Bolthole Index

Garfield County, Washington

Building permits, zoning and land rules in Garfield County, Washington

60Index Score / 100
#15 of 39 in Washington

Unincorporated Garfield County, Washington requires a building permit for a new home, and county zoning also applies12. Garfield County Public Works is the first stop for building and planning, while the Garfield County Health District handles septic review34. Confirm the parcel's zoning, wastewater plan and road access before committing to a house site.

At a glance

Building permit
Required for a new dwelling outside city limits13
Zoning
County zoning applies; confirm the parcel's district and allowed use with Public Works2
Septic
Permitted through the Garfield County Health District before covered construction begins45
Owner-builder
Exempt from contractor registration when statutory conditions are met, but not from permits6
Tiny home
Must meet the state building code and local siting and permit requirements7
RV living
Private-land occupancy rules could not be confirmed; ask Public Works before relying on an RV as housing3
County-road driveway
County permission is required before constructing an approach to a county road8

Who to call

Building permits

Garfield County Public Works

Building-permit applications for Garfield County outside city limits

(509) 843-1301

19th and Arlington, Pomeroy, WA

Online permits →

Septic permits

Garfield County Health District

Health review associated with building applications and local septic administration

(509) 843-3412

121 South 10th Street, Pomeroy, WA

Floodplain permits

Garfield County Public Works

County floodplain questions

(509) 843-1301

300 S 19th Street, PO Box 160, Pomeroy, WA 99347

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

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Do you need a building permit in Garfield County, Washington?

Yes. A new dwelling in unincorporated Garfield County requires a county building permit, plan review and inspections1. The county's own permit FAQ says owners or authorized agents doing covered construction outside city limits must complete a building permit3. Washington's building code applies in every county and city, with local enforcement9. For homes, that means the 2021 International Residential Code with state amendments, effective in all Washington counties and cities on March 15, 202410. Do not assume a small project is automatically exempt: Washington merely allows local governments to adopt a limited valuation-based exemption, and the available information does not establish that Garfield County adopted it11. Ask Public Works which applications and trade permits your exact scope needs before ordering materials.

Who is the Garfield County building department, and how do you reach it?

Garfield County routes building and planning work through Public Works at 19th and Arlington in Pomeroy; the listed phone is (509) 843-13013. The county makes its building-permit process information and application available online3. Application review is project-specific, so describe the parcel, proposed use, structure and utilities when you call. For floodplain questions on land outside Pomeroy, the county directs callers to Public Works at the same phone number and lists its mailing address as 300 S 19th Street, PO Box 160, Pomeroy, WA 9934712.

Does Garfield County have zoning?

Garfield County administers a zoning ordinance, and its Planning Division reviews proposals for zoning, critical areas, environmental review, shoreline compliance and related development issues2. That means a buildable-looking rural tract still needs a parcel-specific answer on allowed uses, setbacks, lot size, height and access. Current countywide numbers for those standards could not be confirmed, so ask Garfield County Public Works for the parcel's zoning designation and the controlling ordinance text before designing3. Washington also regulates subdivisions and short subdivisions, and approval must conform to applicable zoning or other land-use controls13. A floodplain site adds a local development-permit step through the county government1412.

How do septic permits work in Garfield County?

Garfield County's local health jurisdiction administers on-site sewage permits, and county information identifies the Garfield County Health District at 121 South 10th Street in Pomeroy, phone (509) 843-3412415. Except for a minor repair, Washington requires an application and local-health permit before installing, repairing, modifying, connecting to or expanding an on-site sewage system5. The state application process calls for site and soil evaluation, a site plan, the water source and a detailed system design5. The local health officer must respond to a complete application within 30 days16. County information also says the septic construction permit must be approved before the building permit is released, so start septic review first4. Washington can require connection to public sewer when a sewer utility allows it and has adequate service within 200 feet, so ask whether a sewer line is near the parcel17. Only about 15% of county soils are rated without severe limitations for a conventional drain field, so make septic feasibility an early contingency rather than a post-purchase task18.

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

Garfield County's rule for living in an RV on private land could not be confirmed; call Public Works with the parcel number and ask about both temporary occupancy and occupancy during construction3. The state definition describing an RV as temporary, transient quarters that are not a primary residence does not itself grant private-land siting permission19. A Washington tiny house may be built on wheels and may be no larger than 400 square feet, but it must meet the Washington State Building Code and remains subject to local foundation, installation, location and permit requirements7. Garfield County zoning applies, so a tiny home's legality depends on the parcel and proposed placement as well as the structure itself2.

How do you build a home in Garfield County, Washington, step by step?

