Bolthole Index

Crook County, Oregon

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

62Index Score / 100
#10 of 36 in Oregon

Unincorporated Crook County, Oregon requires a building permit for a new home, and the county Building Department reviews plans and inspects permitted construction12. County zoning also applies, so planning approval comes before the later development steps34. Where public sewer is unavailable, Crook County administers septic permitting under authority delegated by Oregon DEQ5.

At a glance

Building permit
Required for a new home; Crook County reviews plans and inspects construction12
Zoning
Yes; Crook County administers zoning in unincorporated areas36
Septic
County permit required for a new, altered or repaired system57
RV living
County rules for a standalone RV residence remain unconfirmed; ask Planning before relying on it8
Tiny home
No countywide occupancy rule confirmed; zoning, building and sanitation approval may depend on the parcel and design317
Owner-builder
Available, but the exemption is narrow and does not eliminate the building permit910
Wells
A landowner drilling a water-supply well needs the state permit, fee and financial security11

Who to call

Building permits

Crook County Community Development Building Department

Building permit applications, construction-document review and inspections in Crook County

541-447-3211

[email protected]

300 NE 3rd Street, Prineville, OR 97754

Online permits →

Planning & zoning

Crook County Community Development Planning Department

Planning applications, parcel zoning, land-use review, setbacks and floodplain questions

541-447-3211

[email protected]

300 NE 3rd St, Room 12, Prineville, OR 97754

Online permits →

Septic permits

Crook County Community Development On-Site Septic Program

Septic site evaluations, construction permits and installation inspections in Crook County

541-447-3211

[email protected]

300 NE 3rd St, Room 12, Prineville, OR 97754

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 Crook County, Oregon?

Yes. Crook County requires a permit before covered residential construction, alteration, repair, relocation or change of occupancy begins12. The county Building Department reviews construction documents against adopted codes and inspects work against the approved documents2. A nonhabitable detached accessory structure can be exempt when it stays within the code's size and height limits, but separate plumbing, electrical or mechanical permits may still apply12. Qualifying agricultural buildings can be exempt from the structural code, but a dwelling never qualifies for that agricultural exemption, and electrical, plumbing and mechanical work remains regulated13. An owner-builder provision is also available, but it only relaxes specified rules for ceiling height, room size and maintaining temperature; the owner still needs a building permit10.

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

Crook County Community Development Building Department is the permit office for building applications, plan review and construction inspections14. Call 541-447-3211, email [email protected], or visit 300 NE 3rd Street in Prineville14. The county directs applicants to Oregon ePermitting for permit-history searches, applications, payments and inspection scheduling14. Building fees are usually collected in stages: the structural plan-review charge is due before examiners review the documents, and remaining fees are invoiced after approval when the permit is ready to issue2. The county's published schedule says fees vary by valuation and review type, with a state surcharge added15. Applications and permits remain active for 180 days, and each approved inspection extends that activity period another 180 days2.

Does Crook County have zoning?

Yes. Crook County administers its Development Code in unincorporated areas, while property inside Prineville city limits is outside county code-enforcement jurisdiction6. The county publishes multiple base districts and overlays, and the permitted use, parcel dimensions and approval path depend on the parcel's exact district16. Contact the Planning Department at 541-447-3211 or [email protected] and ask for the parcel's zoning and permit history before drawing a site plan17. Crook County has not established one universal minimum lot size, setback, lot-coverage limit, building-height limit or minimum dwelling size in the material reviewed for this guide; Planning should answer those questions for the exact tax lot and proposed use3. Oregon law separately establishes minimum parcel sizes for covered farm and forest resource lands, subject to statutory exceptions18.

How do septic permits work in Crook County?

Crook County's On-Site Septic Program administers local septic review under authority granted by Oregon DEQ5. A permit is required to install a new system or alter or repair an existing one7. Start with a site evaluation: the county requires the evaluation to be approved before a construction application can be made, and the evaluation submission includes a site plan, fees and test holes7. After installation, the County Sanitarian inspects the work; the number of visits depends on system complexity and site conditions19. Only 1.1% of county soils are rated without severe limitations for a conventional drain field, so make septic feasibility an early purchase contingency rather than assuming a standard system will work20. Call 541-447-3211 or email [email protected] for the current application path21.

