Bolthole Index

Wasco County, Oregon

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

62Index Score / 100
#11 of 36 in Oregon

Unincorporated Wasco County, Oregon requires building permits for regulated construction, and county zoning applies outside incorporated communities.12 North Central Public Health District handles septic permitting as Oregon DEQ's local agent for Wasco County.3 Start with the Planning Division to identify the parcel's zone, then coordinate building and septic approvals before construction.4

At a glance

Building permit
Required for regulated construction15
Zoning
County zoning applies outside incorporated communities62
Septic
Permitted by North Central Public Health District73
RV living
Allowed only in qualifying circumstances; parcel-specific rules still apply8
Tiny home
Occupancy rules were not confirmed; ask the Planning Division2
Owner-builder
A narrow structural-code exemption exists, but a permit is still required9
Private well
A landowner who constructs a well needs a state permit and bond10

Who to call

Building permits

Wasco County Building Codes Services

Building permits, plan review and inspections

541-506-2650

[email protected]

2705 East 2nd St., The Dalles, OR 97058

Online permits →

Planning & zoning

Wasco County Planning Division

Zoning, land-use permits and parcel-specific development questions

541-506-2560

[email protected]

2705 E 2nd St, The Dalles, OR 97058

Septic permits

North Central Public Health District

Septic site evaluations, permits, authorizations and inspections

(541)506-2603

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 Wasco County, Oregon?

Yes. Wasco County requires a separate permit for each regulated building or structure before construction, enlargement, alteration, repair, moving, improvement or conversion, unless law provides an exception.5 The Oregon Residential Specialty Code applies to the construction, reconstruction and repair of one- and two-family dwellings and townhouses.11

Wasco County Building Codes Services reviews applications and issues building permits; its official page also directs licensed contractors to Oregon ePermitting for online applications.12 Permit and plan-review fees vary, and the Building Official uses the total value of the construction work to calculate them.13 A new residential dwelling or townhouse generally cannot be occupied until the building official issues a certificate of occupancy.14

Who issues building and land-use permits in Wasco County?

Wasco County Building Codes Services is the contact for building permits, plan review and inspections; the office is at 2705 East 2nd St. in The Dalles and uses Oregon ePermitting for online contractor applications.12 Wasco County Planning Division handles zoning, land-use permits and parcel-specific development questions from its office at 2705 E 2nd St. in The Dalles.15

Call Planning before commissioning plans because the parcel's zoning and any Columbia River Gorge National Scenic Area overlay determine which land-use criteria apply.4 Building applications, plans, specifications and supporting data are reviewed by the Building Official, and other county departments may review the project for laws within their jurisdiction.5 A building permit is issued only after the proposed work complies with the building code and other pertinent laws and the required fees are paid.5

Does Wasco County have zoning?

Yes. Wasco County's land-use ordinances and zoning maps regulate new development outside incorporated communities.2 Incorporated cities can have their own rules, while property in the Columbia River Gorge National Scenic Area is subject to the applicable scenic-area standards.4 Use the county map to identify the parcel's zone, then read the corresponding Land Use and Development Ordinance criteria.4

Do not assume that one rural standard applies countywide. Agricultural land in the Scenic Area Special Management Area can require at least 40 contiguous acres for a new dwelling or related major structure.16 In zoning districts covered by the irrigation-ditch rule, structures generally must be at least 50 feet from the centerline of a ditch or pipeline that continues past the parcel when no easement exists.17 Ask the Planning Division to confirm the zone, overlays, allowed dwelling type, setbacks and any floodplain review for the specific tax lot.15

How do septic permits work in Wasco County?

North Central Public Health District administers onsite wastewater permitting in Wasco County as Oregon DEQ's local agent.3 The district processes septic site evaluations, permits and authorizations through Oregon ePermitting and provides a phone option for applicants who cannot use the online system.18 A permitted system must be designed and constructed under Oregon DEQ rules and local district requirements, followed by inspection and approval.19

Only 6.8% of mapped soils are rated without severe limitations for a conventional septic drain field, so make a site evaluation an early purchase contingency rather than assuming a standard system will work.20 A composting toilet does not remove the wastewater question: a home installation requires a plumbing permit, and other plumbing fixtures still need an approved wastewater treatment connection.21 A building inside a sewer district still needs a sewer connection even if it uses a composting toilet.22