  1. Call Garfield County Public Works at (509) 843-1301 with the parcel number, proposed use and site concept; confirm zoning, setbacks, critical areas, floodplain status and required applications32.
  2. Arrange septic site and design review with the Garfield County Health District before construction begins155.
  3. Obtain county permission before building an approach to a county road, or written state permission for an approach on a state-highway right-of-way820.
  4. Submit the county building-permit application and plans; a valid complete application is considered under the building and land-use rules in effect on its application date21.
  5. Schedule the required inspections with the county and obtain final acceptance before occupancy; the exact inspection stages and certificate process should be confirmed with Public Works13.

What should you check before buying land in Garfield County?

Start with zoning and legal access: Garfield County has zoning, while a new county-road approach needs county permission and must meet county drainage and construction rules28. Check septic feasibility next because only about 15% of county soils avoid a severe conventional-drain-field limitation18. Review flood mapping with Public Works before placing improvements; development in a Washington floodplain requires a local floodplain development permit1412. Before drilling a well, the owner or agent must give the state at least 72 hours' notice of construction, whether or not a water-right permit is needed22. The county averages about 19.8 inches of precipitation annually, and only about 26.7% of its land is at a slope of 15% or less, so verify the actual parcel's water source, terrain and buildable area rather than relying on county averages2324. The median property-tax bill is about $1,306 a year, with an effective rate near 0.6%2526.

Watch-outs

  • Garfield County's current numeric setbacks, minimum lot sizes and local dwelling-size rules could not be confirmed; obtain the parcel's zoning designation and current ordinance from Public Works before designing3.
  • An owner-builder exemption concerns Washington contractor registration only; county building, septic and other permit requirements still apply6.
  • Electrical, plumbing and mechanical work are not covered by Washington's optional small-project building-permit exemption11.

Sources

  1. Garfield County Building Department (2026 county census)
  2. Garfield County Zoning Ordinance (2026 county census)
  3. Garfield County Public Works (garfieldcountywa.gov)
  4. Garfield County Public Health - Septic (2026 county census)
  5. WAC 246-272A-0200 Permit requirements (Washington statewide rule), quoted and re-checked
  6. RCW 18.27.090 — Exemptions, quoted and re-checked
  7. Tiny Houses (Washington statewide rule), quoted and re-checked
  8. RCW 36.75.130 — Approaches to county roads—Rules regarding construction—Penalty (Washington statewide rule), quoted and re-checked
  9. RCW 19.27.031 — State building code—Adoption—Conflicts—Opinions (Washington statewide rule), quoted and re-checked
  10. Chapter 51-51 WAC — State Building Code adoption and amendment of the 2021 International Residential Code, quoted and re-checked
  11. WAC 51-16-080 — Permit exemptions guideline (Washington statewide rule), quoted and re-checked
  12. Garfield County Public Works (garfieldcountywa.gov)
  13. RCW 58.17.030 — Subdivisions to comply with chapter, local regulations (Washington statewide rule), quoted and re-checked
  14. Planning & regulation — Washington State Department of Ecology (Washington statewide rule), quoted and re-checked
  15. Garfield County Health District (garfieldcountywa.gov)
  16. WAC 246-272A-0200 — Permit requirements, quoted and re-checked
  17. WAC 246-272A-0025 — Connection to public sewer system, quoted and re-checked
  18. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  19. app.leg.wa.gov (Washington statewide rule), quoted and re-checked
  20. RCW 47.32.150 — Approach roads, other appurtenances—Permit (Washington statewide rule), quoted and re-checked
  21. RCW 19.27.095 — Building permit application—Consideration—Requirements (Washington statewide rule), quoted and re-checked
  22. Chapter 18.104 RCW — Water Well Construction, quoted and re-checked
  23. Annual precipitation: Bolthole Index county data
  24. Share of land at 15% slope or less: Bolthole Index county data
  25. Median property tax bill: Bolthole Index county data
  26. Effective property tax rate: Bolthole Index county data

Written October 10, 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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Compared with neighboring counties

Like all 6 of its neighbors, Garfield County has countywide zoning.

RuleGarfield CountyColumbia CountyAsotin CountyWhitman CountyWalla Walla CountyAdams CountyFranklin County
Building permitRequiredRequiredLimitedRequiredRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Public HealthCounty Public HealthCounty Health DistrictCounty Public HealthCounty Dept. of Community HealthCounty Health Dept.Benton-Franklin Health District

County locator

Garfield County in Washington

60
County map
Garfield County highlighted among the Washington counties · colored by Index score

How Garfield County scores

Seclusion80100% ev.
Self-Sufficiency41100% ev.
Admin Boringness41100% ev.
Durability48100% ev.
Property Autonomy50100% ev.
Carry Cost8496% 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 →