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

Do not assume a bare rural parcel can be occupied full-time by an RV or tiny home. Oregon lets a county choose to allow one residential-use RV on a rural parcel under narrow conditions, including an existing owner-occupied primary home on the property, but the available county material does not confirm that Crook County adopted that option8. State law protects RV occupancy in certain parks and after a natural disaster under separate conditions; those protections do not create a general right to live in an RV on vacant land22. A manufactured dwelling may be occupied on private land with owner consent when water, sewage and other applicable standards are met, but zoning and permits still matter23. Crook County's rules for tiny-home occupancy and general private-land camping remain unconfirmed, so give Planning the unit specifications and tax lot before buying17.

Building a home in Crook County: the steps, in order

  1. Ask the Planning Department to confirm the tax lot's zoning, allowed dwelling type, setbacks, access requirements and any floodplain review1724.
  1. Submit the planning application; Crook County requires planning approval before moving to the next checklist step4.
  1. If needed, submit a road-approach application for access from a county-maintained or public road25.
  1. Complete the septic site evaluation and purchase the septic construction permit before submitting building permits74.
  1. Submit the building application, approved site plan, construction plans, truss information and engineering through the county's process414.
  1. Keep permitted work exposed for required inspections, and install and obtain approval of the septic system before final building inspection264.
  1. Obtain the certificate of occupancy before occupying a new dwelling27.

What should you check before buying land in Crook County?

Start with zoning and legal access, then make the purchase contingent on a satisfactory septic site evaluation3257. Conventional septic conditions are difficult across much of Crook County: only 1.1% of soils are rated without severe drain-field limitations20. Water deserves equal attention because annual precipitation is about 14 inches and severe drought appears in 36.2% of years2829. If you plan to drill your own water-supply well, Oregon requires a landowner permit, fee and bond or irrevocable letter of credit before work11. Check the flood map and county review requirements before siting improvements in a special flood-hazard area24. For carrying costs, the county's effective property-tax rate is about 0.6%, and the median annual property-tax bill is about $2,7033031.

Watch-outs

  • Planning approval comes first, and the septic construction permit must be purchased before the building-permit submission4.
  • Only 1.1% of Crook County soils are rated without severe limitations for a conventional septic drain field, so verify the specific site before closing20.
  • Crook County's general rules for RV residence, tiny-home occupancy, temporary camping, setbacks and minimum dwelling size remain unconfirmed; ask Planning about the exact parcel and proposal17.

Sources

  1. Crook County Building Department (2026 county census)
  2. Building Department, quoted and re-checked
  3. Crook County Planning Department (2026 county census)
  4. Development Checklist, quoted and re-checked
  5. On-Site Septic, quoted and re-checked
  6. Crook County Planning Commission regular meeting - August 26, 2026, quoted and re-checked
  7. On-Site Septic, quoted and re-checked
  8. Oregon Revised Statutes, ORS 215.490 (Oregon statewide rule), quoted and re-checked
  9. 2023 Oregon Residential Specialty Code - ORS 455.320 reprinted (2026 county census)
  10. 2023 Oregon Residential Specialty Code — Owner-built dwellings, quoted and re-checked
  11. Landowner Constructed Wells, quoted and re-checked
  12. 2023 Oregon Residential Specialty Code — Chapter 1, quoted and re-checked
  13. Oregon Revised Statutes, Chapter 455 (Oregon statewide rule), quoted and re-checked
  14. Crook County Community Development Building Department (crookcountyor.gov)
  15. Crook County Fee Schedule, Fiscal Year 2026-27, quoted and re-checked
  16. Title 18 Zoning, Crook County Code, quoted and re-checked
  17. Crook County Community Development Planning Department (crookcountyor.gov)
  18. Oregon Revised Statutes, Chapter 215 (Oregon statewide rule), quoted and re-checked
  19. On-Site Septic, quoted and re-checked
  20. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  21. Crook County Community Development On-Site Septic Program (crookcountyor.gov)
  22. Oregon Revised Statutes, ORS 197.493 (Oregon statewide rule), quoted and re-checked
  23. Oregon Revised Statutes, ORS 446.125 (Oregon statewide rule), quoted and re-checked
  24. Crook County Board of Commissioners Agenda Packet, quoted and re-checked
  25. Development Checklist, quoted and re-checked
  26. 2023 Oregon Residential Specialty Code — Inspections and Certificate of Occupancy, quoted and re-checked
  27. 2023 Oregon Residential Specialty Code — Inspections and Certificate of Occupancy, quoted and re-checked
  28. Annual precipitation: Bolthole Index county data
  29. Share of years in severe drought: Bolthole Index county data
  30. Effective property tax rate: Bolthole Index county data
  31. Median property tax bill: Bolthole Index county data

