Lane County, OR Building Permits, Zoning & Septic

Unincorporated Lane County, Oregon requires a building permit for most construction, issued by the Land Management Division's Building Program under the statewide Oregon Residential Specialty Code¹. The county also zones unincorporated land under Lane Code Chapter 10 and issues its own septic permits rather than routing them through the state²³. Oregon exempts most owner-builders from contractor licensing, though you still need permits, and for certain structural items must file paperwork with the county clerk⁴.

At a glance

Building permit: Required, issued by the Land Management Division's Building Program¹
Zoning: Yes, countywide in unincorporated Lane County under Lane Code Chapter 10²
Septic permits: Lane County itself issues them, not the state³
Owner-builder exemption: Yes, from contractor licensing; permits are still required⁴
RV on your land: Limited: allowed only as a rental alongside an owner-occupied home, if the county opts in⁵
Manufactured or tiny home: One permanent dwelling per lot or parcel, of any size⁶
Septic soil suitability: 4.7% of soils rate favorably for a conventional drain field⁷
Effective property tax rate: 0.9% (about $3,417/year on the typical home)⁸⁹

Who to call

Building permits

Lane County Land Management Division - Building Program

Reviews plans, issues residential building permits and performs inspections for construction in unincorporated Lane County

541-682-4651

3050 North Delta Hwy, Eugene, OR 97408

Zoning

Lane County Land Management Division - Land Use Planning & Zoning

Administers Lane Code Chapter 10 zoning and land-use planning approvals for unincorporated Lane County

541-682-3577

3050 North Delta Hwy, Eugene, OR 97408

Septic permits

Lane County Land Management Division - On-Site Wastewater (Subsurface Sanitation) Program

Regulates and permits onsite wastewater (septic) systems for residential and commercial properties not served by community sewer in Lane County

541-682-3754

3050 North Delta Hwy, Eugene, OR 97408

Contact details are copied from each office’s official page and were checked against it on September 24, 2026.

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

Yes. Lane County requires building permits for construction, issued by the Building Program within the Land Management Division, enforcing the statewide Oregon Residential Specialty Code¹. Certain projects need Land Use Planning approval, and sometimes sanitation approval, before they're even eligible for a building permit¹⁰. A structure the Planning Department approves as an agricultural building or equine facility is exempt from the structural permit requirement, though other land-use, zoning, site, fire and sanitation rules still apply to it¹¹. Call the Building Permit Information Line at 541-682-4651 with questions¹².

Who is the Lane County building department, and how do you reach them?

Lane County's Land Management Division runs the Building Program from its Customer Service Center at 3050 North Delta Hwy, Eugene, and its Building Permit Information Line is 541-682-4651¹². Homeowners apply online through ePASS, while contractors use ePermitting for residential mechanical, electrical and plumbing permits, and the county says a residential or commercial combo permit review can take up to 8 weeks depending on the project¹³. The county raised its Land Management Division fee schedule in September 2026, so confirm current fees before you budget¹⁴.

Does Lane County have zoning?

Yes. Lane Code Chapter 10 divides unincorporated Lane County into zoning districts under a comprehensive plan, based on ORS Chapter 215 and the county's Home Rule Charter². That ordinance only reaches unincorporated land; it does not establish zoning inside any of Lane County's cities¹⁵. Most rural residential zoning under Lane Code 16.290 allows only one permanent single-family or manufactured dwelling per lot or parcel, regardless of its size⁶. Reach the Land Use/Zoning Information Line at 541-682-3577 to find out which district covers a specific parcel¹⁶.

How do septic permits work in Lane County?

Septic permitting in Lane County is a county function, not a state one: the Land Management Division's On-Site Wastewater program regulates the installation, repair, alteration and maintenance of septic systems on residential and commercial properties without community sewer³. Apply to the Subsurface Sanitation Program for a permit before you begin construction, and note that final Land Use Planning clearance is required before the program can accept your septic or building permit applications¹⁰. A new system needs an approved Site Evaluation before an Install permit can be issued¹⁷. Only 4.7% of Lane County's soils rate favorably for a conventional septic drain field in the USDA soil survey, so a site evaluation matters a great deal here, and an alternative system is common⁷. Elsewhere in Oregon, the state directly permits septic in just three counties; Lane is one of the other 33 where the local jurisdiction, not the state, does the permitting¹⁸. Once your system is installed, notify Subsurface Sanitation staff at the appropriate construction stages, and get all sanitation inspections done before your final building inspection¹⁹. Reach the On-Site Wastewater Information Line at 541-682-3754²⁰.