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

Oregon protects RV occupancy in limited circumstances, including qualifying park settings with lawful utility connections and temporary placement after a dwelling becomes uninhabitable in a natural disaster.8 That rule does not create unrestricted long-term RV living on every private parcel, and local governments may impose additional conditions.8

Wasco County's rule for ordinary temporary camping on private land could not be confirmed, so ask the Planning Division about the parcel, proposed duration and utility connections before moving an RV onto the land.15 Wasco County's occupancy rule for tiny homes, including a tiny home on wheels used as a dwelling, also could not be confirmed; zoning still regulates new development outside incorporated communities.2 A manufactured dwelling may be occupied on private Oregon land with the owner's consent only when water, sewage and other applicable state and local standards are satisfied.23

How do you build a home in Wasco County?

  1. Ask the Wasco County Planning Division to identify the zone and applicable ordinance, including any Columbia River Gorge National Scenic Area standards.4
  2. Confirm legal access and ask Planning which road authority must approve the approach; the county-road approach requirement could not be confirmed.15
  3. Arrange water and wastewater early; North Central Public Health District handles septic site evaluations and permits in Wasco County.3
  4. Submit building plans to Wasco County Building Codes Services and use Oregon ePermitting where the office makes online service available.12
  5. Pay the calculated fees and wait for permit issuance before starting regulated work.5
  6. Build to the approved plans and obtain authorization before making changes.5
  7. Complete required inspections and obtain a certificate of occupancy before occupying a new dwelling.14

What should you check before buying land in Wasco County?

Confirm zoning first because county rules apply outside incorporated communities, and the Columbia River Gorge National Scenic Area has separate standards.4 Make septic feasibility a contract contingency because only 6.8% of mapped soils lack severe limitations for a conventional drain field.20 Confirm the legal water source and well budget; an owner who personally constructs, alters or abandons a water-supply well needs a state permit and bond unless licensed and bonded as a Water Supply Well Constructor.10

Verify recorded access, the responsible road authority and any approach approval with the Planning Division before closing.15 Ask the same office whether floodplain review, wildfire redevelopment standards, scenic review or irrigation easements affect the tax lot.15 For carrying costs, Wasco County's median property-tax bill is about $2,784 per year, but the parcel's actual assessment can differ.24

Watch-outs

  • A rural Wasco County address does not mean unrestricted land: county zoning applies outside incorporated communities, and scenic-area rules may add another layer.4
  • A qualifying agricultural building can be exempt from structural-code requirements, but electrical, plumbing and mechanical permits still apply, and a dwelling does not qualify as an agricultural building.25
  • Wasco County's private-land camping and tiny-home occupancy rules could not be confirmed; ask the Planning Division before purchase or occupancy.15

Sources

  1. Wasco County Building Codes Services (2026 county census)
  2. Zoning & Permits, quoted and re-checked
  3. Septic Systems — North Central Public Health, quoted and re-checked
  4. Zoning & Permits, quoted and re-checked
  5. Building Codes Services, quoted and re-checked
  6. Zoning & Permits (2026 county census)
  7. North Central Public Health District - Septic Systems (2026 county census)
  8. Oregon Revised Statutes, ORS 197.493, quoted and re-checked
  9. 2023 Oregon Residential Specialty Code — Chapter 1, quoted and re-checked
  10. Landowner’s Well Permit Application Form, quoted and re-checked
  11. Oregon State Building Code, quoted and re-checked
  12. Wasco County Building Codes Services (wascocountyor.gov)
  13. Ordinance 19-002: Administration of the Building Inspection Program, quoted and re-checked
  14. 2023 Oregon Residential Specialty Code — Chapter 1, quoted and re-checked
  15. Wasco County Planning Division (wascocountyor.gov)
  16. Chapter 3 – Basic Provisions, A-1 Zone, Special Management Area, quoted and re-checked
  17. Chapter 3 – Basic Provisions, quoted and re-checked
  18. North Central Public Health District (ncphd.org)
  19. Septic Systems — North Central Public Health, quoted and re-checked
  20. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  21. Composting Toilets, quoted and re-checked
  22. Composting Toilets, quoted and re-checked
  23. Oregon Revised Statutes, ORS 446.125 (Oregon statewide rule), quoted and re-checked
  24. Median property tax bill: Bolthole Index county data
  25. Statewide Code Interpretation No. 13-03: Agriculture/Forestry/Additional Uses, quoted and re-checked

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.

