Unincorporated Jackson County, Oregon requires a building permit to build, enlarge, alter or move a home, issued by the Jackson County Development Services Building Division in Medford12. Every parcel is zoned under the county's Land Development Ordinance, and zoning approval for a house comes first34. Septic permits are not a county job here: the Oregon Department of Environmental Quality issues them from its Medford office5.
At a glance
- Building permit
- Required for any new, enlarged, altered or moved home in unincorporated Jackson County12
- Zoning
- Yes: county zoning districts (resource, rural residential and others) in unincorporated areas; cities zone their own land367
- Septic permits
- Oregon DEQ Medford office, applied for online through Oregon e-Permitting only58
- Owner-builder
- Allowed; owners may also do plumbing on their own home, and get relief from some structural-code rules910
- RV occupancy
- One self-contained vehicle for up to 9 months on land owned by the vehicle owner during permitted first-dwelling construction111213
- Small home
- A site-built home of 400 square feet or less can be occupied as a single-family dwelling after building and land-use approval14
- Driveway
- Road Approach permit from Jackson County Roads, $51515
- Septic soils
- Only 1% of the county's soils are free of severe limits for a conventional drain field16
Who to call
Building permits
Jackson County Development Services, Building Division
Structural, mechanical, electrical and plumbing permits, manufactured home setup permits, plan review and inspections in unincorporated Jackson County
JCBuilding@jacksoncountyor.gov
10 S Oakdale Ave, Medford, OR 97501
Codes & inspections
Jackson County Building Division (Do I Need a Permit?)
The county's list of residential work that does and does not need a permit
Septic permits
Oregon Department of Environmental Quality, Onsite Septic Program, Medford Office
Septic site evaluations, construction-installation permits and inspections for Jackson County (the county refers all septic work to DEQ); the same county page explains plumbing permits
221 Stewart Avenue, Suite 201, Medford, OR 97501
Septic permits
Oregon DEQ Residential Septic Permitting (Curry, Jackson and Josephine counties)
How DEQ's site evaluation and septic permit applications work in Jackson County
Planning & zoning
Jackson County Development Services, Planning Division
Zoning, land use applications, partitions and floodplain management for unincorporated Jackson County
jcplanning@jacksoncountyor.gov
10 S Oakdale Ave, Medford, OR 97501
Zoning
Jackson County Planning Division (Land Use Planning FAQ)
Planning's answers on setbacks, second dwellings, siting a home, land divisions, floodplains and fuelbreaks
Zoning
Jackson County Land Development Ordinance, Chapter 6 (Use Regulations)
County rules on accessory dwellings, temporary uses, manufactured dwelling storage and temporary medical hardship dwellings
Roads & driveways
Road approach (driveway), encroachment and other permits on county roads; open Monday to Friday, 8 AM to 5 PM
200 Antelope Road, White City, OR 97503
Roads & driveways
Jackson County Roads (Road Approach Permit)
Driveway (road approach) permits onto county roads
Contact details are copied from each office’s official page and were checked against it on October 14, 2026.
Off-grid gear
Going off-grid in Jackson County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Jackson County, Oregon?
Yes. A permit is required to construct, enlarge, alter or move any one- or two-family dwelling or related structure in unincorporated Jackson County, Oregon17. Oregon's statewide building code applies throughout Jackson County; the county adopts that code as county law and administers its specialty codes and mobile-home installation rules in unincorporated areas18194. Chapter 1 of the 2026 Oregon Residential Specialty Code became mandatory October 1, 2026; the remaining chapters and appendices became effective that day but are not mandatory until April 1, 202720.
A shed needs a permit once it is more than 200 square feet, or at any size in a floodplain17. Covered agricultural buildings are exempt from the state structural specialty code, but a dwelling is not an agricultural building and other permits may still apply2122. Permitted work must remain exposed until inspected and approved23.
Qualifying owner-builders get limited relief from rules on ceiling heights, room sizes and heating levels, but still receive permits and inspections9. An owner or immediate relative may do plumbing on the owner's residence if it is not for sale, rent or lease10.
Who is the Jackson County building department, and how do you reach them?
The Jackson County building department is the Development Services Building Division at 10 S Oakdale Ave in Medford, phone 541-774-6927, email JCBuilding@jacksoncountyor.gov4. Inspectors and plans examiners are usually in the office from 8:00 to 9:00 a.m. on Monday, Tuesday, Thursday and Friday4. Jackson County accepts electronic construction plans through ePermitting, which provides plan uploads and submittal requirements; some inspection types may be completed by video call24.
Start with current zoning approval and confirm DEQ sewage-disposal approval if the property lacks city services24. The county advises beginning well ahead of construction, with zoning or land-use review first24. Residential permit fees vary by the work: structural fees for new homes use the ICC valuation table, plumbing fees depend on kitchens and bathrooms, and electrical fees on square footage25. A certificate of occupancy must issue before anyone lives in a new house26.
Does Jackson County, Oregon have zoning?
