Bolthole Index

Clatsop County, Oregon

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

56Index Score / 100
#23 of 36 in Oregon

Unincorporated Clatsop County, Oregon requires building permits for regulated residential work and applies county zoning to rural parcels.12 Clatsop County also issues septic permits for homes outside public-sewer service.3 Start with Land Use Planning before designing, then coordinate building and septic approvals with the county offices listed below.456

At a glance

Building permit
Required for regulated residential work in unincorporated areas1
Zoning
County zoning applies in unincorporated Clatsop County2
Septic
Clatsop County permits systems where public sewer is unavailable3
Owner-builder
A narrow state exemption exists, but a building permit is still required7
RV living
Limited settings; private-parcel occupancy depends on county authorization89
Tiny home
No distinct county occupancy rule was confirmed; ask Land Use Planning24
Well construction
A landowner permit, financial security and fee may apply10

Who to call

Building permits

Clatsop County Building Codes Division

Adopted building codes in unincorporated Clatsop County, electrical codes within the county's jurisdiction, permit applications, records and inspections

503-338-3697

[email protected]

800 Exchange Street, Suite 100, Astoria, OR 97103

Online permits →

Zoning

Clatsop County Land Use Planning Division

Zoning and land-use information, development permits, conditional uses, map amendments, variances, land divisions, and hazard-zone permit review in unincorporated Clatsop County

503-325-8611

[email protected]

800 Exchange St, Suite 100, Astoria, OR 97103

Septic permits

Clatsop County Onsite Septic

Onsite septic site evaluations, construction-installation permits and inspections for Clatsop County properties not served by public sewer

(503) 338-3687

[email protected]

800 Exchange Street, Suite 100, Astoria, Oregon 97103

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 Clatsop County, Oregon?

Yes. An owner or authorized agent must obtain the required permit before constructing, enlarging, altering, repairing, moving or changing the occupancy of a residential building or structure regulated by the Oregon Residential Specialty Code.1 Clatsop County Building Codes administers adopted codes in unincorporated areas and administers electrical codes across both incorporated and unincorporated parts of its jurisdiction.11 Permit exemptions can apply to particular work, so the safest first question for the Building Codes Division is whether the exact scope needs structural, mechanical, plumbing or electrical approval.1 A qualifying agricultural building may be exempt from the structural code, but the exemption does not cover a dwelling and does not erase electrical, plumbing or mechanical permit requirements.12 Oregon permit fees vary by trade and project basis, while local schedules and departmental fees may also apply.13

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

The Clatsop County Building Codes Division is the permit office for adopted building codes in unincorporated Clatsop County.11 Reach the division at 503-338-3697 or [email protected], or visit 800 Exchange Street, Suite 100, Astoria, Oregon 97103.5 The county directs applicants to Oregon ePermitting to view development and building applications and supporting documents, apply for available permits, and schedule inspections.5 Land-use applications do not follow that same online path, so contact the Land Use Planning Division at 503-325-8611 or [email protected] before treating a building application as zoning approval.54 Inside a city, the relevant city handles its own land-use questions; county planning staff handles potential uses of property in unincorporated Clatsop County.4

Does Clatsop County have zoning?

Yes. Clatsop County Land Use Planning applies the Land and Water Development and Use Code to unincorporated land and reviews development permits, conditional uses, map amendments, variances, partitions, subdivisions, and permits in geologic-hazard and flood-hazard zones.2 A parcel inside an incorporated city is governed by that city's land-use rules, so county zoning advice should not be carried across a city boundary.14 Parcel zoning matters because allowed dwellings, setbacks, lot standards and hazard review can differ by district.2 Oregon also sets conditional minimum parcel standards for designated resource land, including exclusive-farm-use and forest zones, but statutory exceptions and locally acknowledged standards can change the parcel-level answer.15 Clatsop County Land Use Planning is therefore the right first stop for a zoning designation and a written explanation of what that designation permits.4

How do septic permits work in Clatsop County?