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County locator

Wasco County in Oregon

62
County map
Wasco County highlighted among the Oregon counties · colored by Index score

How Wasco County scores

Seclusion89100% ev.
Self-Sufficiency4497% ev.
Admin Boringness42100% ev.
Durability37100% ev.
Property Autonomy72100% ev.
Carry Cost73100% ev.

Evidence strength: 99%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$407kTypical home
0.8%Property tax
$1,809Land / acre
20.3"Annual rain
22.1% of yrsSevere drought
6.7 / yr (+5.4)Mid-century 100°F days
35 daysMid-century dry spell
0.94" (+6.5%)Mid-century 1-day rain
1.23×Wildfire change factor
100%Forward climate coverage
$1,116Home insurance / yr
3.2% / yrInsurance growth
0.92%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
155People within 30 min
300,782People within 2 hr
2,109Radius comparison (15 mi)
11.1People / sq mi
20.4%Federal land
46.8%Land at 15% slope or less
6.8%Septic soil without severe limits
60,046 acWorkable land screen
29%Wooded land
56.4 tonsBiomass / forest ac
48.7°FAvg temp

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Answers from the rulebook for Wasco County

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

Wasco County rules

  • County-wide zoningPresent (with conditions)

    New development in unincorporated Wasco County outside incorporated communities, including areas governed by the county land use and development ordinances and zoning maps.

    • The county page states that the county ordinances and zoning maps apply outside incorporated communities.
    • The Columbia River Gorge National Scenic Area has separate applicable management-plan and ordinance materials.
    • Applicable criteria must be checked in the relevant Land Use and Development Ordinance after identifying the property zone.
    “These two plans provide the basis for the Wasco County land use and development ordinances (LUDOs) and zoning maps that guide and regulate new development in Wasco County at the local level, outside of the incorporated communities.”
  • Zoning districtsPublished (with conditions)

    Zoning districts and applicable land-use rules for new development outside incorporated Wasco County communities.

    • The county zoning information applies outside incorporated communities; incorporated municipalities may have their own rules.
    • Users must locate the parcel's zone on the county online map tool and then consult the applicable Land Use and Development Ordinance.
    • Properties in the Columbia River Gorge National Scenic Area are subject to the applicable National Scenic Area rules.
    “Once you have located your zone, you can look up relevant criteria in one of the Land Use and Development Ordinances.”
  • Minimum lot sizeDistrict specific (with conditions)

    New dwellings and related major structures on agricultural lands in the Columbia River Gorge National Scenic Area Special Management Area.

    • The 40-contiguous-acre minimum applies to the Special Management Area agricultural lands provision; other zoning districts may have different standards.
    • Chapter 14 Scenic Area Review and other applicable standards may also apply.

    minimum parcel area: >= 40 acres

    “No new dwellings or other related major structures shall be permitted on parcels of land less than 40 contiguous acres;”
  • SetbacksDistrict specific (with conditions)

    Dwellings and structures in Wasco County zoning districts subject to the irrigation-ditch setback provision.

    • Structures must be outside any irrigation or water-district easement.
    • Substandard setbacks require prior approval from the affected irrigation district.
    • The setback does not apply to fences and signs.
    • If the irrigation ditch is a stream, Chapter 14 natural-resource provisions apply.

    minimum setback from irrigation ditch or pipeline centerline: >= 50 feet (Where no easement exists and the ditch or pipeline continues past the subject parcel to provide water to other property owners.)

    “In the absence of an easement, all dwellings and structures shall be located a minimum of 50 feet from the centerline of irrigation ditches and pipelines which continue past the subject parcel to provide water to other property owners.”
  • Building heightDistrict specific (with conditions)

    All structures in the Wasco County A-1 Zone, subject to Columbia River Gorge National Scenic Area restrictions where applicable.

    • The maximum may be further restricted under Chapter 14 Scenic Area Review.

    maximum building height: <= 35 feet (Unless further restricted in accordance with Chapter 14 Scenic Area Review.)

    “Height - Maximum height for all structures shall be thirty-five (35) feet unless further restricted in accordance with Chapter 14 - Scenic Area Review.”
  • Who permits septicLocal

    Onsite wastewater regulation in the Wasco County portion of the North Central Public Health District service area.

    • NCPHD acts as the local agent for Oregon DEQ.
    • The program covers Wasco and Sherman Counties.
    “in Wasco and Sherman Counties as the local agent”
  • Septic inspectionRequired

    Permitted onsite wastewater treatment systems in the Wasco County portion of the North Central Public Health District service area.