Jackson County zones unincorporated land under its Land Development Ordinance and Official Zoning Maps, and where a parcel has an overlay, the overlay standards apply on top of the underlying district37. Those rules stop at city limits: Medford, Ashland, Central Point, Phoenix, Shady Cove, Jacksonville and Rogue River each administer their own zoning27282930313233. Phoenix and Talent also issue their own building permits3435. Septic permits for every address, city or not, remain with Oregon DEQ's Medford office5.
Minimum lot area, width, setbacks and height depend on the mapped district: rural residential districts range from 2.5 acres in RR-2.5 to 10 acres in RR-10, while resource districts generally require 80 acres36. Rural residential yards are generally 30 feet in front and 20 feet at the sides and rear, and rural residential and resource districts generally cap height at 35 feet; overlays and special setbacks can change those figures3738.
A home is permitted outright in residential zones but needs a land-use application on resource-zoned land39. Non-resource parcels next to resource land get a 200-foot setback39.
Eligible parcels inside an urban growth boundary, except White City, may receive a Type 1 permit for one ADU no larger than 900 square feet and within 100 feet of the existing detached house40. Rural ADUs outside growth boundaries have similar limits on qualifying rural-residential parcels of at least 2 acres41. White City uses separate rules: an ADU is limited to eligible urban-residential zones on a parcel of at least 6,000 square feet and may be no larger than 800 square feet or 50% of the principal home's habitable floor area42.
How do septic permits work in Jackson County?
Septic permits in Jackson County come from the Oregon Department of Environmental Quality's Medford office, not from the county5. The county directs residents to DEQ's onsite office at 221 Stewart Avenue, Suite 201, Medford, (541) 776-601010. Applications go only through Oregon e-Permitting43.
The usual path is a site evaluation, where a DEQ specialist examines soil test pits, followed by a separate construction-installation permit43. After installation, submit the final inspection request, as-built drawing, photos and materials list so DEQ can schedule the pre-cover inspection44. Only 1% of Jackson County's soils are free of severe limits for a conventional drain field16.
Before assuming septic is available, check sewer. For flows up to 899 gallons a day, sewer is generally considered available for new construction when the nearest connection is within 300 feet and access, capacity and local requirements are satisfied; properties in a city limit, urban growth boundary or sanitary district need a written sewer-authority statement with the septic application45. A composting toilet does not replace an approved system for the home's other plumbing46.
Can you live in an RV or tiny home on your land in Jackson County?
In unincorporated Jackson County, recreational and camping vehicles are not generally allowed as housing; the ordinance permits only defined temporary uses and an RV as a temporary medical-hardship dwelling1311. One self-contained camping vehicle may provide housing for up to 9 months on land owned by the vehicle owner, after permits issue for the first dwelling or during remodeling or replacement of a lawful dwelling12. On vacant land, one self-contained vehicle may be used recreationally for up to 3 months in any 12-month period with the landowner's consent; visitor housing for a current resident's guests is limited to 30 days in any 12-month period11. Temporary camping must meet floodplain, health and sanitation rules, does not waive other required permits, and excludes areas under an approved destination-resort preliminary development plan; ask Planning about approval before setting up4748.
A site-built small home of no more than 400 square feet may be occupied as a single-family dwelling after meeting Oregon construction standards, the building-permit process and Jackson County land-use requirements14. Oregon's small-home rule excludes tiny homes on wheels and RVs; we could not confirm Jackson County's separate occupancy treatment for a tiny home on wheels, so ask Planning how the unit will be classified1448.
Building a home in Jackson County: what are the steps, in order?
- Ask the Planning Division about the parcel's zone, district-specific lot size, setbacks, height and whether a dwelling needs a land-use application48363738.
- Ask Planning whether the parcel is in a floodplain; Planning matches tax lots to FEMA maps39.
- Determine whether sewer is available; if not, apply to DEQ through Oregon ePermitting for a septic site evaluation and construction-installation permit4543.
- If you need a well, hire a licensed well constructor or obtain a state landowner permit with a $10,000 bond49.
- Confirm who maintains the road. A road approach permit is required where a private road meets a publicly maintained road, and county-road connections need the permit before work begins5015.
- Upload construction plans and apply for building, electrical, mechanical and plumbing permits244.
- Complete inspections, any required 100-foot fuelbreak and the certificate of occupancy before moving in233926.
What should you check before you buy land in Jackson County?
Check the zone and legal parcel status before the price. A resource-zoned parcel without a recognized legal dwelling may need a land-use application before any house can go up39. A new subdivision or partition plat cannot be used for sale or building development until it is approved and recorded, and later development remains subject to the rules in force when approval is sought51. New parcels created after October 28, 1980 need 25 feet of road frontage39.
Federal land covers about 57.1% of Jackson County, and many federal tracts were never accurately surveyed524. The county is 83.8% forest, and only 33.8% of the land slopes 15% or less, so price wildfire preparation and grading into the project5354. Severe drought has occurred in 33.5% of years, making a well test worth paying for55.
Farmland averages $12,421 an acre56. The effective property tax rate is about 0.8%, with a median bill of $3,032 a year5758.
Watch-outs
- Jackson County zoning approvals for a house often expire after two years and cannot be renewed, so a seller's old approval may mean nothing4.