Clatsop County's Onsite Septic Program issues permits for households that are not served by public sewer.3 For a new home system with projected flow below 2,500 gallons per day, obtain a favorable site evaluation before applying for the construction-installation permit; the issued permit is valid for one year.16 Installation may be performed by the property owner or a DEQ-licensed installer using approved materials and equipment.16 A pre-cover inspection is required unless the local onsite agent waives it, and the system may be covered only after a satisfactory inspection.17 Only about 0.8% of county land is rated without severe limitations for a conventional drain field, so a site evaluation can materially affect both feasibility and budget.18 Reach Clatsop County Onsite Septic at (503) 338-3687 or [email protected].6

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

Do not assume that owning rural land creates a general right to occupy an RV. Oregon protects residential RV occupancy only in specified settings, including qualifying parks with lawful utility connections, certain disaster placements, and a rural rental arrangement when the county elects to allow it.89 Clatsop County's confirmed RV-park rule limits a recreational vehicle to 30 days in any 60-day period and bars permanent RV occupancy in those parks.19 That park rule does not answer whether an RV can be occupied on an ordinary private parcel, so ask Land Use Planning about the parcel and proposed use.4 We could not confirm a distinct county occupancy category for tiny homes or a countywide minimum dwelling floor area. Manufactured dwellings are allowed only where the applicable zoning and placement standards permit them, with water, sewage, electrical, setback, space and access requirements.20

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

  1. Ask Land Use Planning to confirm the parcel's jurisdiction, zoning, allowed dwelling type, setbacks and any geologic- or flood-hazard review.4
  1. Determine water and wastewater service early; where public sewer is unavailable, obtain the county septic site evaluation before applying for a new-system construction permit.316
  1. If a landowner will construct a well, secure the required state landowner permit, fee and financial security before work unless a licensed and bonded Water Supply Well Constructor performs it.10
  1. Submit the required building application before regulated residential work begins; Oregon ePermitting supports applications, documents, status tracking and inspections for permits the participating jurisdiction offers online.121
  1. Complete required building and septic inspections before covering work or occupying the finished home.175

What should you check before buying land in Clatsop County?

Confirm the boundary between unincorporated county land and a city first, because Clatsop County administers rural zoning while each city answers for property within its limits.14 Ask Land Use Planning for the zoning district, allowed dwelling type, setbacks, access constraints and any geologic- or flood-hazard review tied to the parcel.4 Treat wastewater feasibility as a purchase condition: only about 0.8% of county land is rated without severe limitations for a conventional septic drain field.18 The county receives about 88.8 inches of precipitation annually, only about 17.5% of its land has a slope of 15% or less, and about 86.8% is wooded, which makes drainage, slope and clearing questions especially practical.222324 We could not confirm a countywide rule requiring every parcel to connect to a public or private water or sewer utility, so ask planning and the relevant service provider about the specific address.4

Watch-outs

  • An Oregon owner-builder exemption is narrow: it relaxes only specified structural-code requirements and does not eliminate the building permit.7
  • A composting toilet does not eliminate wastewater approvals; plumbing fixtures still need an approved septic connection, and property inside a sewer district still needs a sewer connection.25
  • Clatsop County's confirmed RV-park limits do not establish a private-parcel RV occupancy rule; ask Land Use Planning about the specific parcel and use.194