$249kTypical home
0.6%Property tax
$1,814Land / acre
19.8"Annual rain
10.3% of yrsSevere drought
8.8 / yr (+6.8)Mid-century 100°F days
30.5 daysMid-century dry spell
0.96" (+7.1%)Mid-century 1-day rain
1.24×Wildfire change factor
100%Forward climate coverage
$1,352Home insurance / yr
1.9% / yrInsurance growth
1.14%Nonrenewal rate
single ZIP shrunk to state medianInsurance basis
2,044People within 30 min
549,580People within 2 hr
2,622Radius comparison (15 mi)
3.3People / sq mi
22.1%Federal land
26.7%Land at 15% slope or less
15%Soils rated "not limited" for septic (strict USDA rating)
62,907 acWorkable land screen
20.9%Wooded land
33.4 tonsBiomass / forest ac
48.7°FAvg temp

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Cities and towns in Garfield County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Answers from the rulebook for Garfield County

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

Garfield County rules

  • Who permits septicCounty (with conditions)

    Garfield County's on-site sewage permit process.

    • The opened county form refers to permits issued by Garfield County.
    • The form also references approval by the local health officer for repairs, alterations, or expansions.
    “I (the undersigned) understand that any permit issued by Garfield County, consistent with the above site plan, is valid ONLY if construction is according to this plan, and all other conditions of this permit are followed.”
    One more reviewed finding on this topic
    • Local (with conditions) — Local administration of onsite septic permitting in Garfield County.
      “ENVIRONMENTAL HEALTH SERVICES - ONSITE SEPTIC [...] I (the undersigned) understand that any permit issued by Garfield County, consistent with the above site plan, is valid ONLY if construction is according to this plan, and all other conditions of this permit are followed.”
  • County-wide zoningPresent

    The county administers a Zoning Ordinance; the Planning Division reviews proposals for zoning, critical areas, SEPA, and shoreline compliance.

    Garfield County Zoning Ordinance ↗Scouted from the county site, not yet independently re-checked

Washington rules that apply here

  • Building permitLimited

    Construction and alteration activities governed by Washington's state building code, subject to local administration and locally adopted permit exemptions.

    • Cities and counties may choose whether to adopt the permit exemption guideline.
    • The exemption applies to certain Group R, Division 3 and Group M, Division 1 construction or alteration activities with total valuation not exceeding $1,500 in any twelve-month period.
    • The activity may not affect structural components or reduce existing egress, light, air, or ventilation conditions.
    • The exemption does not include electrical, plumbing, or mechanical activities; separate permits are required for those items unless otherwise exempted.
    • The permit exemption does not exempt work from substantive state building-code standards or other applicable laws and ordinances.

    maximum exempt valuation: <= 1500 USD per 12 months (Only where the applicable city or county adopts the exemption and all stated conditions are met.)

    “Cities and counties are permitted the option of adopting a one thousand five hundred dollar building permit exemption for certain construction and alteration activities for Group R, Division 3 and Group M, Division 1 Occupancies.”
  • Owner-builder exemptionConditional

    An owner or other person performing construction-related contractor activities on the person's own property or personal residence under Washington contractor-registration law.

    • The exemption concerns registration provisions under chapter 18.27 RCW and does not itself eliminate applicable building, electrical, plumbing, mechanical, land-use, or inspection requirements.
    • For work on the person's own property, the exemption does not apply when the person performs contractor activities for the purpose of selling, demolishing, or leasing the property.
    • For an owner contracting with a registered contractor, the exemption does not apply to a person performing contractor activities to lease or sell improved property owned for less than twelve months.

    small-project contract threshold: < 500 USD (The threshold exemption does not apply when the work is part of a larger operation, contracts are divided to evade the chapter, or the person advertises as a contractor.)

    “The registration provisions of this chapter do not apply to: [...] (12) Any person working on his or her own property, whether occupied by him or her or not, and any person working on his or her personal residence, whether owned by him or her or not but this exemption shall not apply to any person who performs the activities of a contractor on his or her own property for the purpose of selling, demolishing, or leasing the property;”
    2 more reviewed findings on this topic
    • Available (with conditions) — Washington contractor-registration requirements for a person working on the person's own property or personal residence.
      “Any person working on his or her own property, whether occupied by him or her or not”
    • Conditional — Washington contractor-registration exemption for a person working on their own property or personal residence.
      “(12) Any person working on his or her own property, whether occupied by him or her or not, and any person working on his or her personal residence, whether owned by him or her or not but this exemption shall not apply to any person who performs the activities of a contractor on his or her own property for the purpose of selling, demolishing, or leasing the property;”
  • Building code adoptedAdopted (with conditions)

    The Washington State Building Code applies in all Washington counties and cities and includes the model codes adopted by reference in RCW 19.27.031, as amended by the Washington State Building Code Council.

