septic system⁴.
A parcel advertised as farm or ranch land may face an 80-acre or 160-acre state resource-zone minimum, subject to exceptions and local acknowledged provisions⁹.

Sources

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.

How Harney County scores

Seclusion89100% ev.

Self-Sufficiency18100% ev.

Admin Boringness42100% ev.

Durability28100% ev.

Property Autonomy72100% ev.

Carry Cost79100% 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 →

$219kTypical home

1%Property tax

$1,268Land / acre

12.6"Annual rain

41.2% of yrsSevere drought

3.3 / yr (+3)Mid-century 100°F days

37.7 daysMid-century dry spell

0.77" (+8.6%)Mid-century 1-day rain

1.11×Wildfire change factor

100%Forward climate coverage

$1,167Home insurance / yr

3.9% / yrInsurance growth

0.92%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

160Radius comparison (15 mi)

0.7People / sq mi

73.3%Federal land

72.3%Land at 15% slope or less

3%Septic soil without severe limits

189,773 acWorkable land screen

9.1%Wooded land

20.2 tonsBiomass / forest ac

46.4°FAvg temp

Answers from the rulebook for Harney County

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

Harney County rules

Local zoningPresent (with conditions)
Harney County's county-administered local zoning framework for land-use regulation.
- The county identifies its Zoning Ordinance as the legal framework for land-use regulations in the County.
- The ordinance contains zoning designations and specific provisions; zoning maps may be obtained electronically from the Planning Department.
- This claim addresses the county's own local zoning authority and does not determine whether incorporated municipalities administer separate municipal ordinances.
“The Harney County Zoning Ordinance provides the legal framework for the land use regulations in the County. Each zoning designation and the specific provisions are listed here as well as maps for each zoning designation.”
Land Use & Zoning Program | Harney County, Oregon ↗Re-checked Sep 24, 2026
Lot coverageDistrict specific (with conditions)
Lot coverage in the Rural Community–Drewsey (RC-DR) zoning district.
- The cited coverage limit applies specifically to the RC-DR Zone.
- The ordinance contains other district-specific provisions that were not aggregated into a countywide percentage.
maximum building coverage: <= 60 percent of lot area
“All buildings located thereon shall cover no more than sixty (60) percent of the lot area.”
Harney County Zoning Ordinance ↗Re-checked Sep 24, 2026
Building heightDistrict specific (with conditions)
Building height controls under Harney County zoning overlays and conditional-use standards in the unincorporated area.
- In the Airport Vicinity Overlay Zone, structures may not project above airport approach, transitional, horizontal or conical surfaces and may be further limited by the Planning Commission or government authorities.
- For conditional uses, zone height limitations may be exceeded to a maximum of 75 feet if each yard is increased by five feet for every five feet or fraction thereof above 35 feet.
conditional-use maximum height: <= 75 feet (each yard must be increased by five feet for every five feet or fraction of additional height over 35 feet)
“The height limitations of any zone may be exceeded by a conditional use to a maximum permitted height of 75 feet”
Harney County Zoning Ordinance ↗Re-checked Sep 24, 2026
Living in an RVLimited
Recreational-vehicle occupancy and residential use in unincorporated Harney County.
- An RV may not be used as a permanent residential structure unless it is located in a permitted RV Park or otherwise receives land-use approval.
- An RV may be temporarily inhabited during construction of an approved dwelling only with written authorization from the Planning Director.
- An RV inhabited for more than 30 days without that authorization is out of compliance.
- Building permits are not issued for RVs, including electrical, manufactured-home placement, mechanical, plumbing, or structural permits.
- An RV may not be permanently connected to any septic system.
maximum temporary occupancy without Planning Director authorization: <= 30 days (Authorization is required for occupancy during construction of an approved dwelling.)
“are not to be used as permanent residential structures”
Harney County Zoning Ordinance ↗Re-checked Sep 24, 2026
Who permits septicCounty
Local onsite sanitation services and septic application processing in Harney County.
- Harney County provides onsite sanitation services for Harney County and several neighboring counties.
- The county page states that the same septic approval process is used across all six counties served.
“Harney County provides Onsite Sanitation services to Baker, Grant, Harney, Union, Wallowa and Wheeler Counties.”
Onsite Sanitation | Harney County, Oregon ↗Re-checked Sep 24, 2026
Subdividing landRegulated (with conditions)
Subdivision and land division in the unincorporated area of Harney County, including exclusive farm-use zones.
- The county ordinance requires review and approval or disapproval of proposed divisions creating one or more parcels in exclusive farm-use zones.
- For non-farm dwellings in exclusive farm-use zones, the county shall not approve a subdivision or series partition unless the dwelling has been approved under the cited Oregon statutes.
- The ordinance states that the cemetery-lot and foreclosure exceptions do not apply to the cited subsection.
- A land division for non-farm use requires payment of any additional tax imposed for the change in use.
“The Subdivision and Partitioning Ordinance provides the regulations regarding the division of land and the development of multiple lots for residential purposes.”
Land Use & Zoning Program | Harney County, Oregon ↗Re-checked Sep 24, 2026
County-wide zoningPresent
Harney County has adopted a countywide Zoning Ordinance and Comprehensive Plan under Oregon statewide land-use law; all Oregon counties are zoned.
Harney County Zoning Ordinance ↗Scouted from the county site, not yet independently re-checked