    • The system must be designed and constructed under Oregon DEQ rules and local NCPHD requirements.
    • Inspection and approval occur after the permit is issued.
    • NCPHD schedules a precover inspection after receiving the Final Inspection Request and Notice, as-built drawing, and materials list.
    “inspected and approved by an Environmental Health Specialist”
  • Permit feesVariable (with conditions)

    Wasco County building-code permits, inspections, re-inspections, plan checks, site plan reviews, copy costs, and related administrative fees.

    • Fees are set and adopted from time to time by resolution of the Wasco County Board of Commissioners.
    • Fees must comply with OAR Chapter 918-020.
    • The Building Official determines the valuation used to compute building permit and plan review fees.
    • Valuation includes all construction work for the project, including finish work, painting, roofing, electrical, plumbing, heating, air conditioning, elevators, fire extinguishing systems, and other permanent equipment.

    fee-setting mechanism: Resolution of the Wasco County Board of Commissioners · permit and plan-review valuation: total value of all construction work for the project (Includes finish work, painting, roofing, electrical, plumbing, heating, air conditioning, elevators, fire extinguishing systems, and other permanent equipment.)

    “Fees for permits, inspections, re-inspection, plan checks, site plan review, copy costs, and other fees deemed reasonable in order to administer the Building Code”
  • Permit processPublished (with conditions)

    Building permits administered under Wasco County Ordinance 19-002.

    • Except as otherwise provided by law, a separate permit is required for each regulated building or structure before erection, construction, enlargement, alteration, repair, moving, improvement, or conversion.
    • Applications, plans, specifications, computations, and other data are reviewed by the Building Official; other jurisdictional departments may review for compliance with laws under their jurisdiction.
    • A permit is issued only when the proposed work conforms to the Building Code and pertinent laws and ordinances and the fees have been paid.
    • Approved plans may not be changed, modified, or altered without Building Official authorization.
    • A partial permit may be issued before the entire plans and specifications are submitted or approved if adequate information and detailed statements have been filed; a partial permit does not assure that the permit for the entire building or structure will be granted.
    • The ordinance took effect July 1, 2019.

    initial appeal decision time: 48 hours (Normally rendered within 48 hours of receipt of the appeal.)

    “no building or structure regulated by the Building Code shall be erected, constructed, enlarged, altered, repaired, moved, improved, or converted unless a separate permit”
  • Building permitRequired

    Wasco County Building Codes Services administers building permits under Ordinance 19-002; residential construction requires permits under the Oregon Residential Specialty Code.

    Wasco County Building Codes Services ↗Scouted from the county site, not yet independently re-checked

Oregon rules that apply here

  • Owner-builder exemptionConditional

    Owner-built single-family dwellings and adjacent auxiliary structures in Wasco County whose structural components are constructed entirely by the owner intending to occupy the structures, or by the owner with unpaid assistance from friends and relatives.

    • The owner must be the title owner or contract purchaser shown on the last available complete assessment roll.
    • The owner must not have used the exemption during the five years before applying.
    • The exemption applies only 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 owner-built dwelling or outbuilding complies with the exempted requirements.
    • If the dwelling or other structure does not comply, the owner-builder must file a copy of the building permit with the county clerk for permanent deed records and provide a sufficient property description.
    • Noncompliance with the recording requirement does not affect conveyance of an interest in the property.

    prior exemption lookback: 5 years (Owner must not have taken advantage of the exemption during the five years before applying.)

    “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.”
    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”
  • Building code adoptedAdopted (with conditions)

    Statewide Oregon building-code requirements applicable in Wasco County, including the Oregon Residential Specialty Code for 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.

    administrative provisions effective 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.”
    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.”
    • Adopted (with conditions) — Commercial construction, reconstruction, alteration, and repair governed by the Oregon Structural Specialty Code statewide.
      “Construction provisions: [...] Mandatory April 1, 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)”
  • Certificate of occupancyRequired

    Use or occupancy of residential buildings and changes in character, use, or occupancy governed by the Oregon Residential Specialty Code in Wasco County.