    • The adoption is subject to exceptions stated in chapter 19.27 RCW and amendments adopted by the Washington State Building Code Council.
    • The 2021 International Building Code, including Appendix E, is adopted by reference with the exceptions noted in Title 51 WAC.
    • The Uniform Plumbing Code provisions affecting sewers or fuel gas piping are not adopted.
    • Only the portions of the International Wildland Urban Interface Code specifically referenced in RCW 19.27.560 are adopted.
    • The state building code is enforced by counties and cities; a county or city without a building department must contract with another county, city, or approved inspection agency.
    • The model codes are adopted or amended through a three-year state building code adoption cycle, subject to statutory interim, emergency, and legislative off-cycle amendments.

    International Building Code edition: 2021 (Including Appendix E; subject to exceptions in Title 51 WAC) · effective date of current WAC 51-50-003 adoption: 2024-03-15

    “there shall be in effect in all counties and cities the state building code [...] which are hereby adopted by reference:”
    2 more reviewed findings on this topic
  • InspectionsRequired

    Construction or work in Washington for which a permit is required under the applicable state energy-code provisions, including residential construction covered by WAC 51-11R-10500.

    • The requirement is for inspection under the applicable state energy code; the inspection is performed by the code official, designated agent, or approved agency.
    • The work must remain visible and accessible until approved.
    • The permit holder or authorized agent must notify the code official when work is ready and provide access and means for required inspections.
    • If work or an installation fails an initial inspection or test, corrections must be made and the work resubmitted.
    • The state building code is in effect in all counties and cities, subject to chapter 19.27 RCW exceptions and authorized local amendments.

    final inspection: required (The building may not be occupied until approved.)

    “The building shall have a final inspection and not be occupied until approved.”
  • Minimum dwelling sizeSpecified

    Dwelling units regulated by Washington's state building code.

    • The rule specifies habitable-space and room-area minimums, not a zoning minimum lot or gross floor-area standard.
    • Kitchens are expressly excepted from the minimum floor-area requirement.
    • Efficiency dwelling units must comply with Sections 1208.1 through 1208.4 and must have a separate closet, required kitchen facilities, light and ventilation, and a separate bathroom as stated in the source.
    • The current rule text states WSR 23-23-102 was filed 11/15/23 and effective 3/16/24.

    minimum habitable space: >= 190 square feet · minimum area of at least one room: >= 120 square feet · minimum net floor area of sleeping units and other habitable rooms: >= 70 square feet (Kitchens are not required to be of a minimum floor area.)

    “1208.3 Dwelling unit size. Dwelling units shall have a minimum of 190 square feet (17.7 m 2) of habitable space. 1208.4 Room area. Every dwelling unit shall have not less than one room that shall have not less than 120 square feet (11.2 m 2) of net floor area. Sleeping units and other habitable rooms of a dwelling unit shall have a net floor area of not less than 70 square feet (6.5 m 2). EXCEPTION: Kitchens are not required to be of a minimum floor area.”
  • Building heightSpecified

    Buildings subject to Washington's state building code, with allowable height determined by occupancy classification and type of construction.

    • Table 504.3 is occupancy- and construction-type-specific.
    • The source states that Chapters 4 and 5 contain specific exceptions to the allowable height.
    • The table includes NS and UL entries; the source footnotes state that NS is only for evaluation of existing building height under the International Existing Building Code and that other entries have sprinkler-related conditions.

    allowable building height: occupancy-classification and construction-type specific values in Table 504.3 feet above grade plane (See Chapters 4 and 5 for specific exceptions.)

    “Allowable Building Height in Feet Above Grade Plane”
  • Tiny homesAllowed (with conditions)

    Occupancy and placement of tiny houses in Washington

    • A tiny house may be built on wheels and may not exceed 400 square feet including kitchen, bathroom, and sleeping/living area.
    • It must be built to the Washington State Building Code.
    • Approval depends on where it is built; local building-department requirements and permits apply to foundation, installation, and location.
    • A wheeled structure that is not a tiny house as described may instead be a recreational vehicle or park model.
    • A manufactured home, including a tiny manufactured home, requires consultation with the local building department regarding where it may be located.

    maximum area: <= 400 square feet

    “A tiny house is a dwelling that may be built on wheels and is no larger than 400 square feet, including a kitchen, bathroom, and sleeping/living area, and must be built to the Washington State Building Code. The approval process for a tiny house depends on where it's built.”
  • Manufactured homesLimited

    State statutory limits on county regulation of the placement or use of HUD-standard manufactured homes in Washington; site-specific occupancy remains subject to applicable local and state requirements.