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

Crook County in Oregon

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

How Crook County scores

Seclusion76100% ev.
Self-Sufficiency40100% ev.
Admin Boringness42100% ev.
Durability48100% ev.
Property Autonomy72100% ev.
Carry Cost70100% 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 →

$482kTypical home
0.6%Property tax
$1,808Land / acre
14"Annual rain
36.2% of yrsSevere drought
2.5 / yr (+2.2)Mid-century 100°F days
34.2 daysMid-century dry spell
0.87" (+6.8%)Mid-century 1-day rain
1.16×Wildfire change factor
100%Forward climate coverage
$1,387Home insurance / yr
5% / yrInsurance growth
0.82%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
1,198Radius comparison (15 mi)
9People / sq mi
49.9%Federal land
63.1%Land at 15% slope or less
1.1%Septic soil without severe limits
20,313 acWorkable land screen
30.6%Wooded land
20.4 tonsBiomass / forest ac
46.1°FAvg temp

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Answers from the rulebook for Crook County

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

Crook County rules

  • Building code adoptedAdopted (with conditions)

    Building-code administration by the Crook County Building Department for building permit applications and construction inspections in Crook County.

    • The Building Department reviews construction documents for compliance with Crook County's adopted building codes and inspects construction against approved documents.
    • For stick-built dwellings, mechanical plans must be submitted with structural plans and the page directs applicants to the 2021 Oregon Residential Specialty Code.
    • For property in the Parks and Recreational district, a Parks and Recreation fee is required before issuance of a dwelling or manufactured-home permit; the fee is obtained from the City of Prineville.
    • Building permit fees are generally split into a structural plan-review payment before examination and remaining fees when plans are approved and ready for issuance.
    • Applications and permits are active for 180 days, and each approved inspection extends the permit another 180 days.
    • Inspections generally occur on the next business day unless a later date is requested, with inspection times from 8 a.m. to 4 p.m.

    permit activity period: 180 days (Each approved inspection extends the permit for another 180 days.)

    “We, the Building Department, process your building permit applications, review your construction documents to ensure it meets Crook County's adopted building codes, and inspect your construction to verify it is being constructed to your approved construction documents.”
  • Local zoningPresent (with conditions)

    County-administered zoning for land reviewed under Crook County Code Title 18, including rural residential and exclusive farm use zones.

    • Specific uses and development standards depend on the applicable zoning district and county code chapter.
    • The official notice identifies Rural Residential R-5, Rural Residential R-10, Exclusive Farm Use Zone EFU-3, conditional-use review, comprehensive-plan amendments, and zone-map amendments.
    • The source does not establish zoning authority inside incorporated municipalities; municipal rules may apply there.
    “Code Enforcement is responsible for enforcing the Solid Waste and Development Code for Crook County. Our jurisdiction covers all unincorporated areas of Crook County and some urban growth areas. Please note: we do not respond to complaints for properties within any city limits of Prineville.”
  • Zoning districtsPublished (with conditions)

    Crook County Title 18 zoning districts and overlays governing unincorporated county land.

    • The zoning title establishes multiple district chapters and a flood plain combining zone.
    • District-specific use, dimensional, and approval standards apply by zone.
    • The City of Prineville and other incorporated jurisdictions may have separate municipal rules.
    “Chapter 18.28 FOREST ZONE, F-1 [...] Chapter 18.32 RURAL SERVICE CENTER ZONE, RSC”
  • Who permits septicCounty

    On-site septic regulation and permitting in Crook County.

