Bolthole Index

Marion County, Oregon

Building permits, zoning and land rules in Aurora, Oregon

Aurora, Oregon requires building permits for residential construction, subject to work-specific exemptions; the City of Aurora administers building permits and inspections.12 Aurora sets city zoning, while Marion County Building Inspection handles ordinary septic permits for Aurora properties without community sewer.34 RV residence inside Aurora is generally prohibited, with specified emergency, city-approval and guest-use exceptions.5

At a glance

Building permits
Required for residential construction, with work-specific exemptions; administered by Aurora12
Zoning
City zoning applies; residential district standards differ3
Septic permits
Marion County Building Inspection where community sewer is unavailable; DEQ reserves certain systems4
RV living
Generally prohibited; limited emergency, city-approved and guest-use exceptions5
Owner-builder
Conditional exemption for ceiling heights, room sizes and temperature requirements; a building permit still applies6
Private wells
Oregon landowner well permit required for an owner doing covered work without a licensed and bonded well constructor7

Who to call

Building permits

City of Aurora Building Department

City building-permit applications, plan review and inspections

503-678-1283

21420 Main Street

Online permits →

Zoning

City of Aurora City Planner

City land-use inquiries, zoning interpretation and development applications

503-678-1283

Septic permits

Marion County Building Inspection — Onsite Sewage Disposal Program

Septic site evaluations and ordinary septic-system permits for Aurora properties without community sewer

503-588-5147

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

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

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 Aurora, OR?

Aurora residential construction requires a building permit to construct, enlarge, alter, repair or move a residential building or structure, with exemptions for specified work.1 The City of Aurora administers building permits and inspections inside city limits.2 Oregon’s Residential Specialty Code governs construction, reconstruction and repair of covered dwellings and townhouses.8

An Aurora owner-builder may qualify for an exemption concerning ceiling heights, room sizes and maintenance of specific temperature levels when the owner intends to occupy the structure and builds the structural components entirely alone or with unpaid friends or relatives.6 The owner-builder provision still requires a building permit that records compliance with the exempted requirements; noncompliance triggers recording with the county clerk.6

Who handles Aurora building permits and zoning applications?

Contact the City of Aurora Building Department at 503-678-1283 for building-permit assistance.9 Aurora contracts with Northwest Code Professionals for building, electrical, plumbing and mechanical plan review and inspections throughout the city.9 Aurora offers online submission of building, plumbing, mechanical and electrical permit applications through Oregon ePermitting.9

Aurora’s City Planner answers land-use and development inquiries, and the planning page provides the City Zoning Designation Map and Planning / Development Application.10 Ask the City Planner to identify the parcel’s district and the approvals needed for your proposed use before preparing construction drawings.310

Does Aurora have zoning, and what limits apply to a home?

Aurora has city zoning, including district-specific standards for residential land.3 In Aurora’s R-1 district, impervious surfaces may cover no more than 50% of a lot or parcel; in R-2, the maximum is 60%.1112 Buildings in both districts have a 35-foot height ceiling and an additional limit on the number of stories.1314

Coverage is an impervious-surface limit, so do not treat the percentage as an allowance for building footprint alone.1112 We could not confirm Aurora’s complete minimum-lot-size, setback or tiny-home occupancy requirements; ask the City Planner for the standards applicable to the parcel and proposed dwelling.310

Can you live in an RV or tiny home in Aurora?

Aurora generally prohibits occupying, living in or using an RV as a residence inside city limits, except during a declared emergency or where the city specifically approves the use under its temporary-use chapter.5 A residentially zoned Aurora property may house guests in one RV at a time for no more than 10 total days per calendar year per property.5 Aurora prohibits RV occupancy on a street, public park or city property.5

Do not plan to live in an RV during construction without first obtaining Aurora’s determination that an exception applies.5 We could not confirm a separate Aurora tiny-home occupancy rule; ask the City Planner to evaluate the proposed structure and use, including whether an RV classification applies.10

How do septic permits and off-grid sanitation work in Aurora?