Oregon rules that apply here

Building permitRequired
Residential construction, enlargement, alteration, repair, or movement in Harney County, subject to Oregon's statewide building-permit rules and listed exemptions.
- The person performing the work, whether homeowner or contractor, is responsible for obtaining necessary permits.
- Work exempt from a building permit may still require mechanical, electrical, or plumbing permits.
- Local land-use and planning/zoning laws must be considered first, and project-specific local permitting questions must be addressed to the local jurisdiction.
- A nonhabitable, detached, one-story accessory structure may be exempt when it is less than 200 square feet and less than 15 feet from floor to average roof height.
- Other listed exemptions include certain low decks, porch or deck covers, fences, finish work, nonbearing interior walls, siding, insulation, masonry, gutters, doors/windows, roofing, membrane-covered structures, and like-material repairs, subject to the stated limitations.
accessory structure exemption area: < 200 square feet (Must also be nonhabitable, detached, one-story, and less than 15 feet from floor to average roof height.) · accessory structure exemption height: < 15 feet (Applies to the floor-to-average-roof-height measurement.) · deck permit threshold: > 30 inches above adjacent grade (Decks not more than 30 inches above adjacent grade are listed as exempt.)
“A building permit is required to construct, enlarge, alter, repair, or move a residential building or structure.”
About Oregon residential building permits ↗Re-checked Sep 24, 2026
Owner-builder exemptionAvailable (with conditions)
Owner-built single-family dwellings and adjacent outbuildings in Harney County where the owner intends to occupy the structures and constructs the structural components personally or with unpaid friends or relatives.
- The owner is the title owner or contract purchaser shown on the last available complete assessment roll and must not have used the exemption during the preceding five years.
- The dwelling must be a single-family residence with adjacent auxiliary structures whose structural components are constructed entirely by the owner or by the owner with unpaid friends and relatives.
- The exemption is limited to structural-code requirements for ceiling heights, room sizes, and maintenance of specific temperature levels.
- The exemption applies to new construction, renovation, remodeling, or alteration of an owner-built dwelling or outbuilding.
- A building permit is still issued and must note whether the structure complies with the exempted requirements.
- If the structure does not comply, the owner-builder must file a copy of the permit with the county clerk for permanent deed recording and provide a sufficient property description.
- A residential construction permit applicant who is an owner and not licensed with the Construction Contractors Board must sign the required property-owner statement before the permit can be issued.
- The homeowner statement requires owner occupancy, licensed subcontractors where applicable, and makes the permit non-transferable.
prior exemption use restriction: >= 5 years (Owner must not have taken advantage of the exemption during the five years before applying.) · exempted structural-code subjects: ceiling heights, room sizes, and maintenance of specific temperature levels (No broader structural-code exemption is stated.)
“Owner-built dwellings and outbuildings shall be exempt from any requirements of the structural code for ceiling heights, room sizes and the maintenance of specific temperature levels in those structures. The exemption shall apply to the new construction, renovation, remodeling or alteration of an owner-built dwelling or outbuilding.”
2023 Oregon Residential Specialty Code — Owner-built dwellings ↗Re-checked Sep 24, 2026
One more reviewed finding on this topic
- Available (with conditions) — Owner-built single-family residences and adjacent auxiliary structures in Oregon where the structural components are constructed entirely by the owner intending to occupy the structures, or by the owner with unpaid assistance from friends and relatives.
  “Owner-built dwellings and outbuildings shall be exempt from any requirements of the structural code for ceiling heights, room sizes”
  2023 Oregon Residential Specialty Code - ORS 455.320 reprinted ↗Re-checked Sep 12, 2026
Building code adoptedAdopted (with conditions)
Statewide Oregon Residential Specialty Code requirements applicable in Harney County to covered residential construction, including one- and two-family dwellings and townhouses.
- The Oregon Residential Specialty Code applies to construction, reconstruction, and repair of one- and two-family dwellings and townhouses.
- Administrative provisions were effective and mandatory October 1, 2023.
- Construction provisions were effective October 1, 2023 with a six-month phase-in period and mandatory April 1, 2024.
- The code is based on the 2021 International Residential Code.
- This claim does not establish the separate building-code status of every commercial, industrial, or other occupancy category.