    • The County acts through authority granted by the Oregon Department of Environmental Quality.
    • The County must apply DEQ regulations and requirements, which can change over time.
    • The program is used for rural development where no public sewer is available.
    “The On-Site Septic Program, sometimes referred to as On-Site Sanitation, or just On-Site Program, is administered by the County through authority granted by the State's Oregon Department of Environmental Quality (DEQ).”
  • Septic permitRequired

    New, altered, or repaired septic systems under Crook County's On-Site Septic Program.

    • The program applies to rural development where no public sewer is available.
    • A site evaluation must be completed and approved before the construction application can be made.
    • The site evaluation application includes fees, a site plan map, and a minimum of three test holes.
    • The construction application includes fees and is specific to the approved system type.
    • The County must apply DEQ regulations and requirements, which can change over time.
    • The state DEQ page states the installation permit is valid for one year.

    permit validity: 1 year

    “Septic permits are required to install a new septic system, alter an existing septic system, or repair an existing septic system.”
  • Septic inspectionRequired

    Inspection of septic systems installed through Crook County's On-Site Septic Program.

    • Inspections occur after the construction application and installation process.
    • The County Sanitarian conducts the inspections to verify proper installation.
    • The number of inspections depends on system complexity and physical site features.
    • The simplest systems usually require one or two inspections.
    • More complicated systems, such as sand filters, may require multiple inspections.

    usual inspections for simplest systems: 1-2 inspections

    “Lastly, a series of inspections is conducted by the County Sanitarian to ensure the system is installed properly by measuring such items as slope across the septic lines and the elevation of the tank.”
  • Mandatory utility hookupConditional

    Sanitary wastewater disposal for rural development in Crook County.

    • On-site septic is used where no public sewer is available.
    • In urban areas, including incorporated cities, a public sewer system is typically available and is the system of choice for higher-density development.
    • This claim does not identify municipal sewer connection requirements or fees.
    “The On-Site Septic Program is utilized for rural development where no public sewer is available.”
  • Subdividing landRegulated (with conditions)

    Tentative subdivisions in unincorporated Crook County.

    • The subdivision review committee reviews all tentative subdivision plans and provides comments or recommendations to the planning commission for inclusion in the staff report.
    • Review considers preliminary plat requirements, conformance to the zoning ordinance, water supply, sewage disposal adequacy or soil capability for subsurface sewage disposal, public services, natural hazards, agricultural and forestry impacts, and other listed factors.
    • A subdivision conference with the subdivision review committee, subdivider or authorized agent, and engineer or surveyor is scheduled before submittal to the commission.
    “The director shall schedule a meeting with the subdivision review committee and the subdivider or his authorized agent and engineer or surveyor prior to submittal to the commission.”
  • Driveway accessRequired

    Access from a county-maintained or public road for development in Crook County.

    • A road approach is required if applicable to the proposed access.
    • The road approach may be submitted with the planning application or before planning approval.
    • The fee varies according to the fee schedule.
    “Road Approach (if required): For access from a County Maintained or public road.”
  • Building in a floodplainRequired

    Development permits for property in a mapped floodway or area of special flood hazard in Crook County.

    • The floodplain administrator reviews all development permits.
    • All chapter, local, state, and federal permit requirements must be satisfied.
    • Floodway provisions apply when the development is located in a floodway.
    • Review also addresses areas of special flood hazard, available base flood elevation data, substantial improvement, watercourse alteration, placement of fill, and excavation.
    • The county fee schedule separately lists a $195 floodplain development review fee effective July 1, 2026.

    floodplain development review fee: 195 USD (effective July 1, 2026)

    “§ 18.85.080 Establishment of development permit. [...] All development within special flood hazard areas is subject to the terms of this chapter”
  • Short-term rentalsLimited

    Rooms, vacation homes, RV spaces, campsites, and similar overnight accommodations rented for fewer than 30 consecutive days in unincorporated Crook County.