For Aurora property without community sewer, Marion County Building Inspection issues ordinary septic permits as Oregon DEQ’s contract agent; DEQ retains certain WPCF systems.4 Installing or replacing an onsite sewage system requires the applicable septic approval, and a valid site evaluation may be needed before installation.15 Oregon requires a site evaluation for an undeveloped site that has never been evaluated for septic approval.16

A composting toilet does not remove the need to handle household wastewater through an approved system: Oregon still requires plumbing fixtures to connect to an approved septic system, and buildings within a sewer district still need a sewer connection.17 Contact Marion County’s Onsite Sewage Disposal Program at 503-588-5147 to discuss the property’s septic history and application route.18

Building a home in Aurora: what should you do first?

  1. Ask Aurora’s City Planner to confirm the zoning district and proposed use; use the city’s zoning map and development application to frame the discussion.310
  2. Arrange the city’s pre-application conference for new residential development or other work requiring land-use and site review.9
  3. Resolve wastewater feasibility before committing to a layout: for a never-evaluated undeveloped septic site, obtain a site evaluation through the appropriate septic authority.164
  4. Apply to Aurora for the building permit before residential construction begins, and coordinate inspections with the city’s building program.199

For land outside Aurora city limits, use the Marion County guide for unincorporated-area building and zoning requirements.2021 We could not confirm Aurora’s complete floodplain-development, driveway-access or certificate-of-occupancy requirements; ask city staff to identify the approvals needed before buying or scheduling construction.910

Watch-outs

  • Aurora’s RV guest allowance is limited to 10 total days per calendar year per residentially zoned property; it does not provide ordinary year-round housing.5
  • An owner-builder exemption in Aurora concerns specified structural-code requirements and still requires a building permit.6
  • For a driveway connecting to an Oregon state highway, ODOT requires written permission before constructing a new approach or changing an existing connection’s use.22

Sources

  1. About Oregon Residential Building Permits (Aurora), quoted and re-checked
  2. Where to Apply for Permits (Aurora), quoted and re-checked
  3. Aurora Code § 16.10.020, R-1 Permitted Uses (Aurora), quoted and re-checked
  4. Onsite Sewage Disposal Program (Septic) (Aurora), quoted and re-checked
  5. Aurora Code § 16.36.050, Occupying Recreational Vehicles (Aurora), quoted and re-checked
  6. 2023 Oregon Residential Specialty Code, Chapter 1 (Aurora), quoted and re-checked
  7. Landowner Constructed Wells (Oregon statewide rule), quoted and re-checked
  8. Residential Structures Code Program (Oregon statewide rule), quoted and re-checked
  9. City of Aurora Building Department (ci.aurora.or.us)
  10. City of Aurora City Planner (ci.aurora.or.us)
  11. Aurora Code § 16.10.040, R-1 Development Standards (Aurora), quoted and re-checked
  12. Aurora Code § 16.12.040, R-2 Development Standards (Aurora), quoted and re-checked
  13. Aurora Code § 16.10.040, R-1 Development Standards (Aurora), quoted and re-checked
  14. Aurora Code § 16.12.040, R-2 Development Standards (Aurora), quoted and re-checked
  15. Onsite Sewage Disposal Program (Septic) (Aurora), quoted and re-checked
  16. Housing and Onsite Wastewater Management (Oregon statewide rule), quoted and re-checked
  17. What do I do with the finished material? (Oregon statewide rule), quoted and re-checked
  18. Marion County Building Inspection — Onsite Sewage Disposal Program (co.marion.or.us)
  19. Where to Apply for Permits (Aurora), quoted and re-checked
  20. Building Inspection (2026 county census)
  21. Planning & Zoning (2026 county census)
  22. Access Management (Oregon statewide rule), quoted and re-checked

Written October 11, 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.

Answers from the rulebook for Aurora

Aurora’s own rules

  • InspectionsRequired

    Permitted building work inside Aurora city limits.

    • The City of Aurora administers permits and inspections.
    “All permits and inspections are administered by the City of Aurora.”
  • Local zoningPresent

    Land inside Aurora city limits; Aurora administers R-1 and R-2 residential zoning districts.

    • District-specific standards and other Title 16 requirements apply.
    “In the R-1 zone, only the following uses and their accessory uses are permitted outright.”
  • Lot coverageSpecified

    Lots or parcels in Aurora's R-1 zone.

    • Areas with slope greater than 20 percent or within the Flood Hazard Overlay may be excluded from FAR calculations; the cited coverage rule is for impervious surfaces.

    maximum impervious-surface coverage: <= 50 percent of lot or parcel

    “Impervious surfaces shall not cover more than fifty (50) percent of the lot or parcel.”
    One more reviewed finding on this topic
  • Building heightSpecified

    Buildings in Aurora's R-1 zone.