Sources

  1. 2023 Oregon Residential Specialty Code - Chapter 1, quoted and re-checked
  2. Land Use Planning, quoted and re-checked
  3. Onsite Septic Systems, quoted and re-checked
  4. Clatsop County Land Use Planning Division (clatsopcounty.gov)
  5. Clatsop County Building Codes Division (clatsopcounty.gov)
  6. Clatsop County Onsite Septic (clatsopcounty.gov)
  7. 2023 Oregon Residential Specialty Code - Chapter 1, quoted and re-checked
  8. Oregon Revised Statutes, ORS 197.493 (Oregon statewide rule), quoted and re-checked
  9. Oregon Revised Statutes, ORS 215.490 (Oregon statewide rule), quoted and re-checked
  10. Landowner Constructed Wells, quoted and re-checked
  11. Building Codes, quoted and re-checked
  12. Oregon Revised Statutes, Chapter 455 (Oregon statewide rule), quoted and re-checked
  13. Valuation and fee requirements by work/record type (Oregon statewide rule), quoted and re-checked
  14. Land Use Planning, quoted and re-checked
  15. Oregon Revised Statutes, Chapter 215 (Oregon statewide rule), quoted and re-checked
  16. Installing a New Septic System, quoted and re-checked
  17. Installing a New Septic System, quoted and re-checked
  18. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  19. Article 3 — Structure Siting and Development Standards, quoted and re-checked
  20. Article 3 — Manufactured Dwelling Park Development, quoted and re-checked
  21. Online building permit application process for homeowners (Oregon statewide rule), quoted and re-checked
  22. Annual precipitation: Bolthole Index county data
  23. Share of land at 15% slope or less: Bolthole Index county data
  24. Wooded share of land: Bolthole Index county data
  25. What do I do with the finished material? (Oregon statewide rule), quoted and re-checked

Written September 27, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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County locator

Clatsop County in Oregon

56
County map
Clatsop County highlighted among the Oregon counties · colored by Index score

How Clatsop County scores

Seclusion43100% ev.
Self-Sufficiency50100% ev.
Admin Boringness42100% ev.
Durability46100% ev.
Property Autonomy72100% ev.
Carry Cost51100% 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 →

$523kTypical home
0.7%Property tax
$9,702Land / acre
88.8"Annual rain
4.7% of yrsSevere drought
0 / yr (+0)Mid-century 100°F days
18.5 daysMid-century dry spell
3.44" (+7.3%)Mid-century 1-day rain
1.29×Wildfire change factor
100%Forward climate coverage
$1,291Home insurance / yr
4.2% / yrInsurance growth
0.76%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
18,467People within 30 min
2,759,850People within 2 hr
22,187Radius comparison (15 mi)
49.6People / sq mi
22.6%Federal land
17.5%Land at 15% slope or less
0.8%Septic soil without severe limits
3,714 acWorkable land screen
86.8%Wooded land
88.6 tonsBiomass / forest ac
50.1°FAvg temp

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Answers from the rulebook for Clatsop County

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

Clatsop County rules

  • Building code adoptedAdopted (with conditions)

    Clatsop County's adopted building-code program in unincorporated areas; electrical-code enforcement also extends to incorporated areas of the county's jurisdiction.

    • The County Building Codes Division administers and enforces all aspects of adopted codes in unincorporated areas.
    • Electrical codes are administered and enforced in both unincorporated and incorporated areas of the county's jurisdiction.
    • The adopted code incorporates the Oregon Structural, Mechanical, Plumbing, Electrical, and One- and Two-Family Dwelling Specialty Codes identified in Clatsop County Code 15.04.270, plus manufactured dwelling park/mobile home park rules, manufactured dwelling rules, recreational park and organizational camp rules, and the 1997 Uniform Code for the Abatement of Dangerous Buildings, except as modified by the jurisdiction.
    • The program is self-supported by revenue from construction-document review and permit issuance under a fee schedule approved by the Clatsop County Board of Commissioners.

    fee schedule adoption date: July 2022 (The Building Codes page identifies the current fee schedule as adopted July 2022.)

    “The Clatsop County Building Codes Division (BCD) administers and enforces all aspects of the adopted codes in the unincorporated areas”
  • County-wide zoningPresent (with conditions)

    County zoning and land-use regulation in unincorporated Clatsop County.