    • Operators must collect an 8.5% transient lodging tax.
    • Operators must register with the County Tax Administrator within 15 days of starting business and display the certificate.
    • Operators must file returns and payments by the 15th of each month for the prior month's rentals; returns received after the 16th are delinquent.
    • Long-term stays of 30 days or more, rentals costing less than $4 per day, certain medical or residential-care lodging, and lodging within Prineville city limits are excluded from this county tax.
    • The tax page establishes tax administration and does not by itself resolve all zoning or land-use approval requirements.

    transient lodging tax: 8.5 percent of rent · registration deadline: 15 days after starting business · transient stay threshold: < 30 consecutive days (30 days or longer is excluded from the tax)

    “If you rent out rooms, vacation homes, RV spaces, or campsites in unincorporated Crook County, you must collect an 8.5% Transient Lodging Tax”
  • Permit feesPublished (with conditions)

    Crook County Community Development building and development permits.

    • The fee schedule is effective July 1, 2026.
    • Structural permits use valuation as determined by the ICC Valuation Table current as of April 1 of each year.
    • A 12% Oregon state surcharge is added to building permit fees.
    • Fees vary by permit type, valuation, project characteristics, and applicable reviews.

    minimum structural permit fee: 126 USD (plus applicable state surcharge) · structural plan review: 75 percent of structural permit fee · floodplain development review: 195 USD · advanced planning fee: 0.3 percent of building valuation (maximum $105,000; waived for projects under $300,000)

    “CD - Building Services Structural Permits: Plus applicable State Surcharge”
  • Permit processPublished (with conditions)

    Residential development and building permit applications in Crook County.

    • Only complete applications are accepted.
    • Planning approval must precede the next checklist step.
    • A road approach may be submitted with the planning application or before planning approval when required.
    • The septic construction permit must be purchased before building permits can be submitted.
    • The septic system must be installed and approved before final building inspection approval.
    • Building applications require construction/building plans, truss specifications, layouts, engineer calculations, and an approved site plan; proof of SDC and/or Parks and Recreation payment is required before issuance when applicable.
    • Applications, payments, and inspection scheduling are available through Oregon ePermitting.
    “Planning must be approved prior to moving to the next step.”
  • County-wide zoningPresent

    Crook County land use is governed by the Crook County Comprehensive Plan and Land Use Code; all unincorporated land is zoned under Oregon statewide land-use law.

    Crook County Planning Department ↗Scouted from the county site, not yet independently re-checked

Oregon rules that apply here

  • Building permitRequired

    Residential construction and regulated building, occupancy, gas, and mechanical-system work in Crook County, including unincorporated areas, subject to Oregon’s statewide residential specialty code.

    • The owner or authorized agent must apply to the building official and obtain the required permit before covered work begins.
    • Permits are not required for listed exempt work, including nonhabitable one-story detached accessory structures not exceeding 200 square feet and 15 feet in height; on parcels of at least 2.0 acres located at least 20 feet from property lines and regulated structures, that accessory-structure exemption may extend to 400 square feet.
    • Other listed exemptions include certain sidewalks, slabs, driveways, cosmetic work, pools, playground equipment, limited porch/deck/patio covers, certain awnings, nonbearing partitions, siding repairs, low decks, masonry repair, gutters, qualifying door/window replacements, qualifying reroofing, and certain membrane-covered frame structures.
    • Partitions creating habitable space or requiring fire resistance are not exempt. Permits remain required for specified structural-member changes, fire-resistance-rated doors or windows, wildfire-hazard-zone reroofing, townhouses, and photovoltaic roof coverings.
    • Separate plumbing, electrical, and mechanical permits may still be required for otherwise exempt work. New construction and substantial improvements in areas designated by the floodplain administrator must minimize flood damage under the stated code, FEMA regulations, and ASCE 24.

    detached accessory structure exemption area: <= 200 sq ft (May increase to 400 sq ft on a parcel of at least 2.0 acres with a minimum 20-foot separation from property lines and regulated structures) · detached accessory structure exemption height: <= 15 ft (Measured from grade plane to average height of highest roof surface) · qualifying parcel area for larger accessory exemption: >= 2 acres (Structure must also be at least 20 feet from property lines and regulated structures) · qualifying deck or patio cover area: <= 200 sq ft (Must be at least 3 feet from lot lines) · qualifying deck walking-surface height: <= 30 in (Measured above adjacent grade within 3 feet horizontally) · qualifying membrane-covered frame structure area: <= 500 sq ft (Must be nonhabitable, one story, and at least 3 feet from a lot line)

    “R105.1 Required. Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any gas or mechanical system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the building official and obtain the required permit.”
  • Owner-builder exemptionAvailable (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.

