Unincorporated Deschutes County, Oregon requires a county building permit for a new home, and most homes also need a planning (land-use) review and a septic permit first12. All three come from Deschutes County Community Development at 117 NW Lafayette Avenue in Bend34. Since April 1, 2026, every new dwelling and new accessory structure in unincorporated Deschutes County must meet the state's wildfire fire-hardening code5.
At a glance
- Building permit
- Required from Deschutes County Building Safety; building review runs about 8-9 weeks16
- Zoning
- Yes; county base zones plus overlay zones across unincorporated land7
- Septic
- County Onsite Wastewater Division; site evaluation with test pits comes first89
- Fire hardening
- Mandatory on new dwellings and accessory structures since April 1, 20265
- RV living
- Temporary only: 30 days in 60 without a permit, 6 months a year with one, or during construction10
- Minimum parcel
- 10 acres in RR-10, MUA-10 and UAR-10; 80 acres for non-irrigated EFU and forest zones11
- Wells
- State permit; landowners drilling their own well post a $10,000 bond12
- Owner-builder
- Homeowners may pull permits and do their own work13
Who to call
Building permits
Deschutes County Community Development, Building Safety Division
Building permits, plan review and inspections in unincorporated Deschutes County
117 NW Lafayette Avenue, Bend, OR 97703
Planning & zoning
Deschutes County Community Development, Planning Division
Zoning, land-use permits, RV and ADU approvals, land divisions
117 NW Lafayette Avenue, Bend, OR 97703
Building permits
Deschutes County Community Development: permit processing times
Queue times for building, septic and driveway access permits
Building permits
Deschutes County Community Development: permitting process guide
How planning, septic and building permits fit together
Septic permits
Deschutes County Community Development, Onsite Wastewater Division: site evaluations
Septic site evaluations, onsite permits and inspections
Septic permits
Deschutes County Onsite Wastewater Division: Southern Deschutes County groundwater protection
Nitrogen-reducing septic requirements in southern Deschutes County
Contact details are copied from each office’s official page and were checked against it on September 28, 2026.
Do you need a building permit in Deschutes County, Oregon?
Yes. In unincorporated Deschutes County, new construction and structural, plumbing, mechanical and electrical alterations need permits under the Oregon Residential Specialty Code, administered by Deschutes County Community Development1. The owner or the owner's agent must get the permit before the work, and new habitable rooms or bathrooms always need one2. Every permit needs at least one inspection and a final inspection before it closes14.
Since April 1, 2026, all new dwellings and new accessory structures in unincorporated Deschutes County must be built to the Section R327 fire-hardening standard5. Non-habitable sheds under 400 square feet and no taller than 15 feet are exempt, as are additions and HUD-code manufactured homes5. Farm and horse buildings in EFU, F1, F2 or MUA10 zones on land with farm or forest tax deferral can apply for an agricultural exemption from structural permits, but still need electrical, mechanical and plumbing permits15. A homeowner may pull permits and do the work on their own property13.
Who is the Deschutes County building department, and how do you apply?
Deschutes County Community Development handles building, septic and planning permits from one building at 117 NW Lafayette Avenue in Bend3. The Building Safety Division issues building permits, and plans examiners answer project questions in person Monday through Friday, 9 am to 4 pm, or at 541-385-174354. The Planning Division's Planner of the Day takes zoning questions at 541-388-6560 or [email protected]3.
Building and septic permits are filed online through Oregon ePermitting, but planning permits are not4. Planning applications may be emailed, delivered in person or mailed, and the fee depends on the application and current schedule1617. Plan on the queue: about 1 week for intake, 10 days for planning review, 8-9 weeks for building review and 4-6 weeks for septic review6. An incomplete application is withdrawn, not held, so upload every document at once6. Incorporated municipalities may administer their own zoning, so use the appropriate city office for land inside city limits18.
Does Deschutes County have zoning?
Yes. Unincorporated Deschutes County has base zones that set allowed uses, minimum parcel size and development standards, plus combining or overlay zones that add conditions7. Look up your parcel's zones in the county's DIAL property information system19.
Minimum parcel sizes for a standard land division are 10 acres in the RR-10, MUA-10 and UAR-10 zones, and 80 acres for non-irrigated EFU land and the F1/F2 forest zones11. Oregon sets the same 80-acre floor for farm and forest land statewide20. Setbacks differ by zone: RR-10 requires 20 feet in front from a local street, 10 feet on the sides and 20 feet in the rear21. In MUA-10, side and rear setbacks grow to 100 feet for a dwelling next to land with farm tax deferral21. We could not confirm a county minimum home size; ask the Planner of the Day3.
How do septic permits work in Deschutes County?
The Deschutes County Onsite Wastewater Division issues septic permits, and an approved site evaluation is required before you apply for a new one822. Dig 3 to 5 test pits before the evaluation; the report sets the minimum system and where it can go9. If a valid evaluation is already on file for the parcel, you do not need a new one9. Frozen winter ground can stop a site evaluation, so apply early4.
Soils are a real constraint: the NRCS rates only 2.9% of the county's soils free of severe limits for a conventional drain field23. Sand filter, pressure distribution and ATT systems need extra documents and a signed operation and maintenance contract22. In southern Deschutes County, DEQ reviews each site, and the usual result is a nitrogen-reducing treatment system24. Systems are inspected before backfill and again at final25. Pit privies are prohibited, and every wastewater fixture must drain to an approved system26.