    • Clatsop County Land Use Planning applies the County's Land and Water Development and Use Code (LAWDUC) in unincorporated areas.
    • County land-use review includes development permits, conditional uses, comprehensive and zoning map amendments, variances, partitions, subdivisions, and permits in geologic hazard and flood hazard zones.
    • Properties within a city are subject to that city's rules and the applicant must contact the city directly.
    • Federal and tribal lands are excepted from the county page's statement that every inch of Oregon is planned and zoned.
    “The comprehensive plan and zoning ordinances are the guiding documents Clatsop County uses to make land use decisions.”
  • Local zoningVaries (with conditions)

    Aggregate local zoning across unincorporated Clatsop County and incorporated cities within the county.

    • In unincorporated areas, Clatsop County Land Use Planning administers LAWDUC and county zoning-related review.
    • For land within a city, the relevant city administers its own local land-use rules; the county directs applicants to contact that city directly.
    • The aggregate conclusion varies by jurisdiction because county rules apply outside cities while city rules apply within city boundaries.
    • Federal and tribal lands are excluded from the county's general statement that every inch of Oregon is planned and zoned.
    “You must contact the city in which the property is located for information about zoning, getting a development permit or for other use information.”
  • Living in an RVLimited

    Recreational-vehicle occupancy in county-regulated recreation vehicle parks in unincorporated Clatsop County.

    • The park must be in an area where it is permitted.
    • No recreational vehicle may remain in the park more than 30 days in any 60-day period.
    • The park may not use accommodations for mobile homes or recreational vehicles used for permanent occupancy.
    • One mobile home unit may be used only by the park manager or caretaker.
    • The park must provide safe and sanitary accommodations and adequate utility services.

    maximum stay: 30 days in any 60-day period

    “No recreation vehicle shall remain the park for more than thirty (30) days in any sixty (60) day period. No habitable vehicle, which is not a recreation vehicle, shall be allowed in the park for any period with the exception of one mobile home unit for the exclusive use of the park manager and/or caretaker.”
  • Manufactured homesAllowed (with conditions)

    Manufactured and prefabricated dwellings for residential use in county-regulated manufactured dwelling parks and other county zoning districts where manufactured dwellings are listed as permitted uses.

    • Manufactured dwelling parks must comply with applicable state standards and county standards.
    • A manufactured dwelling placement permit is required; the fee depends on whether the installation is single-, double-, or triple-wide, plus a 12-percent state surcharge and 3-percent technology fee.
    • If the foundation is over 2 feet high, a foundation plan review and separate building permit are required; the plan review fee is 75 percent of the calculated building permit fee.
    • For a manufactured dwelling park, each individual structure must obtain zoning review and permits before construction; park approval does not approve the individual dwelling or structures.
    • Sewage, water, electrical, setback, space, and access requirements apply.

    foundation height threshold: > 2 feet (Triggers foundation plan review and separate building permit) · state surcharge: 12 percent · technology fee: 3 percent

    “Manufactured dwellings and prefabricated dwellings for residential use.”
  • Who permits septicCounty

    The onsite septic program serving Clatsop County households that are not served by public sewer.

    • The program operates under Oregon DEQ onsite wastewater requirements and applies to onsite septic systems rather than public sewer service.
    “Clatsop County's Onsite Septic Program issues septic system permits for households that are not served by public sewer.”
  • Septic permitRequired

    Installation of a septic system for a home or commercial system with projected sewage flow less than 2,500 gallons per day in Clatsop County.

    • A favorable site evaluation report is required before applying for the construction-installation permit.
    • The application must include required fees, exhibits, construction plans, and information about approved property uses.
    • The permit is valid for one year.
    • A construction-installation permit is issued within 20 days of receiving a completed application.
    • Design changes require prior county approval.
    • Systems must be constructed by the property owner or a DEQ-licensed installer using DEQ-approved materials and equipment.
    • Larger or more complex systems require contacting the Clatsop County Onsite Septic System Program for permit requirements.

    projected sewage flow threshold: < 2500 gallons per day (The source states the ordinary construction-installation permit is usually for systems with projected sewage flow less than 2,500 gallons per day.) · permit validity: 1 year (The permit may be renewed or reinstated for an additional fee if construction takes longer.)