administrative provisions effective date: 2023-10-01 · administrative provisions mandatory date: 2023-10-01 · construction provisions effective date: 2023-10-01 (six-month phase-in period) · construction provisions mandatory date: 2024-04-01
“The division works with building officials, technical committees, advisory boards, and the public to adopt, amend, and interpret the Oregon Residential Specialty Code (ORSC). This code applies to the construction, reconstruction, and repair of one- and two-family dwellings and townhouses. [...] Administrative provisions (Chapter 1): Effective and mandatory Oct. 1, 2023 [...] Construction provisions (Chapters 2 - 44 and appendices): Effective Oct. 1, 2023 with six-month phase-in period Mandatory April 1, 2024 Based on 2021 International Residential Code (IRC)”
Residential Structures Code Program | State of Oregon ↗Re-checked Sep 24, 2026
3 more reviewed findings on this topic
- Adopted (with conditions) — Oregon State Building Code specialty codes administered statewide by the Oregon Building Codes Division.
  “The Building Codes Division adopts, amends, and interprets specialty codes that make up the Oregon State Building Code.”
  Oregon State Building Code ↗Re-checked Sep 12, 2026
- Adopted (with conditions) — Commercial construction, reconstruction, alteration, and repair governed by the Oregon Structural Specialty Code statewide.
  “Construction provisions: [...] Mandatory April 1, 2026”
  Oregon Structural Specialty Code adoption ↗Re-checked Sep 12, 2026
- Adopted (with conditions) — Construction, reconstruction, and repair of one- and two-family dwellings and townhouses governed by the Oregon Residential Specialty Code statewide.
  “2023 Oregon Residential Specialty Code (ORSC) [...] Based on 2021 International Residential Code (IRC)”
  Residential Structures Code Program ↗Re-checked Sep 12, 2026
InspectionsRequired
Residential construction work in Harney County that is subject to an Oregon building permit.
- Final inspection occurs after all work required by the building permit is completed.
- The permit holder or authorized agent must notify the building official when work is ready for inspection.
- The permit holder must provide access to and means for required inspections.
- Work may not proceed beyond each successive inspection point without building-official approval.
- Noncompliant work must be corrected and may not be covered or concealed until authorized.
- The building official may accept reports from approved inspection agencies if their qualifications and reliability satisfy the code.
final inspection timing: after all work required by the building permit is completed
“R109.1.6 Final inspection. Final inspection shall be made after all work required by the building permit is completed.”
2023 Oregon Residential Specialty Code — Chapter 1 ↗Re-checked Sep 24, 2026
Certificate of occupancyLimited
Occupancy and changes in character, use, or occupancy of residential buildings and structures in Harney County subject to the Oregon Residential Specialty Code.
- A certificate of occupancy is required before use or occupancy in whole or in part, or before a change in existing character, use, or occupancy.
- Certificates of occupancy are not required for work exempt from permits under Section R105.2.
- Certificates of occupancy are not required for accessory buildings or structures.
- Before occupancy of a new residential dwelling or townhouse, the building official must issue a certificate of occupancy unless a temporary certificate is issued.
- Before issuance, the general contractor or owner issued the structural permit must provide contact and relevant license information for the general contractor and electrical, HVAC, and plumbing contractors who performed work.
- A certificate or temporary certificate may be revoked in writing when the dwelling or townhouse violates applicable law posing a threat to health and safety.
- A temporary certificate may be issued before all permitted work is complete if the occupied portion is safe, for a period set by the building official.
temporary certificate validity: period set by the building official (Applies when a temporary certificate is issued before completion of all work.)
“A building or structure shall not be used or occupied in whole or in part, and a change in existing character or use, or a change of occupancy of a building or structure or portion thereof shall not be made, until the building official has issued a certificate of occupancy for such change in character, use or occupancy.”
2023 Oregon Residential Specialty Code — Certificate of Occupancy provisions ↗Re-checked Sep 24, 2026
Zoning districtsPublished (with conditions)
Statewide Oregon zoning data published by the Department of Land Conservation and Development; the data represents local zoning and does not itself replace local zoning ordinances or maps.
- The source identifies the dataset as Statewide Zoning - 2023.
- The source provides downloads through GEOHub and a GIS service.
- Local governments remain the relevant authorities for parcel-level zoning determinations and ordinance administration.
dataset year: 2023
“Statewide Zoning - 2023 Downloads available from GEOHub Service”