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

An RV is not automatically allowed as a residence on rural land in Lane County. Oregon law lets a county opt to allow one residential-use recreational vehicle on a rural parcel, but only where an owner-occupied single-family home already sits on that same property as the owner's primary residence, there are no other dwellings, and the RV is rented to a tenant under conditions the county can regulate⁵. Separate statewide protection covers an RV in a manufactured-dwelling or RV park connected to utilities, or on a lot with a home a disaster made uninhabitable, for up to five years²¹. A permanent tiny home has two paths here: site-built under the Small Home Specialty Code with the same permitting as a full-size dwelling, or a HUD-compliant manufactured home with a Lane County manufactured-home permit, and either way it must meet setbacks for property lines, roads, floodplain and riparian areas²². Most parcels that already hold a dwelling can't add a second tiny home, and permanent tiny-home villages aren't allowed in unincorporated Lane County outside county-run post-disaster transitional housing²².

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

Confirm your parcel's zoning district under Lane Code Chapter 10 with the Land Use/Zoning Information Line before you plan your project²¹⁶.
Get any required Land Use Planning approval and sanitation approval; some projects cannot even apply for a building permit until planning clears them¹⁰.
If your lot needs a septic system, get an approved Site Evaluation and Install permit from the On-Site Wastewater program before construction begins²⁰¹⁷.
If you're acting as your own contractor, remember Oregon's owner-builder exemption only covers certain structural items like ceiling height and room size, and if your home doesn't meet those exempted items you must file the permit with the county clerk for the deed record⁴²³.
Apply for your building permit online through ePASS as a homeowner, or through ePermitting if you're a licensed contractor doing mechanical, electrical or plumbing work¹³.
Notify Subsurface Sanitation staff and your building inspector at each required construction stage, and finish all sanitation inspections before your final building inspection¹⁹.
Get your certificate of occupancy before moving in; Oregon bars occupying a new dwelling until the building official issues one²⁴.

What to check before you buy land in Lane County

With only 4.7% of Lane County's soils rating favorably for a conventional septic drain field, get a site evaluation early if a parcel isn't on community sewer⁷³. If the land is zoned exclusive farm use or designated forestland, Oregon sets minimum lot sizes of 80 acres for farm use, 160 acres if it's designated rangeland, and 80 acres for forestland, so a smaller "rural" parcel may not be legally dividable the way you'd expect²⁵. A well for ordinary household use is generally exempt from Oregon's water-right permitting up to 15,000 gallons a day, but larger uses need a state water-right permit²⁶. Lane County is heavily wooded, at 86.7% of its land, and federal land covers 62.6% of the county, so check whether a parcel borders public land and what that means for access²⁷²⁸. Property taxes run an effective 0.9% rate, with a median bill around $3,417 a year on the typical home⁸⁹.

Watch-outs

We could not confirm exactly how driveway or access permits work for county roads in Lane County during this research; call the Land Management Division at 541-682-4651 before finalizing site plans that involve a new or modified driveway¹².
Lane County allows only one permanent dwelling per lot or parcel in most rural residential zoning, so a parcel with an existing home generally cannot add a second house, manufactured home or permanent tiny home⁶.
An RV is not automatically allowed as a residence on rural Lane County land; it takes a specific rental arrangement alongside an owner-occupied primary home, or one of the narrower statewide exceptions, before any rule protects it⁵²¹.

Sources

Written September 24, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

How Lane County scores

Seclusion61100% ev.

Self-Sufficiency50100% ev.

Admin Boringness42100% ev.

Durability50100% ev.

Property Autonomy72100% ev.