Can you live in an RV or tiny home on your land in Deschutes County?
Only on a limited basis. On land with no dwelling, you may stay in an RV for up to 30 total days in any rolling 60-day period without a permit, or up to 6 months a year with a Temporary Use Permit, but never as permanent housing10. While you build, you may live in an RV once the building permit is issued, until 18 months after issuance or 2 months after completion, whichever comes first10. On a lot with an established dwelling, an RV is for storage only, except for a planning-approved medical hardship27.
An RV rental dwelling is allowed in the RR-10, MUA-10, UAR-10, SR 2½ and WTZ zones on at least 2 acres, with an owner-occupied main house10. A tiny home qualifies only if titled as an RV, typically no wider than 8.5 feet, with no decks or porches attached28. An ADU is allowed only in rural residential exception areas, up to 900 square feet and within 100 feet of the main house29. A manufactured dwelling needs its placement permit after any required planning review, septic approval and driveway-access work30.
What are the steps to build a home in rural Deschutes County?
- Pull the parcel's report in DIAL to confirm zones and any past permits or site evaluations199.
- Ask the Planner of the Day whether your house needs a land-use permit, and apply by email if it does3.
- Dig 3 to 5 test pits and apply for a septic site evaluation, avoiding frozen-ground months94.
- Apply for the onsite (septic) permit through Oregon ePermitting; review takes 4-6 weeks6.
- Get a driveway access permit; Road Department review takes about 3 weeks6.
- Apply for the building permit with fire-hardened plans; building review takes 8-9 weeks65.
- If you drill your own well, get the state landowner permit and post the bond first12.
- Schedule inspections and close every permit with a final inspection14.
What should you check before you buy land in Deschutes County?
Check water first. A landowner drilling their own well needs a $550 state permit and a $10,000 bond or letter of credit before work begins12. The county has had severe drought in 32.8% of years, and rain averages 22.9 inches a year3132. Check the septic record in DIAL: a valid site evaluation on file saves time and money9. In the south county, budget for a nitrogen-reducing system24.
Wildfire shapes the build: fire-hardening rules apply to every new house and most new outbuildings5. About 76.6% of the county is federal land, and 49.6% is wooded3334. Land is expensive: farmland averages about $12,883 an acre, and a typical home is worth about $672,0413536. The effective tax rate is 0.6%, with a median bill of $3,6703738. From the county center, the nearest city of 100,000 or more people is about 5 miles away39.
Watch-outs
- Since April 1, 2026, every new dwelling and new accessory structure in unincorporated Deschutes County must meet the R327 fire-hardening code, which changes attic vents, decks and eaves5.
- Deschutes County building review runs about 8-9 weeks and septic review 4-6 weeks, and incomplete applications are withdrawn rather than held6.
- Frozen winter ground can stop a Deschutes County septic site evaluation, so schedule test pits before winter4.
- In southern Deschutes County, DEQ reviews each septic site and usually requires a nitrogen-reducing system, which costs more than a standard drain field24.
- An RV on vacant land in Deschutes County is temporary only (30 days in any 60 without a permit, up to 6 months a year with one); living in it while building requires an issued building permit10.
Sources
- Deschutes County Community Development - What Permits Do I Need (2026 county census)
- 2023 Oregon Residential Specialty Code - Chapter 1, quoted and re-checked
- Deschutes County Community Development, Planning Division (deschutescounty.gov)
- Deschutes County Community Development: permitting process guide (deschutescounty.gov)
- Deschutes County Community Development, Building Safety Division (deschutescounty.gov)
- Deschutes County Community Development: permit processing times (deschutescounty.gov)
- Zoning Index, quoted and re-checked
- Onsite Permit (New Construction and Installation) Application Guide, quoted and re-checked
- Deschutes County Community Development, Onsite Wastewater Division: site evaluations (deschutescounty.gov)
- Can I Live in a Recreational Vehicle (RV) on My Property?, quoted and re-checked
- Zoning Index, quoted and re-checked
- Landowner Constructed Wells, quoted and re-checked
- Deschutes County Community Development - What Permits Do I Need (2026 county census)
- Inspections, quoted and re-checked
- Agricultural or Equine Exempt Permit Application Guide, quoted and re-checked
- Planning & Zoning, quoted and re-checked
- Planning & Zoning, quoted and re-checked
- Zoning Index, quoted and re-checked
- Zoning Index, quoted and re-checked
- Oregon Revised Statutes, Chapter 215 (Oregon statewide rule), quoted and re-checked
- Zoning 101, quoted and re-checked
- Onsite Permit (New Construction and Installation) Application Guide, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Deschutes County Onsite Wastewater Division: Southern Deschutes County groundwater protection (deschutescounty.gov)
- Onsite/Septic, quoted and re-checked
- Onsite/Septic, quoted and re-checked
- Code Enforcement - RV Regulation DCC 18.116.095, quoted and re-checked
- Frequently Asked Questions, quoted and re-checked
- Frequently Asked Questions, quoted and re-checked
- Manufactured Dwelling Placement Application Guide, quoted and re-checked
- Share of years in severe drought: Bolthole Index county data
- Annual precipitation: Bolthole Index county data
- Federal land share: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Farmland value per acre (USDA census): Bolthole Index county data
- Typical home value (Zillow): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Distance to the nearest metro area: Bolthole Index county data
Written September 28, 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.