Maps, Data and Tools ↗Re-checked Sep 12, 2026
Minimum lot sizeSpecified
Lots or parcels in Oregon resource-land zones covered by ORS 215.780: exclusive farm use land and designated forestland.
- The stated standards apply except as provided in ORS 215.780(2).
- A county may adopt a lower minimum lot or parcel size in specified circumstances if it demonstrates compliance to the Land Conservation and Development Commission or satisfies one of the statutory exceptions.
- The statute states that a county with an acknowledged smaller minimum lot or parcel size described in ORS 215.780(5) need not comply with subsection (2).
minimum lot or parcel size for exclusive farm use land not designated rangeland: >= 80 acres (Subject to ORS 215.780(2) and (5).) · minimum lot or parcel size for exclusive farm use land designated rangeland: >= 160 acres (Subject to ORS 215.780(2) and (5).) · minimum lot or parcel size for designated forestland: >= 80 acres (Subject to ORS 215.780(2) and (5).)
“Except as provided in subsection (2) of this section, the following minimum lot or parcel sizes apply to all counties: (a) For land zoned for exclusive farm use and not designated rangeland, at least 80 acres; (b) For land zoned for exclusive farm use and designated rangeland, at least 160 acres; and (c) For land designated forestland, at least 80 acres.”
Oregon Revised Statutes, Chapter 215 ↗Re-checked Sep 12, 2026
Manufactured homesAllowed (with conditions)
Occupancy of a manufactured dwelling on private land in Oregon with the landowner's consent.
- The lot, tract, or parcel must have adequate area for safe, approved water supply and sewage disposal facilities.
- The occupancy must not conflict with ORS 446.310(9).
- The person must comply with all applicable state or local sanitation, water, plumbing, electrical, and sewerage-installation standards.
“A person may occupy a manufactured dwelling or a camping vehicle on private land with the consent of the owner”
Oregon Revised Statutes, ORS 446.125 ↗Re-checked Sep 12, 2026
Accessory dwellingsLimited
Accessory dwelling units in areas within an urban growth boundary zoned for detached single-unit dwellings in a city with population greater than 2,500 or a county with population greater than 15,000.
- The local government must allow at least one accessory dwelling unit for each detached single-unit dwelling.
- Local regulations may address siting and design but may not include owner-occupancy requirements for the primary or accessory structure or requirements to construct additional off-street parking.
- Local governments may regulate vacation occupancies to require owner-occupancy or off-street parking.
city population threshold: > 2500 persons · county population threshold: > 15000 persons · minimum ADUs per detached single-unit dwelling: >= 1 unit
“A city with a population greater than 2,500 or a county with a population greater than 15,000 shall allow”
Oregon Revised Statutes, ORS 197A.425 ↗Re-checked Sep 12, 2026
Septic permitRequired
Domestic septic systems in Harney County, including new construction and alterations or repairs of existing septic systems.
- A construction permit is for new construction and alterations or repairs of existing septic systems.
- Construction permits are valid for up to one year.
- A site evaluation is required for an undeveloped site that has never been evaluated for septic approval and may be required when replacing an old system at a different location.
- An affirmative Land Use Compatibility Statement is required before DEQ issues a construction permit for new construction and alterations of existing septic systems.
- DEQ Onsite Program fees increase 33%, effective July 1, 2026; the latest fees should be confirmed with the local onsite program office.
construction permit validity: <= 1 year maximum
“Construction permit: This includes permits for new construction and for alterations and repairs of existing septic systems. They are valid for up to one year and, in many areas of the state, are issued by a local agent of DEQ, typically a county.”
Housing and Onsite Wastewater Management ↗Re-checked Sep 24, 2026
Septic inspectionLimited
Pressure distribution, sand filter, and alternative treatment technology septic systems in Harney County subject to Oregon onsite wastewater rules.
- Each listed system type has a list of required inspections.
- The onsite agent may waive certain inspections.
- The rules are administered by DEQ and its contract counties.
- The cited rules update is effective January 1, 2026.
“Pressure distribution, sand filter, and alternative treatment technology (ATT) systems each have a list of required inspections. The agent may still elect to waive certain inspections.”
Onsite Wastewater (Septic) Rules Update ↗Re-checked Sep 24, 2026
Off-grid sanitationLimited
Use of composting toilets and related graywater systems in Oregon.
- A composting toilet does not eliminate all household water; plumbing fixtures still need connection to an approved septic system.
- If used with a graywater reuse system, both the graywater reuse system and septic system require a DEQ permit.
