Bolthole Index

Marion County, Oregon

Zoning, building permits and septic rules in Gates, Oregon

Gates is a city in Marion County, Oregon. Gates adopts its own zoning, so inside its limits Gates’s rules apply, not the county’s. 12 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the Marion County page.

Answers from the rulebook for Gates

Gates’s own rules

  • Local zoningPresent

    Land inside Gates city limits (Marion/Linn counties)

    • Zoning ordinance includes R (residential), CR (commercial/residential), IL (light industrial) and P (public) zones.
    • Amendments exist (e.g. Ord. No. 219, Aug 19, 2021); ordinance PDF is the city's posted current version.
    “to provide for single-family dwellings and their accessory uses and to permit, with conditional use approval, certain other uses which are necessary or compatible to residential living including multi-family residential development.”
  • Zoning districtsPublished

    Zoning districts inside Gates city

    • Chapters 15-18 cover R, CR, IL and P zones.
    “in the residential, commercial-residential, industrial and public zones two recreational vehicles are permitted on a legal buildable lot when a transitional housing permit is obtained.”
  • Minimum lot sizeSpecified

    R (residential) zone inside Gates city

    • Duplex lots 16,000 sq ft where allowed
    • Multifamily max density one unit per 3,000 sq ft gross area
    • Additional lot area may be required to accommodate an approved septic system (section 14.110)

    minimum lot size R zone: >= 14000 square feet (duplex lots 16,000 sq ft) · minimum lot width: >= 70 feet

    “the minimum lot or parcel size in the r zone is 14,000 square feet, except where allowed, lots containing duplexes shall have a minimum of 16,000 square feet.”
    One more reviewed finding on this topic
  • SetbacksSpecified

    R (residential) zone inside Gates city

    • Special setbacks in section 15.080 add one foot per foot of height above a threshold (see ordinance)
    • Other structures: side 10 ft, rear 15 ft

    front yard: >= 20 feet · side yard single-family: >= 5 feet (other structures 10 ft) · rear yard single-family: >= 10 feet (other structures 15 ft)

    “the minimum side yard depth shall be five (5) feet for single-family dwellings; all other structures shall maintain a minimum side yard of ten (10) feet.”
    One more reviewed finding on this topic
    • Specified — CR (commercial/residential) zone inside Gates city
      “(1) the front yard shall be a minimum of 20 feet. (2) each side yard shall be a minimum of ten (10) feet, except that on corner lots the side yard on the street side shall be a minimum of fifteen (15) feet. (3) the rear yard shall be a minimum of ten (10) feet.”
  • Lot coverageSpecified

    R (residential) zone inside Gates city

    maximum lot coverage: <= 50 percent

    “the maximum lot coverage, including the main building and any accessory structures, shall be 50 percent %.”
  • Building heightSpecified

    R (residential) zone inside Gates city

    • Churches and public/semi-public buildings up to 70 ft with conditional use approval

    maximum height: <= 35 feet (churches and public or semi-public buildings up to 70 ft under conditional use)

    “in the r zone, no building or structure shall exceed 35 feet except churches and public or semi-public buildings may, when approved under the conditional use procedures, be built to a height of 70 feet.”
  • Living in an RVTemporary only (with conditions)

    RV living/sleeping outside a designated RV park inside Gates city

    • Temporary-stay permit from the city required; once per vehicle per calendar year
    • Wildfire (Beachie Creek/Lionshead) transitional housing: two self-contained RVs on a legal buildable lot with a transitional housing permit
    • Designated RV areas within manufactured dwelling parks may not exceed 25 percent of net buildable area

    temporary-stay permit duration: <= 15 days (once per calendar year per vehicle)

    “provided, however, that a camper or recreational vehicle may be used for sleeping or living purposes outside of a designated recreational vehicle park for a period not to exceed fifteen (15) days, after the owner or occupant thereof has first secured from the city a temporary-stay permit.”
  • Camping on your landLimited

    Camper/RV sleeping outside designated RV parks inside Gates city

    • Temporary-stay permit required
    • Limited to 15 days, once per vehicle per calendar year

    temporary-stay permit duration: <= 15 days

    “the permit shall be issued for each vehicle or unit only once in each calendar year.”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes in the R zone inside Gates city

    • Must meet siting standards of the manufactured dwelling chapter (cited as section 13.040)
    • Manufactured dwelling subdivisions are conditional uses in R and CR zones; minimum 10 contiguous lots
    • Not sited in a historic district or adjacent to a historic landmark (section 13.070)
    • R zone dwellings require an enclosed garage or carport (Ord. 219)
    “(a) single-family dwellings and manufactured homes consistent with the requirements in section 13.040,”
  • Subdividing landRegulated (with conditions)

    Partitions, subdivisions and PUDs inside Gates city

    • Chapter 19 (land divisions) and PUD provisions (3-acre minimum PUD site) apply
    “the minimum lot area and dimension requirements established in this ordinance shall apply to new lots created as the result of a partitioning, subdivision or planned unit development approval”

Still unanswered

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

  • Building permit — Building permits inside Gates city
  • Owner-builder exemption — Owner-builder exemption inside Gates city
  • Building code adopted — Building code inside Gates city
  • Inspections — Building inspections inside Gates city
  • Certificate of occupancy — Certificate of occupancy inside Gates city
15 more unanswered
  • Minimum dwelling size
  • Tiny homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

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 Gates publishes no rule on the point, not that none exists. Marion County’s page lists the county offices to call.

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