Carry Cost45100% 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 →

$464kTypical home

0.9%Property tax

$12,788Land / acre

64.1"Annual rain

18.1% of yrsSevere drought

0.8 / yr (+0.7)Mid-century 100°F days

28.5 daysMid-century dry spell

2.63" (+5.2%)Mid-century 1-day rain

1.22×Wildfire change factor

100%Forward climate coverage

$1,140Home insurance / yr

3.3% / yrInsurance growth

0.5%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

526,955People within 2 hr

32,024Radius comparison (15 mi)

83.7People / sq mi

62.6%Federal land

39.7%Land at 15% slope or less

4.7%Septic soil without severe limits

106,156 acWorkable land screen

86.7%Wooded land

141 tonsBiomass / forest ac

50.2°FAvg temp

Answers from the rulebook for Lane County

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

Lane County rules

County-wide zoningPresent (with conditions)
Land-use zoning administered under Lane County Code Chapter 10 in the unincorporated portions of Lane County.
- The ordinance is based on ORS Chapter 215 and the Lane County Home Rule Charter.
- The chapter provides procedures for dividing unincorporated portions of Lane County into districts and requirements pertaining to those districts in accordance with a comprehensive plan.
“dividing the unincorporated portions of Lane County into districts”
Lane County Land Use and Development Code, Chapter 10 ↗Re-checked Sep 24, 2026
Local zoningPresent (with conditions)
County zoning rules for land in Lane County outside incorporated municipal limits, as described by Lane County Code Chapter 10.
- The cited chapter expressly addresses the unincorporated portions of Lane County and creates districts and requirements under the county comprehensive plan.
- This claim does not establish that Lane County administers zoning inside incorporated municipalities.
“dividing the unincorporated portions of Lane County into districts”
Lane County Land Use and Development Code, Chapter 10 ↗Re-checked Sep 24, 2026
Camping on your landLimited
Temporary recreational camping in Lane County rural campground uses governed by Lane Code Chapter 16.
- A campground is for short-term recreational purposes.
- In the specified F1, F-2, and EFU-RCP zones, campground use is for overnight temporary vacation, recreational, or emergency purposes and not residential purposes.
- Space may be provided for tents, campers, recreational vehicles, and motor homes.
- Applicable zoning, land-use, sanitation, and other Lane Code requirements still apply.
“an area devoted to overnight temporary use for vacation, recreational or emergency purposes, but not for residential purposes”
Lane Code Chapter 16 Definitions ↗Re-checked Sep 24, 2026
Tiny homesLimited
Permanent tiny-home occupancy in unincorporated Lane County.
- A permanent tiny home must be site-built or a manufactured home.
- A site-built tiny home must follow the Small Home Specialty Code and is subject to the same plan review, permit, inspection, and contractor-licensing requirements as a permanent dwelling.
- A tiny manufactured home must comply with HUD construction and safety standards and requires a Lane County manufactured-home permit.
- All tiny homes must comply with land-use laws and setbacks for property lines, roads, floodplain, and riparian areas.
- Most county lands allow only one residence, so a parcel with an existing dwelling generally cannot qualify for another tiny home.
- Permanent tiny-home villages are not permitted in unincorporated areas, except for transitional units established by the County after a disaster.
“To permanently place a tiny home, applicants have two options: site built construction, or manufactured home.”
Tiny Homes - Lane County ↗Re-checked Sep 24, 2026
Manufactured homesAllowed (with conditions)
Permanent manufactured-dwelling occupancy on lots or parcels governed by Lane Code LC 16.290 in unincorporated Lane County.
- LC 16.290 applies to the rural residential zoning context described in the Lane Code.
- No more than one permanent single-family dwelling or manufactured dwelling may be placed, altered, or maintained on a lot or parcel of any size under LC 16.290(2)(a).
- The manufactured dwelling remains subject to Lane Code general provisions, building permits, inspections, sanitation, and other applicable requirements.
maximum permanent manufactured dwelling under LC 16.290(2)(a): 1 dwelling per lot or parcel
“not more than one permanent single-family dwelling or manufactured dwelling on a lot or parcel of any size.”
Lane Code Chapter 16: Rural Residential ↗Re-checked Sep 24, 2026
Who permits septicCounty
Residential and commercial onsite wastewater disposal systems in Lane County that are not served by community sewer systems.
- The Lane County On-Site Wastewater program regulates installation, repair, alteration, and maintenance of septic systems.
- Certain projects require Land Use Planning approval before eligibility for an onsite wastewater permit.
“The mission of Lane County's On-Site Wastewater program is to regulate the installation, repair, alteration, and maintenance of onsite wastewater disposal systems (septic systems) for both residential and commercial properties not served by community sewer systems.”
On-Site Wastewater - Lane County ↗Re-checked Sep 24, 2026
Septic permitRequired
New septic systems and specified septic-system repairs, alterations, bedroom increases, and added sanitation flows in Lane County.
- Before construction, applicants must apply to the Subsurface Sanitation Program for a septic permit.
- Final planning clearance approval is required before the Subsurface Sanitation Program can accept septic and building permit applications.
- A new-system Install permit requires an approved Site Evaluation.
- A separate installation permit is required to construct a system after site evaluation.
- An Authorization permit is required for a net increase in bedrooms or additional flows requiring sanitation review.
- City referral forms may be required when property is within a city Urban Growth Boundary.
- Lane County announced an on-site sanitation fee schedule increase effective September 1, 2026.
“Before you are ready to begin construction, apply to the Subsurface Sanitation Program for a septic permit.”
General Information - Lane County ↗Re-checked Sep 24, 2026
Septic inspectionRequired
Septic-system installation and subsurface construction covered by a Lane County installation permit.
- The installation permit contains the necessary inspection schedule.
- The permit holder must notify Subsurface Sanitation staff at appropriate construction stages.
- A Certificate of Satisfactory Completion and Final Inspection Report is issued after completion and approval.
- For final septic inspection, the permit holder must submit the installation record form after subsurface construction is complete.
- All sanitation inspections must be completed before the final building inspection.