- The graywater reuse system must be offline during wet-weather months or when discharges could create a public nuisance.
- Material removed from a composting toilet must be buried under 12 inches of soil.
- Buildings within a sewer district still need a sewer connection.
burial depth for removed composting-toilet material: 12 inches · maximum reduced drainfield capacity mentioned by DEQ: two-thirds (The source says the drainfield may be approved for a smaller capacity, as much as two-thirds the size.)
“Composting toilets don't eliminate all water generated in a home and therefore you will need to be hooked up to an approved wastewater treatment system.”
What do I do with the finished material? ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Allowed (with conditions) — Onsite wastewater or septic sanitation for properties in Harney County where public sanitary sewer is not legally and physically available.
  “In areas where a municipal sewer system is not available, development must use onsite wastewater treatment systems, or septic systems, for sanitary disposal.”
  Housing and Onsite Wastewater Management ↗Re-checked Sep 24, 2026
Well permitRequired
Water wells and groundwater use in Harney County, Oregon.
- A groundwater application is required to use water from a well, subject to applicable statutory exemptions.
- For a landowner constructing, altering, converting, or abandoning a water supply well, the landowner permit and bond must be obtained before work begins unless the landowner is a licensed and bonded Water Supply Well Constructor.
- Only the owner of record, an immediate family member of the owner of record, or a full-time employee of the owner of record whose main duties are not well construction may operate a drilling machine under a landowner permit.
- A landowner permit expires six months after issuance.
- A water well report must be submitted within 30 days after permit expiration or well completion, whichever occurs first.
- The Department may deny a landowner permit for a health threat, health hazard, contamination source, or groundwater waste.
landowner permit bond: 10000 USD · landowner permit fee: 550 USD · landowner permit duration: 6 months · water well report deadline: 30 days (After permit expiration or well completion, whichever occurs first.)
“The Water Resources Commission requires a permit, permit fee, and bond or irrevocable letter of credit, for each water supply well constructed, altered, converted, or abandoned by a landowner, unless the landowner is a licensed and bonded Water Supply Well Constructor.”
Apply for a Water Use Permit ↗Re-checked Sep 24, 2026
Mandatory utility hookupSewer (with conditions)
A building located within an Oregon sewer district, including a building using a composting toilet.
- The source specifically addresses buildings within a sewer district.
- A composting toilet does not eliminate the sewer-connection requirement.
“What if my building is within a sewer district? Your building will still need a sewer connection.”
What do I do with the finished material? ↗Re-checked Sep 12, 2026
Agricultural exemptionAvailable (with conditions)
Qualifying agricultural buildings, agricultural grading, equine facilities and dog-training facilities under Oregon structural-code law.
- The exemption is only from the Oregon Structural Specialty Code.
- Electrical, plumbing and mechanical work remains subject to permits and the applicable specialty codes.
- An agricultural building must be located on a farm or forest operation and used for the statutory agricultural, forestry, horticultural, animal-husbandry or related purposes.
- An agricultural building does not include a dwelling; a structure used for a purpose other than growing plants in which 10 or more persons are present at any one time; a structure regulated by the State Fire Marshal; a structure used by the public; or a structure subject to the National Flood Insurance Act provisions identified in ORS 455.315.
- Incorporated cities may regulate agricultural buildings, equine facilities and dog-training facilities within their boundaries.
- Additional uses in an agricultural building must be incidental and accessory, personal to the farm owner and immediate family or household, and pose no greater hazard than the listed agricultural uses.
maximum persons present for qualifying non-growing-plants agricultural structure: < 10 persons (Structures with 10 or more persons present at one time are excluded.)
“The provisions of this chapter do not authorize the application of a state structural specialty code to any agricultural building, agricultural grading, equine facility or dog training facility.”
Oregon Revised Statutes, Chapter 455 ↗Re-checked Sep 12, 2026
Permit feesVariable (with conditions)
Oregon state building-code permit fees and fee methodologies, including residential and commercial electrical, plumbing, mechanical, and structural work.
- Residential electrical new-construction fees are calculated by square footage or, for alterations and repairs, by services, feeders, and branch circuits.
- Residential plumbing new-construction fees are based on kitchens and bathrooms; alteration and repair fees are based on fixtures.