    • The owner must be the recorded title owner or contract purchaser shown on the last available complete assessment roll.
    • The owner must not have used the subsection (2) exemptions during the five years before applying again.
    • The exemption applies only to structural-code requirements for ceiling heights, room sizes, and maintenance of specific temperature levels.
    • It applies to new construction, renovation, remodeling, or alteration of an owner-built dwelling or outbuilding.
    • A building permit must be issued and must note whether the owner-built dwelling or outbuilding complies with the exempted requirements.
    • If the structure does not comply with those requirements, the owner-builder must file a copy of the building permit with the county clerk for permanent deed records and provide a legally sufficient property description.
    • Noncompliance with the filing requirement does not affect conveyance of an interest in the property.

    prior use lookback: 5 years (The owner must not have previously taken advantage of the subsection (2) exemptions during that period.)

    “Owner-built dwellings and outbuildings shall be exempt from any requirements of the structural code for ceiling heights, room sizes”
    One more reviewed finding on this topic
    • Conditional — Owner-built single-family dwellings and adjacent auxiliary structures in Crook County constructed for occupancy by the owner.
      “Owner-built dwellings and outbuildings shall be exempt from any requirements of the structural code for ceiling heights, room sizes and the maintenance of specific temperature levels in those structures. The exemption shall apply to the new construction, renovation, remodeling or alteration of an owner-built dwelling or outbuilding.”
  • InspectionsRequired

    Construction or work in Crook County for which an Oregon residential building permit is required.

    • Inspection applies to work for which a permit is required; permit-exempt work is outside this inspection requirement.
    • The work must remain accessible and exposed until approved, and the permit applicant must provide access and means for inspection.
    • Required inspections include foundation, slab or under-floor, mechanical and gas systems, framing and masonry, insulation and vapor retarder, and final inspection, subject to the stated exceptions.
    • Work may not proceed beyond each successive inspection point without building-official approval.
    • Floodplain inspections and document submissions are determined by the floodplain administrator.

    final inspection timing: after all work required by the building permit is completed

    “R109.1 General. Construction or work for which a permit is required shall be subject to inspection by the building official and such construction or work shall remain accessible and exposed for inspection purposes until approved.”
  • Certificate of occupancyLimited

    New residential dwellings and townhouses in Crook County, including unincorporated areas, before occupancy.

    • Prior to occupancy of a new residential dwelling or townhouse, the building official must issue a certificate of occupancy unless a temporary certificate of occupancy is issued.
    • Certificates of occupancy are not required for work exempt from permits under Section R105.2 or for accessory buildings or structures.
    • Before issuance, the general contractor or owner issued the structural permit must provide contact and relevant license information for the general, electrical, HVAC, and plumbing contractors that performed work.
    • A temporary certificate may be issued before all work is complete if the portion can be occupied safely, and the building official sets its validity period.
    • The certificate may be revoked in writing when the dwelling or townhouse violates applicable law posing a health or safety threat.
    “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.”
  • Minimum lot sizeSpecified

    Lots or parcels in Oregon resource-land zones covered by ORS 215.780: exclusive farm use land and designated forestland.

    • The stated standards apply except as provided in ORS 215.780(2).
    • A county may adopt a lower minimum lot or parcel size in specified circumstances if it demonstrates compliance to the Land Conservation and Development Commission or satisfies one of the statutory exceptions.
    • The statute states that a county with an acknowledged smaller minimum lot or parcel size described in ORS 215.780(5) need not comply with subsection (2).

    minimum lot or parcel size for exclusive farm use land not designated rangeland: >= 80 acres (Subject to ORS 215.780(2) and (5).) · minimum lot or parcel size for exclusive farm use land designated rangeland: >= 160 acres (Subject to ORS 215.780(2) and (5).) · minimum lot or parcel size for designated forestland: >= 80 acres (Subject to ORS 215.780(2) and (5).)