- Septic inspections do not cover sanitary sewer inspections.
“Yes. Your installation permit will contain a schedule of necessary inspections. At the appropriate stages of construction notify the Subsurface Sanitation staff.”
Inspections - Lane County ↗Re-checked Sep 24, 2026
Off-grid sanitationAllowed (with conditions)
Onsite wastewater disposal systems serving residential or commercial properties in Lane County that are not served by community sewer systems.
- The system is subject to Lane County regulation.
- Applicable site evaluation, sanitation permit, installation, inspection, planning-clearance, and system-design requirements apply.
- The county page does not establish permission for unpermitted or noncompliant sanitation systems.
“An Install permit is for the construction of a new septic system to serve a new structure and requires an approved Site Evaluation”
On-Site Wastewater - Lane County ↗Re-checked Sep 24, 2026
Agricultural exemptionAvailable (with conditions)
A structure approved by the Lane County Planning Department as an agricultural building or equine facility.
- The structure must be approved by the Lane County Planning Department as an agricultural building or equine facility.
- The exemption is from the structural permit requirement only; other land-use, zoning, site, fire, sanitation, and applicable permit requirements may still apply.
- Lane County states that permits are otherwise required for all work covered by the County Building Codes unless specifically exempted by adopted County code.
“A structure approved by the Planning Department as an “agricultural building” or “equine facility” is exempt from the structural permit requirement.”
Lane Code Chapter 11 - Buildings ↗Re-checked Sep 24, 2026
Subdividing landRegulated (with conditions)
Partitions and subdivisions in Lane County outside the Eugene and Springfield urban growth boundaries and outside the incorporated limits of other small cities.
- All subdivision and partition proposals must conform to ORS Chapter 92 and Lane County Surveyor's Office policies.
- No new lot or parcel created through subdivision or partition may be conveyed without prior plan and final plat approval by the Director.
- No subdivision or partition plat may be filed at Lane County Deeds and Records without the Director's signature and legally required signatures.
- All subdivision or series partition proposals must demonstrate adequate potable water, septic-system capability, and electrical access.
“All Subdivision and Partition proposals must conform to state regulations in Oregon Revised Statute (ORS) Chapter 92”
Lane Code Chapter 13 - Land Divisions and Property Line Adjustments ↗Re-checked Sep 24, 2026
Driveway accessRequired
Constructing a driveway serving a site accessed from a Lane County road or street, but only for the portion of the driveway within the public right-of-way.
- A Lane County Public Works Facility permit is required before construction of the covered driveway portion.
- The applicant should flag or otherwise mark the exact proposed driveway location.
- A Public Works area foreman determines how entrance to and from the county road can be made safely and whether a driveway culvert is required.
- After permit approval, the driveway must be constructed in accordance with the permit provisions.
- A Public Works inspector checks the installation during construction if requested and performs a final inspection after completion.
- The source does not establish requirements for access from roads administered by another authority.
“from a county road or street, you will need a Facility permit from the County Public Works Department to construct a driveway.”
Building & Manufactured Dwelling Placement Permits - Lane County ↗Re-checked Sep 25, 2026
One more reviewed finding on this topic
- Limited — Vehicle access and driveway aprons on Lane County road rights-of-way.
  “Vehicle access must be limited to existing primary driveway aprons. [...] Driveway apron permits are only approved via the Facility Permit process.”
  Prohibited Activities In the Road Right-of-way - Lane County ↗Re-checked Sep 25, 2026
Short-term rentalsLimited
Bed-and-breakfast accommodations and comparable temporary overnight accommodations in the Lane County Rural Commercial Zone.
- No more than one bed-and-breakfast accommodation is allowed on a lot or parcel and it must be in a lawfully existing dwelling or manufactured dwelling.
- A bed-and-breakfast may have no more than five sleeping rooms.
- Use is limited to travelers or transients on a daily or weekly period not exceeding 29 consecutive days.
- A morning meal is customary.
- Other overnight accommodations in the Rural Commercial Zone have separate limits and conditions, including no more than 15 guest rooms and temporary occupancy for specified fishing or hunting purposes.
maximum bed-and-breakfast sleeping rooms: <= 5 rooms · maximum stay: <= 29 consecutive days
“A bed and breakfast accommodation shall have no more than five sleeping rooms provided on a daily or weekly period, not to exceed 29 consecutive days, for the use of travelers or transients for a charge or fee.”
Lane Code Chapter 16.291 Rural Commercial Zone ↗Re-checked Sep 24, 2026
Permit feesPublished (with conditions)
Lane County Land Management Division land-use planning, onsite sanitation, code-enforcement, and building-program permit fees.
- The county states that fee increases approved on July 14, 2026 take effect September 1, 2026.
- Updated fee schedules are posted; the building fee calculator still has 2025 fees.
- Some schedules list base permit fees, with applicable surcharges and fees added to the base fee.
fee schedule effective date: 2026-09-01
“The updated fee schedules are now posted.”
LMD Fees ↗Re-checked Sep 24, 2026
Permit processPublished (with conditions)
Lane County building permit applications.
- Homeowners apply through ePASS.
- Contractors use ePermitting for residential mechanical, electrical, residential plumbing, and commercial electrical permits; other permits use ePASS.
- Applications may be submitted in person, by mail, or by email.
- Residential or commercial combo permit review may take up to 8 weeks depending on various factors.
maximum stated review time: <= 8 weeks (Residential or commercial combo permits; depends on various factors.)
“Home owners: use the new ePASS website. [...] When submitting for a residential or commercial combo permit, the review process may take up to 8 weeks depending on various factors.”
Land Management Frequently Asked Questions ↗Re-checked Sep 24, 2026
Building permitRequired
Lane County requires building permits, issued by the Building Program within the Land Management Division enforcing the statewide Oregon Residential Specialty Code.
Lane County Land Management Division - Building Safety ↗Scouted from the county site, not yet independently re-checked