- Jackson County septic applications go to Oregon DEQ online only; DEQ does not accept them by email, mail or in person43.
- New structures in Jackson County's resource zones and rural residential zones outside growth boundaries need a 100-foot wildfire fuelbreak39.
- Property lines along federal land in Jackson County may be approximate because many federal tracts were never accurately surveyed4.
- Jackson County's dated fee schedule lists a $318 road-approach fee, while the current permit page lists $515, so confirm the charge with County Roads before applying5915.
- Temporary camping in unincorporated Jackson County does not waive other required permits or floodplain rules, and cannot involve permanent site changes47.
Sources
- Jackson County Development Services - Building Division (2026 county census)
- Jackson County, Oregon Development Services - Building Division, quoted and re-checked
- Jackson County Comprehensive Plan — General Introduction Element, quoted and re-checked
- Jackson County Development Services, Building Division (jacksoncountyor.gov)
- Residential Septic Permitting, quoted and re-checked
- Zoning Taxlots, quoted and re-checked
- Jackson County Land Development Ordinance — Chapter 5, Zone Districts, quoted and re-checked
- Residential Septic Permitting, quoted and re-checked
- 2023 Oregon Residential Specialty Code - Owner-built dwellings, quoted and re-checked
- Oregon Department of Environmental Quality, Onsite Septic Program, Medford Office (jacksoncountyor.gov)
- Jackson County Land Development Ordinance, Chapter 6 — Use Regulations, quoted and re-checked
- Chapter 6. Use Regulations, quoted and re-checked
- Chapter 6. Use Regulations, quoted and re-checked
- Current Small Home Construction Standards and Planned 2026 Updates, quoted and re-checked
- Jackson County Roads (Road Approach Permit) (jacksoncountyor.gov)
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Jackson County Building Division (Do I Need a Permit?) (jacksoncountyor.gov)
- Oregon State Building Code, quoted and re-checked
- Jackson County Development Services - Building Division, quoted and re-checked
- Oregon Building Codes Division - Adopted codes online, quoted and re-checked
- Oregon Revised Statutes, ORS 455.315, quoted and re-checked
- Oregon Revised Statutes, Chapter 455 (Oregon statewide rule), quoted and re-checked
- Jackson County, Oregon Development Services - Building Division, quoted and re-checked
- Jackson County, Oregon Development Services - Building Division, quoted and re-checked
- Valuation and fee requirements by work/record type (Oregon statewide rule), quoted and re-checked
- 2023 Oregon Residential Specialty Code - Certificate of Occupancy provisions, quoted and re-checked
- Medford: Planning - City of Medford (Jackson County), quoted and re-checked
- Ashland: Part 18.2 – Zoning Regulations (Jackson County), quoted and re-checked
- Central Point: Chapter 17.20 R-1, Residential Single-Family District - City of Central Point, OR (eCode360) (Jackson County), quoted and re-checked
- Phoenix: Planning - City of Phoenix (Jackson County), quoted and re-checked
- Shady Cove: Shady Cove Code Ch. 154 Zoning: R-1 and R-2 districts (§§ 154.036-154.053) (Jackson County), quoted and re-checked
- Jacksonville: Title 17: Zoning (Jackson County), quoted and re-checked
- Rogue River: Planning – City of Rogue River Oregon (Jackson County), quoted and re-checked
- Phoenix: Building - City of Phoenix (Jackson County), quoted and re-checked
- Talent: City of Talent FAQs (Jackson County), quoted and re-checked
- Jackson County Land Development Ordinance, Chapter 8: Dimensional Standards, Measurements and Adjustments, quoted and re-checked
- Jackson County Land Development Ordinance, Chapter 8: Dimensional Standards, Measurements and Adjustments, quoted and re-checked
- Jackson County Land Development Ordinance, Chapter 8: Dimensional Standards, Measurements and Adjustments, quoted and re-checked
- Jackson County Planning Division (Land Use Planning FAQ) (jacksoncountyor.gov)
- Jackson County Land Development Ordinance, Chapter 6 — Use Regulations, quoted and re-checked
- Chapter 6. Use Regulations, quoted and re-checked
- Accessory Dwelling Unit: Within the White City Urban Unincorporated Community Boundary, quoted and re-checked
- Oregon DEQ Residential Septic Permitting (Curry, Jackson and Josephine counties) (oregon.gov)
- Residential Septic Permitting, quoted and re-checked
- Onsite Wastewater (Septic) Rules Update, quoted and re-checked
- Considerations for Installing a Composting Toilet System, quoted and re-checked
- Jackson County Land Development Ordinance, Chapter 6 — Use Regulations, quoted and re-checked
- Jackson County Development Services, Planning Division (jacksoncountyor.gov)
- Landowner Constructed Wells, quoted and re-checked
- Chapter 9 - General Development Regulations, quoted and re-checked
- Jackson County Land Development Ordinance, Chapter 10: Land Division, quoted and re-checked
- Federal land share: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
- Farmland value per acre (USDA census): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- 2023-2024 Jackson County Fees, quoted and re-checked
Written October 14, 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.