    • A certificate of occupancy is required before use or occupancy, or a change in existing character, use, or occupancy, as specified by R110.1.
    • 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.
    • An existing building may be approved for a different occupancy group without full conformity if the new or proposed use is not more hazardous based on life and fire risk, subject to building-official approval.
    • A temporary certificate of occupancy may be issued before completion if the portion or portions can be occupied safely, with a time period set by the building official.
    “Prior to occupancy of a new residential dwelling or townhouse the building official must issue a certificate of occupancy in the form and format established by the Division, unless a temporary certificate of occupancy is issued by the building official.”
  • Living in an RVLimited

    One residential-use recreational vehicle on a lot or parcel in an Oregon rural area, when a county elects to allow the use under ORS 215.490.

    • The property must not be within an urban reserve.
    • An owner-occupied single-unit dwelling must be sited on the property as the owner's primary residence.
    • There must be no other dwelling units on the property, and no portion of the single-unit dwelling may be rented as a residential tenancy.
    • The recreational vehicle space or vehicle may not be used for vacation occupancy or other short-term uses.
    • The recreational vehicle must be owned or leased by the tenant.
    • The property owner must provide essential services.
    • A county may require registration, a written residential rental agreement, payment limits, and reasonable appearance, repair, inspection, or siting standards.
    “A county may allow an owner of a lot or parcel in a rural area to site on the property one recreational vehicle”
    2 more reviewed findings on this topic
    • Allowed (with conditions) — Placement or occupancy of a recreational vehicle as a residential dwelling in Wasco County when one of the statutory conditions in ORS 197.493(1) is met.
      “197.493 Placement and occupancy of recreational vehicle. (1) A state agency or local government may not prohibit the placement or occupancy of a recreational vehicle, or impose any limit on the length of occupancy of a recreational vehicle as a residential dwelling, solely on the grounds that the occupancy is in a recreational vehicle, if the recreational vehicle is: (a) Allowed under ORS 215.490; (b)(A) Located in a manufactured dwelling park, mobile home park or recreational vehicle park; (B) Occupied as a residential dwelling; and (C) Lawfully connected to water and electrical supply systems and a sewage disposal system; or (c) On a lot or parcel with a manufactured dwelling or single-unit dwelling that is uninhabitable due to damages from a natural disaster, including wildfires, earthquakes, flooding or storms, until no later than the date: (A) The dwelling has been repaired or replaced and an occupancy permit has been issued; (B) The local government makes a determination that the owner of the dwelling is unreasonably delaying in completing repairs or replacing the dwelling; or (C) Five years after the date the dwelling first became uninhabitable. (2) Subsection (1) of this section does not limit the authority of a state agency or local government to impose other special conditions on the placement or occupancy of a recreational vehicle.”
    • Limited — Residential occupancy of a recreational vehicle in Oregon when the vehicle is allowed under ORS 215.490, located in a manufactured dwelling park, mobile home park, or recreational vehicle park and lawfully connected to required services, or placed on a lot with a dwelling made uninhabitable by a natural disaster.
      “A state agency or local government may not prohibit the placement or occupancy of a recreational vehicle”
  • 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”
  • 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”
  • Off-grid sanitationLimited

    Composting toilet systems used as part of a residential sanitation system in Wasco County.

    • A plumbing permit is required to install a composting toilet system in a home.
    • Local building departments issue the required plumbing, mechanical, and electrical permits, subject to jurisdiction-specific administration.
    • A building within a sewer district still needs a sewer connection.
    • Composting toilets do not eliminate all household wastewater; plumbing fixtures must still connect to an approved septic or other wastewater treatment system.
    • For graywater reuse and disposal systems combined with composting toilets, both systems require a DEQ permit, the graywater system must be offline during wet weather or when discharges would create a public nuisance.

    composting-toilet plumbing permit validity: 180 days (may be renewed if needed) · finished compost burial depth: 12 inches of soil

    “A plumbing permit is required to install a composting toilet system in a home.”
    One more reviewed finding on this topic
    • Limited — Use of composting toilets and related graywater systems in Oregon.
      “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.”
  • Well permitLimited

    Construction, alteration, or abandonment of a water-supply well by a landowner on property owned by that landowner in Wasco County.

    • A landowner permit and bond are required 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.
    • The permit must be obtained before work begins.
    • The landowner permit requires a $10,000 bond or irrevocable letter of credit.
    • Permit fee is $550; a $490 start-card fee is due after permit issuance; a $300 groundwater recording fee is due after well completion.
    • The permit is valid for six months from issuance; the bond is typically valid about one year and must be maintained through construction.
    • Work must comply with OAR 690-200 through 690-230.

    permit fee: 550 USD · start card fee: 490 USD (due after permit issuance) · groundwater recording fee: 300 USD (due after well completion) · landowner bond: 10000 USD (or irrevocable letter of credit) · permit validity: 6 months from issuance (may reapply if expired before work is complete)

    “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”
  • Mandatory utility hookupSewer (with conditions)

    Buildings using composting toilets that are located within a sewer district in Wasco County, and wastewater plumbing where municipal sewer is unavailable.