    “A construction-installation permit is required to install any septic system that has a projected sewage flow of less than 2,500 gallons per day. Permits are valid for one (1) year.”
  • Septic inspectionRequired

    Construction and installation of septic systems in Clatsop County before the installation is covered with soil.

    • A pre-cover inspection is required unless waived by the local onsite agent.
    • Complex systems, including sand filter systems, may require inspections at various construction stages as specified in the permit.
    • The installer must provide an as-built plan, materials list, and system certification.
    • The local onsite agent will conduct or waive the inspection within seven days after receiving the completed inspection form.
    • The installation may be covered only after a satisfactory inspection; a certificate of satisfactory completion is then issued before use begins.

    inspection response period: 7 days (The local onsite agent may conduct or waive the inspection within this period.)

    “A “pre-cover” inspection (before it is covered with soil) of the installation is required unless waived by the local onsite agent.”
  • Off-grid sanitationLimited

    Onsite sanitation using a septic tank and drain field or another approved alternative system where a residential location is not served by public sewer.

    • The parcel must be sufficiently large to comply with Oregon DEQ sewage-disposal requirements and continue relying on onsite disposal.
    • The county's onsite septic program issues permits for households not served by public sewer.
    • Site, soil, water-table, surface-water, well, property-size, and sewer-availability conditions affect system suitability.
    • Septic permitting, construction, inspection, and applicable DEQ rules still apply.
    “In a location that will not be served by a public sewer, a lot or parcel shall have sufficient size to permit compliance with the requirements of the Department of Environmental Quality for sewage disposal by septic tank and drain field or other alternative system and permit continued reliance on that method of sewage disposal.”

Oregon rules that apply here

  • Building permitRequired

    Construction, enlargement, alteration, repair, movement, or change of occupancy of residential buildings and structures regulated by the Oregon Residential Specialty Code in Clatsop County, including applicable unincorporated areas administered by Clatsop County.

    • The owner or authorized agent must apply to the building official and obtain the required permit before the regulated work is performed.
    • The rule applies to work regulated by the Oregon Residential Specialty Code; permit exemptions in Section R105.2 and locally applicable rules may apply.
    • Clatsop County administers and enforces adopted codes in unincorporated areas; incorporated municipalities may administer their own building programs.
    “Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move or change the occupancy of a building or structure [...] 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 residences and adjacent auxiliary structures in Clatsop County that are constructed entirely by the owner, or by the owner and unpaid friends or relatives, where the owner intends to occupy the structures.
      “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.”
  • Zoning districtsPublished (with conditions)

    Statewide Oregon zoning data published by the Department of Land Conservation and Development; the data represents local zoning and does not itself replace local zoning ordinances or maps.

    • The source identifies the dataset as Statewide Zoning - 2023.
    • The source provides downloads through GEOHub and a GIS service.
    • Local governments remain the relevant authorities for parcel-level zoning determinations and ordinance administration.

    dataset year: 2023

    “Statewide Zoning - 2023 Downloads available from GEOHub Service”
  • 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.”
  • 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”
  • Well permitLimited

    Construction, alteration, conversion, or abandonment of a water-supply well by a landowner in Clatsop County under Oregon statewide well-construction rules.