    • The nondiscrimination and equal-siting rule applies to homes built to 42 U.S.C. Sec. 5401-5403 standards, as amended in 2000.
    • Except as provided in RCW 36.01.225(2), a county may require that a manufactured home be new.
    • Except as provided in RCW 36.01.225(2), a county may require a permanent foundation specified by the manufacturer and enclosure of the space from the bottom of the home to the ground with concrete or an approved concrete product, load bearing or decorative.
    • Except as provided in RCW 36.01.225(2), a county may require compliance with local design standards applicable to all other homes in the neighborhood.
    • Except as provided in RCW 36.01.225(2), a county may require thermal equivalence to the state energy code and all other requirements for a designated manufactured home under RCW 35.63.160.
    • A county may not restrict location in a manufactured/mobile home community legally in existence before June 12, 2008, based exclusively on the manufactured/mobile home's age or dimensions.
    • A county may not prohibit siting on an existing lot solely because existing separation and setback requirements regulating distance between homes are unmet.
    • A county may restrict location in a manufactured/mobile home community for other reasons, including failure to comply with fire, safety, other local ordinances, or state laws related to manufactured/mobile homes.
    • The statute does not override legally recorded covenants or deed restrictions of record and does not affect authority granted under chapter 43.22 RCW.

    community legal-existence date for age-or-dimensions protection: 2008-06-12 (Applies to manufactured/mobile home communities legally in existence before this date.)

    “A county may not adopt an ordinance that has the effect, directly or indirectly, of discriminating against consumers' choices in the placement or use of a home in such a manner that is not equally applicable to all homes. Homes built to 42 U.S.C. Sec. 5401-5403 standards (as amended in 2000) must be regulated for the purposes of siting in the same manner as site built homes, factory built homes, or homes built to any other state construction or local design standard.”
  • Accessory dwellingsAllowed (with conditions)

    Accessory dwelling units in portions of Washington cities, towns, and counties located within designated urban growth areas and subject to the Growth Management Act requirements

    • Cities and counties planning under the chapter must adopt or amend ordinances and development, zoning, and other official controls to implement the statutory requirements.
    • The requirements apply only in portions of towns, cities, and counties within designated urban growth areas.
    • Local governments may still apply public-health, safety, building-code, environmental-permitting, on-site-wastewater, and generally applicable development regulations.
    • Local governments may restrict or prohibit ADUs where development is restricted because of on-site sewage infrastructure, critical areas, or other unsuitable physical characteristics.
    • Under RCW 36.70A.681, at least two ADUs must be allowed on qualifying lots in configurations specified by statute, subject to listed exceptions and limitations.
    • The statutory requirements do not apply to lots designated with critical areas or buffers, or to specified impaired or threatened potable-water-reservoir watersheds.

    minimum ADUs in qualifying configurations: >= 2 accessory dwelling units per qualifying lot (Applies to lots in all zoning districts within an urban growth area that allow single-family homes, subject to statutory exceptions.)

    “The city or county must allow at least two accessory dwelling units on all lots that are located in all zoning districts within an urban growth area that allow for single-family homes in the following configurations:”
  • Septic permitRequired

    Installation, repair, modification, connection to, or expansion of an on-site sewage system statewide.

    • A permit is not required for a minor repair.
    • For covered activities other than a minor repair, the application and permit must be obtained before construction begins.
    • The application includes the drinking-water source, sewer-utility status, parcel size, sewage source, utilities, soil and site evaluation, site plan, and detailed OSS design.
    • The local health officer responds within 30 days, may require additional information, may deny or revoke a permit for just cause, and may impose additional requirements necessary to protect public health.
    • A permit expiration date may not exceed five years from issuance.
    • The cited rule revision was filed March 1, 2024, and became effective April 1, 2025.

    permit response time: <= 30 days (As required in RCW 70.05.074.) · permit expiration: <= 5 years (From the date of permit issuance.)

    “Except for a minor repair, [...] shall submit an application and obtain a permit from the local health officer prior to beginning construction.”
    2 more reviewed findings on this topic
    • Required — Installation, repair, modification, connection to, or expansion of an on-site sewage system in Washington, including Garfield County.
      “shall submit an application and obtain a permit from the local health officer prior to beginning construction.”
    • Required — Installation, repair, modification, connection to, or expansion of an on-site sewage system in Garfield County, subject to Washington's statewide OSS rules.
      “Except for a minor repair, a person proposing the installation, repair, modification, connection to, or expansion of an OSS, shall submit an application and obtain a permit from the local health officer prior to beginning construction.”
  • Septic inspectionRequired

    On-site sewage systems for all activities requiring an OSS permit statewide.

    • The local health officer or an authorized inspector must coordinate access before inspection.
    • If the owner does not authorize access, the local health officer may use administrative search-warrant procedures under RCW 70A.105.030.
    • For a single-property OSS serving one dwelling unit on that property, an inspection and maintenance easement may not be required as a permit condition.
    • During final construction inspection, the local health officer or OSS designer must confirm the OSS meets the approved design.
    • Required inspections must include the minimum tank, lid/access/riser, OSS/reserve-area, component, record-drawing, and proprietary-product review items stated in WAC 246-272A-0260(5).
    “(1) For all activities requiring a permit, the local health officer shall inspect the OSS.”
  • Well permitLimited

    Groundwater wells and groundwater uses statewide under Washington's water-right permit exemption.