    “Except as provided in subsection (2) of this section, the following minimum lot or parcel sizes apply to all counties: (a) For land zoned for exclusive farm use and not designated rangeland, at least 80 acres; (b) For land zoned for exclusive farm use and designated rangeland, at least 160 acres; and (c) For land designated forestland, at least 80 acres.”
  • 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”
    One more reviewed finding on this topic
    • 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

    Use of composting toilets and related graywater systems in Oregon.

    • A composting toilet does not eliminate all household water; plumbing fixtures still need connection to an approved septic system.
    • If used with a graywater reuse system, both the graywater reuse system and septic system require a DEQ permit.
    • The graywater reuse system must be offline during wet-weather months or when discharges could create a public nuisance.
    • Material removed from a composting toilet must be buried under 12 inches of soil.
    • Buildings within a sewer district still need a sewer connection.

    burial depth for removed composting-toilet material: 12 inches · maximum reduced drainfield capacity mentioned by DEQ: two-thirds (The source says the drainfield may be approved for a smaller capacity, as much as two-thirds the size.)

    “Composting toilets don't eliminate all water generated in a home and therefore you will need to be hooked up to an approved wastewater treatment system.”
  • Well permitLimited

    Water-supply wells constructed, altered, converted, or abandoned by a landowner in Crook County, subject to Oregon statewide well-construction rules.

    • A landowner permit, permit fee, and bond or irrevocable letter of credit are required before work unless the landowner is a licensed and bonded Water Supply Well Constructor.
    • The application must include owner information, surety information, proposed location by township, range, section, tax lot if assigned, and street address, proposed use, type of work, and a Department-approved well design plan.
    • The bond or irrevocable letter of credit amount is $10,000.
    • The permit fee is $550.
    • Only the owner of record, an immediate family member of the owner of record, or a full-time employee of the owner of record whose main duties are other than well construction may operate a drilling machine under a landowner permit.
    • The permit expires six months after issuance.
    • A water well report is due within 30 days of permit expiration or within 30 days of well completion, whichever occurs first.
    • The Department may deny a permit for a health threat, health hazard, contamination source, or groundwater waste.

    landowner bond or irrevocable letter of credit: 10000 USD · permit fee: 550 USD · permit duration: 6 months · water well report deadline: 30 days (after permit expiration or well completion, whichever occurs first)

    “The Water Resources Commission requires a permit, permit fee, and bond or irrevocable letter of credit, for each water supply well constructed, altered, converted, or abandoned by a landowner, unless the landowner is a licensed and bonded Water Supply Well Constructor.”
  • 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.”
  • 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 for residential development in unincorporated Crook County.
  • Setbacks — Building and development setbacks in unincorporated Crook County.
  • Lot coverage — Lot coverage limits in unincorporated Crook County.
  • Building height — Building-height limits in unincorporated Crook County.
  • Camping on your land — Temporary camping on private land or in recreational vehicles in unincorporated Crook County.
1 more unanswered
  • Tiny homes

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 Crook County

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

Managed area

Groundwater is actively managed here, but a small household well is generally still available.

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 Crook County, Oregon

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

Crook County scores 62/100 on the Bolthole Index, a solid county profile. Its strengths: sparse surroundings — about 1,198 people within 15 miles and a stronger property-autonomy legal backdrop. Watch-outs: weak self-sufficiency basics: only 14″ of rain a year, in severe drought 36.2% of years and more administrative friction around building and land use.

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

Crook County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Crook County Community Development On-Site Septic Program (delegated authority from Oregon DEQ). 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 Crook County?

Living in an RV on your own land in Crook 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 Crook County, Oregon?

Land in Crook County runs about $1,808 per acre, based on the latest county data.

What is the water situation in Crook County?

Crook County gets about 14" of rain a year, with severe drought in roughly 36.2% of years. On water rights, Crook County lies in the Upper Deschutes Basin Groundwater Mitigation Program Area — Established 2002 (~4,500 sq mi); new groundwater uses are allowed but require mitigation for impacts to the Deschutes Scenic Waterway (not a categorical closure)..

How remote is Crook County?

A typical private-land location has about 1,198 people within 15 miles and 2,540,848 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

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

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How Crook compares in Oregon

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