- Residential mechanical fees are calculated per appliance or equipment.
- Residential structural new-construction fees use the ICC Valuation Table current as of April 1 of each year; alteration and repair fees use fair market value as determined by the building official.
- Commercial plumbing fees are based on fixtures; commercial mechanical fees use equipment valuation and installation costs; commercial electrical fees use services, feeders, and branch circuits.
- Commercial structural new-construction valuation is the greater of the ICC Valuation Table current as of April 1 of each year or the applicant's stated value; otherwise the building official determines valuation when the construction or occupancy type does not fit the table.
- Local fee schedules and additional departmental fees may also apply.
residential structural valuation table date: April 1 of each year · commercial structural valuation: greater of ICC Valuation Table or applicant-stated value (when construction is new/addition) · alteration or repair valuation: fair market value determined by building official (residential structural work)
“Fees calculated per appliance/equipment. [...] Fees based on fair market value as determined by the building official.”
Valuation and fee requirements by work/record type ↗Re-checked Sep 12, 2026
Permit processPublished (with conditions)
Online homeowner building-permit applications through Oregon ePermitting in participating cities and counties.
- Participation by cities or counties is voluntary.
- Each participating city or county determines which permits are available for online sale.
- The applicant creates an account, downloads the homeowner acknowledgement form, searches for the work-site address, enters owner contact details, uploads the form, and enters work details.
- After submission, the local city or county contacts the applicant when fees are ready to be paid and when the permit has been issued.
- Applicants may track status, pay fees, upload documents, schedule inspections, and review inspection results after submission.
“Participation by cities or counties is voluntary and each participating city or county determines which permits are available for sale online.”
Online building permit application process for homeowners ↗Re-checked Sep 12, 2026
county zoning authorityGeneral
Oregon counties adopting and revising comprehensive plans, zoning, subdivision, and other land-use ordinances applicable to county land, including unincorporated areas.
- The statutory text states an exception for ORS 527.722.
- Plans and related ordinances may be adopted and revised part by part or by geographic area.
- Zoning, subdivision, and other ordinances or regulations must be designed to implement the adopted county comprehensive plan.
- Before a county zoning ordinance has legal effect, the governing body or planning commission must conduct one or more public hearings and publish 10 days' advance public notice; additional notice requirements apply to certain zone changes under ORS 215.223.
“Except as provided in ORS 527.722, the county governing body shall adopt and may from time to time revise a comprehensive plan and zoning, subdivision and other ordinances applicable to all of the land in the county. The plan and related ordinances may be adopted and revised part by part or by geographic area.”
Oregon Revised Statutes, Chapter 215 — County Planning; Zoning; Housing Codes ↗Re-checked Sep 21, 2026
county building authorityGeneral
Oregon counties administering and enforcing building inspection programs, including issuance and enforcement of building permits for residential construction in areas outside incorporated cities.
- A county building inspection program is subject to the state building code and the statutory building-inspection-program framework.
- If a county does not notify the director, or notifies the director that it will not administer and enforce a building inspection program, the director must arrange administration and enforcement through a municipality, other person, state employees, or state agencies; permit and other fees arising therefrom are paid into the Consumer and Business Services Fund.
- A building inspection program is administered for four-year periods under ORS 455.150; the governing body must provide required notices to the Director of the Department of Consumer and Business Services.
- The program must specify cooperation with the State Fire Marshal or designee and how a uniform fire code will be considered in design and construction review.
- The cited archive is the 2015 Oregon Revised Statutes edition; the current official ORS 455 page was identified but returned a 403 error during retrieval.
“If a city does not notify the director, or notifies the director that it will not administer the building inspection program, the county or counties in which the city is located shall administer and enforce the county program within the city in the same manner as the program is administered and enforced outside the city, except as provided by subsection (6) of this section.”
Oregon Revised Statutes, Chapter 455 — Building Code ↗Re-checked Sep 21, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