    • Domestic use is exempt up to 5,000 gallons per day.
    • Industrial use is exempt up to 5,000 gallons per day.
    • Lawn or garden irrigation is exempt only for a half-acre or less.
    • Stockwater is exempt.
    • Only one permit-exempt use of each type is allowed for any one project, regardless of project size.
    • Withdrawals from multiple wells for one project are aggregated toward the exemption limits.
    • Local governments and other laws and rules may impose additional requirements and limits.
    • Use in excess of the listed amounts, use for other purposes, or use from a surface-water source requires applying for and receiving a water-right permit.
    • Before drilling, a notice of intent must be submitted to Ecology 72 hours before drilling starts; the NOI is not itself a permit or approval to use water.
    • Permit-exempt uses remain subject to state water law, including possible restrictions relating to senior water rights and Streamflow Restoration Act requirements.

    domestic groundwater use exemption: <= 5000 gallons per day (Per project, with withdrawals from multiple wells aggregated.) · industrial groundwater use exemption: <= 5000 gallons per day (Per project, with withdrawals from multiple wells aggregated.) · lawn or garden irrigation exemption: <= 0.5 acre (For lawn or garden irrigation.) · well construction notice: 72 hours before drilling (Notice of intent is not a permit, certificate, or water-right application.)

    “The groundwater permit exemption allows for four small uses of groundwater without a water right permit: Domestic uses of up to 5,000 gallons per day Industrial uses of up to 5,000 gallons per day Irrigation of a lawn or garden, a half-acre or less in size Stockwater”
    One more reviewed finding on this topic
    • Limited — Water-well construction in Garfield County under Washington's statewide water-well construction and groundwater-permitting laws.
      “For a prospective water well owner to have a water well constructed without first obtaining a water right permit, if a permit is required;”
  • Mandatory utility hookupConditional

    Existing OSS failures and certain new developments statewide when public sewer service and applicable local requirements exist.

    • For an existing OSS failure within a sewer utility service area, the local health officer must require public-sewer connection if the sewer utility allows connection and adequate service is available within 200 feet measured along the usual or most feasible access route.
    • For an OSS repaired under Table X, connection is required when the local health officer deems it necessary to protect public health, adequate public sewer becomes available within 200 feet under the stated measurement rule, and the sewer utility allows connection.
    • Local boards of health may require new development to connect to protect public health.
    • Local boards of health shall require connection for new development or a development with a failing OSS when required by the comprehensive land use plan or development regulations.
    • The rule was filed March 1, 2024, and became effective April 1, 2025.

    public sewer availability distance: <= 200 feet (Measured from the existing building-drain/building-sewer connection, or where no building drain exists, from where the sewer line begins, along the usual or most feasible route of access.)

    “(b) Require connection to a public sewer system if the sewer utility allows the connection and has adequate public sewer services available within 200 feet from where the existing building drain connects to the existing building sewer, or where no building drain exists, within 200 feet from where the sewer line begins, as measured along the usual or most feasible route of access.”
    One more reviewed finding on this topic
    • Conditional — Connection of structures served by onsite sewage systems to public sewer systems in Washington, including Garfield County.
      “Require connection to a public sewer system if the sewer utility allows the connection and has adequate public sewer services available within 200 feet”
  • Agricultural exemptionAvailable (with conditions)

    Temporary growing structures used solely for production of horticultural plants in Washington.

    • The exemption is limited to temporary growing structures.
    • The structures must be used solely for production of horticultural plants, including ornamental plants, flowers, vegetables, and fruits.
    • The statute states that a temporary growing structure is not considered a building or structure for purposes of chapter 19.27 RCW.
    • This is not a general exemption for residences or all agricultural buildings.
    “The provisions of this chapter do not apply to temporary growing structures used solely for the production of horticultural plants including ornamental plants, flowers, vegetables, and fruits. A temporary growing structure is not considered a building or structure for purposes of this chapter.”
  • Subdividing landRegulated (with conditions)

    Subdivisions and short subdivisions in Garfield County under Washington's statewide subdivision statute, administered locally by the county legislative body for county territory.