Oregon rules that apply here

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”
2023 Oregon Residential Specialty Code - ORS 455.320 reprinted ↗Re-checked Sep 12, 2026
Building code adoptedAdopted (with conditions)
Commercial construction, reconstruction, alteration, and repair governed by the Oregon Structural Specialty Code statewide.
- The 2025 Oregon Structural Specialty Code is based on the 2024 International Building Code, International Fire Code, and International Existing Building Code.
- Administrative provisions are effective and mandatory October 1, 2025.
- Construction provisions were effective October 1, 2025 with a six-month phase-in period and became mandatory April 1, 2026.
- During the phase-in period, use of either the 2022 OSSC or 2025 OSSC was permitted.
administrative provisions effective and mandatory: 2025-10-01 · construction provisions effective: 2025-10-01 (six-month phase-in period) · construction provisions mandatory: 2026-04-01
“Construction provisions: [...] Mandatory April 1, 2026”
Oregon Structural Specialty Code adoption ↗Re-checked Sep 12, 2026
2 more reviewed findings on this topic
- Adopted (with conditions) — Oregon State Building Code specialty codes administered statewide by the Oregon Building Codes Division.
  “The Building Codes Division adopts, amends, and interprets specialty codes that make up the Oregon State Building Code.”
  Oregon State Building Code ↗Re-checked Sep 12, 2026
- Adopted (with conditions) — Construction, reconstruction, and repair of one- and two-family dwellings and townhouses governed by the Oregon Residential Specialty Code statewide.
  “2023 Oregon Residential Specialty Code (ORSC) [...] Based on 2021 International Residential Code (IRC)”
  Residential Structures Code Program ↗Re-checked Sep 12, 2026
Certificate of occupancyRequired
New residential dwellings, townhouses, and changes in character, use, or occupancy subject to the Oregon Residential Specialty Code, including applicable Lane County projects.
- A building or structure may not be used or occupied, in whole or in part, until the building official issues a certificate of occupancy for a change in character, use, or occupancy.
- Certificates of occupancy are not required for work exempt from permits under R105.2.
- Certificates of occupancy are not required for accessory buildings or structures.
- Before occupancy of a new residential dwelling or townhouse, the building official must issue a certificate of occupancy unless a temporary certificate of occupancy is issued.
- 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.
- The certificate may be revoked in writing if the dwelling or townhouse violates applicable law posing a health or safety threat.
“A building or structure shall not be used or occupied in whole or in part [...] until the building official has issued a certificate of occupancy”
2023 Oregon Residential Specialty Code - Chapter 1 ↗Re-checked Sep 24, 2026
Zoning districtsPublished (with conditions)
Statewide Oregon zoning data published by the Department of Land Conservation and Development; the data represents local zoning and does not itself replace local zoning ordinances or maps.
- The source identifies the dataset as Statewide Zoning - 2023.
- The source provides downloads through GEOHub and a GIS service.
- Local governments remain the relevant authorities for parcel-level zoning determinations and ordinance administration.
dataset year: 2023
“Statewide Zoning - 2023 Downloads available from GEOHub Service”
Maps, Data and Tools ↗Re-checked Sep 12, 2026
Minimum lot sizeSpecified
Lots or parcels in Oregon resource-land zones covered by ORS 215.780: exclusive farm use land and designated forestland.
- The stated standards apply except as provided in ORS 215.780(2).
- A county may adopt a lower minimum lot or parcel size in specified circumstances if it demonstrates compliance to the Land Conservation and Development Commission or satisfies one of the statutory exceptions.
- The statute states that a county with an acknowledged smaller minimum lot or parcel size described in ORS 215.780(5) need not comply with subsection (2).
minimum lot or parcel size for exclusive farm use land not designated rangeland: >= 80 acres (Subject to ORS 215.780(2) and (5).) · minimum lot or parcel size for exclusive farm use land designated rangeland: >= 160 acres (Subject to ORS 215.780(2) and (5).) · minimum lot or parcel size for designated forestland: >= 80 acres (Subject to ORS 215.780(2) and (5).)
“Except as provided in subsection (2) of this section, the following minimum lot or parcel sizes apply to all counties: (a) For land zoned for exclusive farm use and not designated rangeland, at least 80 acres; (b) For land zoned for exclusive farm use and designated rangeland, at least 160 acres; and (c) For land designated forestland, at least 80 acres.”
Oregon Revised Statutes, Chapter 215 ↗Re-checked Sep 12, 2026
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”
Oregon Revised Statutes, ORS 215.490 ↗Re-checked Sep 12, 2026
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”
  Oregon Revised Statutes, ORS 197.493 ↗Re-checked Sep 12, 2026
Accessory dwellingsLimited