Minimum dwelling size — Minimum floor area for dwellings under Harney County zoning regulations in the unincorporated area.
Tiny homes — Occupancy of tiny homes or tiny homes on wheels in unincorporated Harney 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 Harney County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Oregon’s water agency.

Over-appropriated / declining

The aquifer here is over-appropriated and declining. A domestic well is usually still permit-exempt, but long-term supply is a genuine risk.

Household wellExempt — no permit or water right

Single or group domestic groundwater use up to 15,000 gpd is exempt from permitting, but the exemption can be limited inside designated Critical Groundwater Areas.

Limit: 15,000 gpd domestic (plus stockwater and ≤0.5 acre lawn/garden) under ORS 537.545

Oregon Water Resources Department — Exempt Water Uses ↗

Harney Basin Critical Groundwater Area / SWMPApartial of county
Harney Valley classified groundwater-limited (2016) and designated a Critical Groundwater Area (Dec 2025) with Serious-Water-Management-Problem-Area rules (2026); water levels have fallen >100 ft (up to ~8 ft/yr). New non-exempt appropriations curtailed; permit-exempt domestic wells remain exempt.
Oregon Water Resources Department — Groundwater Administrative Areas ↗

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 Oregon state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Harney County, Oregon

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

Harney County scores 41/100 on the Bolthole Index, a marginal county profile. Its strengths: deep seclusion — about 160 people within 15 miles and manageable long-term carry cost. Watch-outs: weak self-sufficiency basics: only 12.6″ of rain a year, in severe drought 41.2% of years and elevated current hazard exposure.

Do you need a building permit in Harney County, Oregon?

Harney County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Harney County Onsite Sanitation (contract agent administering the Oregon DEQ onsite program). 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 Harney County?

Living in an RV on your own land in Harney County is limited to specific cases: Recreational-vehicle occupancy and residential use in unincorporated Harney County. An RV may not be used as a permanent residential structure unless it is located in a permitted RV Park or otherwise receives land-use approval. An RV may be temporarily inhabited during construction of an approved dwelling only with written authorization from the Planning Director. Confirm with the county before relying on it.

How much does land cost in Harney County, Oregon?

Land in Harney County runs about $1,268 per acre, based on the latest county data.

What is the water situation in Harney County?

Harney County gets about 12.6" of rain a year, with severe drought in roughly 41.2% of years. On water rights, Harney County lies in the Harney Basin Critical Groundwater Area / SWMPA — Harney Valley classified groundwater-limited (2016) and designated a Critical Groundwater Area (Dec 2025) with Serious-Water-Management-Problem-Area rules (2026); water levels have fallen >100 ft (up to ~8 ft/yr). New non-exempt appropriations curtailed; permit-exempt domestic wells remain exempt..

How remote is Harney County?

A typical private-land location has about 160 people within 15 miles and 158,960 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Building permits, zoning and land rules in Harney County, Oregon

At a glance

Who to call

Do you need a building permit in Harney County, Oregon?

Who handles Harney County building permits and inspections?

Does Harney County have zoning?

How do septic permits work in Harney County?

Can you live in an RV or tiny home in Harney County?

What are the steps to build a home in Harney County?

What should you check before buying land in Harney County?

Watch-outs

Sources

Harney County in Oregon

How Harney County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Harney County

Harney County rules

Oregon rules that apply here

Still unanswered

Water rights & wells in Harney County

Living off-grid in Harney County, Oregon

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

Do you need a building permit in Harney County, Oregon?

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

How much does land cost in Harney County, Oregon?

What is the water situation in Harney County?

How remote is Harney County?

How Harney compares in Oregon