    • Every subdivision must comply with chapter 58.17 RCW.
    • The county must adopt regulations and procedures for summary approval of short plats and short subdivisions.
    • A short plat or short subdivision may be approved only after appropriate written findings are made by administrative personnel.
    • Short-plat regulations may require surveys and monumentation, but must require recording the short plat or any alteration or vacation with the county auditor.
    • Land in a short subdivision may not be further divided in any manner for five years without filing a final plat, subject to the statutory exception when the short plat contains fewer than four parcels and the original filer creates up to four lots within the original short-plat boundaries.
    • A proposed subdivision and dedication may not be approved unless the county legislative body makes written findings addressing public health, safety, welfare, listed infrastructure and public-interest criteria.
    • Dedication of land, public improvements, and statutory impact fees may be required as conditions of approval, subject to the unconstitutional-taking limitation.
    • If groundwater supply is exempt from permitting under RCW 90.44.050, compliance with that exemption and applicable rules is sufficient for determining water-supply provisions for the subdivision.

    short-subdivision further-division period: 5 years (If the short plat contains fewer than four parcels, the original filer may file an alteration within the five-year period to create up to four lots within the original short-plat boundaries.)

    “Every subdivision shall comply with the provisions of this chapter.”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Subdivision and short subdivision of land in Washington, with approval administered by the city, town, or county legislative authority having jurisdiction.
      “Every subdivision shall comply with the provisions of this chapter. Every short subdivision as defined in this chapter shall comply with the provisions of any local regulation adopted pursuant to RCW 58.17.060.”
  • Driveway accessRequired

    Approaches or driveway connections from abutting property to Washington county roads.

    • Permission must be obtained from the county board before construction.
    • Counties may adopt reasonable approach-construction rules, including culvert, fill-depth, and drainage requirements.
    • Construction must be supervised by the county road engineer and paid for by the person benefited.
    • Violation is a misdemeanor.
    “No person shall be permitted to build or construct any approach to any county road without first obtaining permission therefor from the board.”
    One more reviewed finding on this topic
    • Required — Approach roads and driveway connections constructed on Washington state highway rights-of-way.
      “No person, firm, or corporation may be permitted to build or construct on state highway rights-of-way any approach road or any other facility, thing, or appurtenance not heretofore permitted by law, without first obtaining written permission from the department.”
  • Building in a floodplainRequired

    Development work on property located in a Washington floodplain.

    • The applicant must contact the local government to obtain the floodplain development permit.
    • Local governments manage floodplain development under the National Flood Insurance Program.
    • Some local governments impose standards higher than NFIP minimums, including regulation of areas larger than FEMA Flood Insurance Rate Maps show.
    • Washington counties and cities planning under the Growth Management Act must periodically review and update Critical Areas Ordinances addressing frequently flooded areas.
    “If you're planning to do any development work on a property located in a floodplain, contact your local government to obtain a floodplain development permit. Local governments are responsible for managing development in floodplains under the NFIP; however, some local governments have higher regulatory standards than the minimums of the NFIP, such as regulating a larger area than what is shown on Flood Insurance Rate Maps.”
  • Permit feesPublished (with conditions)

    State building-permit surcharge collected on residential and commercial building permits issued by Washington counties and cities

    • The fee applies to each residential building permit and each commercial building permit issued by a county or city.
    • An additional $2 surcharge applies to each residential unit beyond the first unit in a building containing more than one residential unit.
    • Each county and city remits collected amounts quarterly to the state treasury.
    • No remittance is required until at least $50 has accumulated.

    residential building permit fee: 6.5 USD · commercial building permit fee: 25 USD · additional residential-unit surcharge beyond first unit: 2 USD (Applies to each residential unit beyond the first in a building containing more than one residential unit.) · minimum accumulated amount before remittance: >= 50 USD (No quarterly remittance is required until this amount has accumulated.)

    “There is imposed a fee of six dollars and fifty cents [...] a fee of twenty-five dollars [...] additional surcharge of two dollars [...] minimum of fifty dollars”
    One more reviewed finding on this topic
  • Permit processPartial

    Washington building-permit applications statewide, with completion requirements defined by local ordinance.

    • A valid and fully complete application is considered under the building-permit and zoning or other land-use ordinances in effect on the application date.
    • For construction costing more than $5,000, the application must include the legal description or tax parcel number and available street address, owner contact information, prime-contractor information and registration number, and specified lender or payment-bond information.
    • If the subsection (2)(d) information is unavailable when submitted, the applicant must state that fact; the application is processed forthwith and the permit issued as if supplied, with the remaining information due when reasonably obtainable.
    • The cited section does not provide the complete local application process.

    construction project threshold: > 5000 USD (Minimum application information requirements apply.)