Accessory dwelling units in areas within an urban growth boundary zoned for detached single-unit dwellings in a city with population greater than 2,500 or a county with population greater than 15,000.
- The local government must allow at least one accessory dwelling unit for each detached single-unit dwelling.
- Local regulations may address siting and design but may not include owner-occupancy requirements for the primary or accessory structure or requirements to construct additional off-street parking.
- Local governments may regulate vacation occupancies to require owner-occupancy or off-street parking.
city population threshold: > 2500 persons · county population threshold: > 15000 persons · minimum ADUs per detached single-unit dwelling: >= 1 unit
“A city with a population greater than 2,500 or a county with a population greater than 15,000 shall allow”
Oregon Revised Statutes, ORS 197A.425 ↗Re-checked Sep 12, 2026
Well permitLimited
Use of well water under Oregon water-right permitting requirements, including use in Lane County.
- A water-right permit or license is generally required to use water from underground sources.
- Domestic water use from a well not exceeding 15,000 gallons per day is identified as an exemption.
- Other statutory exemptions may apply.
domestic well use exemption threshold: <= 15000 gallons per day (domestic water use)
“With some exceptions, a water right permit or license from the Oregon Water Resources Department (Department) is required to use water from any source in the State of Oregon—whether it is underground, from lakes or streams, or from a reservoir. A few examples of uses that are exempt from this requirement include emergency fire control, stock watering, and domestic water use from a well not exceeding 15,000 gallons per day.”
Water Rights FAQs - State of Oregon ↗Re-checked Sep 24, 2026
Mandatory utility hookupSewer (with conditions)
A building located within an Oregon sewer district, including a building using a composting toilet.
- The source specifically addresses buildings within a sewer district.
- A composting toilet does not eliminate the sewer-connection requirement.
“What if my building is within a sewer district? Your building will still need a sewer connection.”
What do I do with the finished material? ↗Re-checked Sep 12, 2026
county zoning authorityGeneral
Oregon counties adopting and revising comprehensive plans, zoning, subdivision, and other land-use ordinances applicable to county land, including unincorporated areas.
- The statutory text states an exception for ORS 527.722.
- Plans and related ordinances may be adopted and revised part by part or by geographic area.
- Zoning, subdivision, and other ordinances or regulations must be designed to implement the adopted county comprehensive plan.
- Before a county zoning ordinance has legal effect, the governing body or planning commission must conduct one or more public hearings and publish 10 days' advance public notice; additional notice requirements apply to certain zone changes under ORS 215.223.
“Except as provided in ORS 527.722, the county governing body shall adopt and may from time to time revise a comprehensive plan and zoning, subdivision and other ordinances applicable to all of the land in the county. The plan and related ordinances may be adopted and revised part by part or by geographic area.”
Oregon Revised Statutes, Chapter 215 — County Planning; Zoning; Housing Codes ↗Re-checked Sep 21, 2026
county building authorityGeneral
Oregon counties administering and enforcing building inspection programs, including issuance and enforcement of building permits for residential construction in areas outside incorporated cities.
- A county building inspection program is subject to the state building code and the statutory building-inspection-program framework.
- If a county does not notify the director, or notifies the director that it will not administer and enforce a building inspection program, the director must arrange administration and enforcement through a municipality, other person, state employees, or state agencies; permit and other fees arising therefrom are paid into the Consumer and Business Services Fund.
- A building inspection program is administered for four-year periods under ORS 455.150; the governing body must provide required notices to the Director of the Department of Consumer and Business Services.
- The program must specify cooperation with the State Fire Marshal or designee and how a uniform fire code will be considered in design and construction review.
- The cited archive is the 2015 Oregon Revised Statutes edition; the current official ORS 455 page was identified but returned a 403 error during retrieval.
“If a city does not notify the director, or notifies the director that it will not administer the building inspection program, the county or counties in which the city is located shall administer and enforce the county program within the city in the same manner as the program is administered and enforced outside the city, except as provided by subsection (6) of this section.”
Oregon Revised Statutes, Chapter 455 — Building Code ↗Re-checked Sep 21, 2026