    • A landowner permit, permit fee, and bond or irrevocable letter of credit are required before work begins unless the landowner is a licensed and bonded Water Supply Well Constructor.
    • The landowner permit requires a $10,000 bond or irrevocable letter of credit and a $550 permit fee.
    • The permit expires six months after issuance.
    • A water well report is due within 30 days after permit expiration or well completion, whichever occurs first.
    • The Department may deny a permit for health threats, hazards, contamination, or groundwater-resource waste.
    • This claim addresses landowner well-construction permits; separate water-right permitting may apply to groundwater use.

    landowner bond or irrevocable letter of credit: 10000 USD · landowner permit fee: 550 USD · permit term: 6 months

    “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.”
  • Mandatory utility hookupSewer (with conditions)

    A building located within an Oregon sewer district, including a building using a composting toilet.

    • The source specifically addresses buildings within a sewer district.
    • A composting toilet does not eliminate the sewer-connection requirement.
    “What if my building is within a sewer district? Your building will still need a sewer connection.”
  • 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.”
  • Subdividing landRegulated (with conditions)

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

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

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

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

    Oregon state building-code permit fees and fee methodologies, including residential and commercial electrical, plumbing, mechanical, and structural work.

    • Residential electrical new-construction fees are calculated by square footage or, for alterations and repairs, by services, feeders, and branch circuits.
    • Residential plumbing new-construction fees are based on kitchens and bathrooms; alteration and repair fees are based on fixtures.
    • Residential mechanical fees are calculated per appliance or equipment.
    • Residential structural new-construction fees use the ICC Valuation Table current as of April 1 of each year; alteration and repair fees use fair market value as determined by the building official.
    • Commercial plumbing fees are based on fixtures; commercial mechanical fees use equipment valuation and installation costs; commercial electrical fees use services, feeders, and branch circuits.
    • Commercial structural new-construction valuation is the greater of the ICC Valuation Table current as of April 1 of each year or the applicant's stated value; otherwise the building official determines valuation when the construction or occupancy type does not fit the table.
    • Local fee schedules and additional departmental fees may also apply.

    residential structural valuation table date: April 1 of each year · commercial structural valuation: greater of ICC Valuation Table or applicant-stated value (when construction is new/addition) · alteration or repair valuation: fair market value determined by building official (residential structural work)

    “Fees calculated per appliance/equipment. [...] Fees based on fair market value as determined by the building official.”
  • Permit processPublished (with conditions)

    Online homeowner building-permit applications through Oregon ePermitting in participating cities and counties.

    • Participation by cities or counties is voluntary.
    • Each participating city or county determines which permits are available for online sale.
    • The applicant creates an account, downloads the homeowner acknowledgement form, searches for the work-site address, enters owner contact details, uploads the form, and enters work details.
    • After submission, the local city or county contacts the applicant when fees are ready to be paid and when the permit has been issued.
    • Applicants may track status, pay fees, upload documents, schedule inspections, and review inspection results after submission.
    “Participation by cities or counties is voluntary and each participating city or county determines which permits are available for sale online.”
  • 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 floor area or dwelling size for residential dwellings in unincorporated Clatsop County.
  • Tiny homes — Occupancy of tiny homes on private land in unincorporated Clatsop County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Clatsop County, Oregon

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

Clatsop County scores 56/100 on the Bolthole Index, a solid county profile. Its strengths: a stronger property-autonomy legal backdrop. Watch-outs: more administrative friction around building and land use.

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

Clatsop County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Clatsop County Environmental Health / Community Development - Onsite Septic Program. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

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

Living in an RV on your own land in Clatsop County is limited to specific cases: Recreational-vehicle occupancy in county-regulated recreation vehicle parks in unincorporated Clatsop County. The park must be in an area where it is permitted. No recreational vehicle may remain in the park more than 30 days in any 60-day period. Confirm with the county before relying on it.

How much does land cost in Clatsop County, Oregon?

Land in Clatsop County runs about $9,702 per acre, based on the latest county data.

What is the water situation in Clatsop County?

Clatsop County gets about 88.8" of rain a year, with severe drought in roughly 4.7% of years.

How remote is Clatsop County?

A representative private-land location has about 18,467 people within a 30-minute drive and 2,759,850 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

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

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How Clatsop compares in Oregon

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