    “The requirements for a fully completed application shall be defined by local ordinance. A local government shall accept applications from a regional transit authority established under chapter 81.112 RCW regardless of whether the regional transit authority owns or has possession and use of the property subject to the application, so long as the application is otherwise complete. For any construction project costing more than $5,000 the application shall include, at a minimum:”
    One more reviewed finding on this topic
    • Partial — Washington onsite sewage permit process applicable in Garfield County.
      “Respond to an application within 30 days as required in RCW 70.05.074;”
  • Campground & park staysLimited

    Recreational vehicles in the context of Washington's manufactured/mobile-home community statutes

    • The rule defines an RV as temporary and transient living quarters.
    • The RV is not occupied as a primary residence.
    • The RV is not immobilized or permanently affixed to a manufactured/mobile home lot.
    • This claim does not establish general statewide siting permission on private land; local land-use and building rules may apply.
    “(12) "Recreational vehicle" means a travel trailer, motor home, truck camper, or camping trailer that is primarily designed and used as temporary living quarters, is either self-propelled or mounted on or drawn by another vehicle, is transient, is not occupied as a primary residence, and is not immobilized or permanently affixed to a manufactured/mobile home lot.”
    One more reviewed finding on this topic
    • Limited — Camping and temporary occupancy in Washington State Parks facilities
      “The maximum length of stay shall be no more than 10 nights in one park within a 30-day period. Total nights stayed by the same camping party must not exceed 90 nights per calendar year in all state parks. These limitations shall not apply to those individuals who meet the qualifications of WAC 352-32-280 and 352-32-285.”
  • county zoning authorityGeneral

    Washington counties adopting zoning and related official controls for county jurisdiction, including unincorporated areas.

    • A county must create a planning agency as authorized in RCW 36.70.030 and RCW 36.70.040 before engaging in the chapter's planning program.
    • Zoning maps may be adopted only for areas covered by a comprehensive plan containing at least a land use element and a circulation element.
    • Zoning regulations may address land uses, building location and dimensions, yards and open spaces, population density, lot coverage, parking, and minimum gross floor area requirements for single-family detached dwellings.
    • The cited enabling provisions do not state a population threshold, named-county limitation, or special geographic limitation.
    “Any board, by ordinance, may establish classifications, within each of which, specific controls are identified, and which will regulate:”
    One more reviewed finding on this topic
    • General — Washington counties may plan and adopt zoning and other official controls for county land, including unincorporated areas, through their boards and planning agencies.
      “Such official controls may include, but are not limited to, ordinances establishing zoning, subdivision control, platting, and adoption of detailed maps.”
  • county building authorityGeneral

    Washington counties requiring and enforcing building permits and adopting amendments to the state building code for residential construction within county jurisdiction, including unincorporated areas.

    • The state building code must be enforced by counties and cities within their jurisdictional boundaries.
    • A county without a building department must contract with another county, city, or approved inspection agency for enforcement.
    • County amendments may not diminish the minimum performance standards and objectives of the state building code.
    • Residential-building amendments are subject to approval by the state building code council under RCW 19.27.074(1)(b), except as provided by statute.
    • The building-permit definition incorporates exemptions in International Building Code section 105.2 and International Residential Code section R105.2.
    • Counties may adopt permit exemptions for certain specified R-3 or M-1 construction or alteration with total fair market value not exceeding $1,500, but the exemption does not remove substantive code standards.

    permit-exemption fair-market-value ceiling: <= 1500 USD (Applies only to certain construction or alteration of group R, division 3, or group M, division 1 occupancies under RCW 19.27.060(7); substantive code standards still apply.)

    “The state building code required by this chapter shall be enforced by the counties and cities. Any county or city not having a building department shall contract with another county, city, or inspection agency approved by the county or city for enforcement of the state building code within its jurisdictional boundaries.”

Still unanswered

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

  • Certificate of occupancy — Certificates of occupancy in Garfield County.
  • Local zoning — Aggregate local zoning across Garfield County, including county and any incorporated or subordinate local jurisdictions.
  • Zoning districts — Published zoning districts and maps in Garfield County.
  • Minimum lot size — Minimum lot-size requirements in Garfield County.
  • Setbacks — Building and land-use setbacks in Garfield County.
5 more unanswered
  • Lot coverage
  • Living in an RV
  • Camping on your land
  • Off-grid sanitation
  • 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.

Living off-grid in Garfield County, Washington

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

Garfield County scores 60/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and sparse surroundings — about 2,044 people within a 30-minute drive. Watch-outs: thin water margin (19.8″/yr rainfall) and more administrative friction around building and land use.

Do you need a building permit in Garfield County, Washington?

Garfield County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Garfield County Public Health (local health jurisdiction, with Asotin County Environmental Health Administrator). 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.

How much does land cost in Garfield County, Washington?

Land in Garfield County runs about $1,814 per acre, based on the latest county data.

What is the water situation in Garfield County?

Garfield County gets about 19.8" of rain a year, with severe drought in roughly 10.3% of years.

How remote is Garfield County?

A representative private-land location has about 2,044 people within a 30-minute drive and 549,580 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.

How Garfield compares in Washington

Compare side-by-side →See all 39 Washington counties ranked →