    • A building within a sewer district still requires a sewer connection even if it uses a composting toilet.
    • If no septic system exists, composting toilets do not eliminate all household wastewater; the building must connect to an approved wastewater treatment system.
    • Where municipal sewer is unavailable, development must use an onsite wastewater treatment system or septic system for sanitary disposal.
    “Your building will still need a sewer connection.”
    One more reviewed finding on this topic
    • Sewer (with conditions) — A building located within an Oregon sewer district, including a building using a composting toilet.
      “What if my building is within a sewer district? Your building will still need a sewer connection.”
  • 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.”
    One more reviewed finding on this topic
  • Subdividing landRegulated (with conditions)

    Subdivisions and partitions in Oregon subject to review under ORS 92.044.

    • Before a plat may be made and recorded, the applicant must submit a written application to the city or county having jurisdiction under ORS 92.042.
    • The application must include a tentative plan showing the general design.
    • The tentative plan must be approved before the plat may be considered for approval.
    • Cities and counties must adopt standards and procedures governing submission and approval, including requirements addressing utilities, streets, minimum lot sizes, safety, light and air, overcrowding, transportation, water, sewerage, drainage, education, recreation and other needs.
    • Applicable local zoning ordinances and regulations remain part of plat approval criteria.

    tentative-plan approval before plat consideration: true (Applies to subdivisions or partitions subject to review under ORS 92.044.) · local standards and procedures: required by city or county ordinance or regulation (Jurisdiction is determined under ORS 92.042.)

    “Before a plat of any subdivision or partition subject to review under ORS 92.044 may be made and recorded, the person proposing the subdivision or partition or authorized agent or representative of the person shall make an application in writing to the county or city having jurisdiction under ORS 92.042 for approval of the proposed subdivision or partition in accordance with procedures established by the applicable ordinance or regulation adopted under ORS 92.044.”
  • 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.”
  • 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.”

Still unanswered

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

  • Minimum dwelling size — Minimum dwelling size in unincorporated Wasco County.
  • Lot coverage — Lot coverage in unincorporated Wasco County.
  • Camping on your land — Temporary camping on private land in unincorporated Wasco County.
  • Tiny homes — Tiny-home occupancy, including tiny homes on wheels used as dwellings, in unincorporated Wasco County.
  • Driveway access — Driveway or road approach access to county roads in unincorporated Wasco County.
2 more unanswered
  • Building in a floodplain
  • Short-term rentals

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 Wasco County

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

Closed to new supply

New water supply here generally requires a permit, an offset, or buying an existing right — a household well is not automatic.

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 ↗

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 Wasco County, Oregon

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

Wasco County scores 62/100 on the Bolthole Index, a solid county profile. Its strengths: deep seclusion — about 155 people within a 30-minute drive and manageable long-term carry cost. Watch-outs: elevated current hazard exposure and more administrative friction around building and land use.

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

Wasco County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by North Central Public Health District (Oregon DEQ agent for Wasco and Sherman Counties). 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 Wasco County?

Living in an RV on your own land in Wasco County is limited to specific cases: Statewide rule. One residential-use recreational vehicle on a lot or parcel in an Oregon rural area, when a county elects to allow the use under ORS 215.490. The property must not be within an urban reserve. An owner-occupied single-unit dwelling must be sited on the property as the owner's primary residence. Confirm with the county before relying on it.

How much does land cost in Wasco County, Oregon?

Land in Wasco County runs about $1,809 per acre, based on the latest county data.

What is the water situation in Wasco County?

Wasco County gets about 20.3" of rain a year, with severe drought in roughly 22.1% of years. On water rights, Wasco County lies in the Aquifers Withdrawn from Appropriation (Mosier; Silverton) — Commission orders withdraw specific aquifers near Mosier and Silverton from further appropriation; closed to new groundwater rights..

How remote is Wasco County?

A representative private-land location has about 155 people within a 30-minute drive and 300,782 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

Going off-grid in Wasco County means bringing your own water and power. The kit we’d start with:

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How Wasco compares in Oregon

Compare side-by-side →See all 36 Oregon counties ranked →