    • No building may exceed either two and one-half stories or 35 feet.
    • Specified design features are also required.

    maximum height: <= 35 feet (also limited to two and one-half stories)

    “No building in an R-1 zoning district shall exceed two and one-half stories or thirty-five (35) feet in height.”
    One more reviewed finding on this topic
  • Living in an RVProhibited

    Residential occupancy of recreational vehicles inside Aurora city limits.

    • Exception for a declared state of emergency.
    • Use may be specifically approved by the city under Chapter 16.52.
    • A residentially zoned property may use one recreational vehicle to house guests for no more than ten total days per calendar year.
    • Recreational vehicles cannot be occupied while parked on a street, public park, or city property.
    “It is unlawful for any recreational vehicle, to be occupied, lived in or otherwise used as a residence within the city, except in cases of a declared state of emergency, unless such use is specifically approved by the city under Chapter 16.52 . A residentially zoned property is permitted to use one recreational vehicle at a time to house guests no more than a total of ten (10) days in a calendar year per property.”
  • Camping on your landLimited

    Camping on public property and public rights-of-way inside Aurora city limits.

    • Camping is unlawful unless specifically authorized by the Code or by the Mayor in emergency circumstances.
    • The cited provision addresses public property and public rights-of-way, not camping on private land.
    “It is unlawful for any person to camp in or upon any public property or public right-of-way, unless otherwise specifically authorized by this Code or by order by the Mayor in emergency circumstances.”
  • Permit processPartial

    Permit applications and inspections inside Aurora city limits.

    • Marion County's official directory identifies Tammy Grimes and phone (503) 678-1283 X-2 as the Aurora contact.
    • All permits and inspections are administered by the City of Aurora.
    • State residential work requiring a permit must obtain one before construction.
    “Contact:Tammy Grimes Phone: (503) 678-1283 X-2 All permits and inspections are administered by the City of Aurora.”

Rules another office applies inside Aurora

Aurora does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Building permitRequired

    Residential construction inside Aurora city limits.

    • A building permit is required for the listed residential work; permit exemptions may apply to specified work.
    “A building permit is required to construct, enlarge, alter, repair, or move a residential building or structure.”
  • Owner-builder exemptionConditional

    Owner-built single-family dwellings and adjacent outbuildings inside Aurora city limits.

    • The structural components must be constructed entirely by the owner intending to occupy the structures, or by the owner and unpaid friends or relatives.
    • The exemption concerns ceiling heights, room sizes, and maintenance of specific temperature levels.
    • The building permit must note compliance; noncompliance requires recording the permit with the county clerk.
    “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.”
  • Who permits septicMixed (with conditions)

    Onsite sewage systems serving land inside Aurora city limits where community sewer is unavailable.

    • Marion County Building Inspection issues permits as a contract agent of DEQ.
    • Exceptions include properties served by a community sewer system and systems reserved by DEQ under WPCF rules.
    “Marion County Building Inspection issues all septic system permits within Marion County. Building Inspection is a contract agent of the Oregon Department of Environmental Quality (DEQ).”
  • Septic permitRequired

    Installation or replacement of onsite sewage systems inside Aurora city limits where community sewer is unavailable.

    • A valid site evaluation may be required before construction installation.
    • Community-sewer properties and DEQ-reserved WPCF systems are exceptions to the ordinary county-issued septic permit process.
    “Do you want to install a septic system on your property and already have a valid Site Evaluation approval for the property? Apply for a Septic CONSTRUCTION INSTALLATION.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Aurora or Marion County directly.

  • Building code adopted — Building construction inside Aurora city limits.
  • Certificate of occupancy — Occupancy of buildings inside Aurora city limits.
  • Tiny homes — Tiny-home occupancy inside Aurora city limits.
  • Septic inspection — Onsite sewage systems inside Aurora city limits.
  • Off-grid sanitation — Off-grid sanitation systems inside Aurora city limits.
7 more unanswered
  • Well permit
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

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.

Unanswered questions are usually a sign that Aurora publishes no rule on the point, not that none exists. Marion County’s page lists the county offices to call.

← All of Marion County: county rules, score and offices