Still unanswered

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

Minimum dwelling size — Dwellings in Lane County Rural Residential (RR) zones outside urban growth boundaries.
Lot coverage — Lot coverage in Lane County Rural Residential (RR) zones.

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 Lane County, Oregon

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

Lane County scores 62/100 on the Bolthole Index, a solid county profile. Its strengths: a stronger property-autonomy legal backdrop and about 32,024 people within 15 miles. Watch-outs: more administrative friction around building and land use.

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

Lane County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Lane County Land Management Division - On-Site Wastewater (Subsurface Sanitation) 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 Lane County?

Living in an RV on your own land in Lane 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. A tiny home is limited to specific cases. Confirm with the county before relying on it.

How much does land cost in Lane County, Oregon?

Land in Lane County runs about $12,788 per acre, based on the latest county data.

What is the water situation in Lane County?

Lane County gets about 64.1" of rain a year, with severe drought in roughly 18.1% of years.

How remote is Lane County?

A typical private-land location has about 32,024 people within 15 miles and 1,264,991 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Building permits, zoning and septic rules in Lane County, Oregon

At a glance

Who to call

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

Who is the Lane County building department, and how do you reach them?

Does Lane County have zoning?

How do septic permits work in Lane County?

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

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

What to check before you buy land in Lane County

Watch-outs

Sources

Lane County in Oregon

How Lane County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Lane County

Lane County rules

Oregon rules that apply here

Still unanswered

Living off-grid in Lane County, Oregon

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

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

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

How much does land cost in Lane County, Oregon?

What is the water situation in Lane County?

How remote is Lane County?

How Lane compares in Oregon