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ADUs are allowed in Condon
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Condon, OR

Is your property eligible for an ADU?

# of Properties
489
Owner-occupied
4%
Zoning districts
4
Median Lot Size
0.23 acres
Avg Income
$57,578
Residential Types:
489 housing units
Single Family
69%
Other
31%
Zoning Districts:
725 parcels · 4 districts
R1
55%(396)
C
32%(233)
P
11%(78)
M
2%(18)

ADU Rules

What can you build in Condon, OR?

Condon, OR follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Interior / Attached ADU Size Limits

  • Maximum size is the greater of 900 sq ft or 75% of the primary dwelling’s gross floor area; full-level internal conversions may exceed the 900 sq ft cap.

Detached ADU Size Limits

  • Maximum detached ADU floor area is the larger of 900 sq ft or 75% of the primary dwelling’s total floor area.

Max Units

  • SFD/duplex/triplex: 1 detached ADU per lot

Owner Occupancy

  • No owner-occupancy requirement.

Parking

  • 0 spaces (ADUs exempt from §154.020(F)); no max specified

ADU State Law

What can you build in Oregon?

  • In urban growth areas, Oregon law requires cities and counties to allow at least one ADU on lots zoned for detached single-family homes.
  • Local jurisdictions cannot require owner occupancy for ADUs, but may regulate short-term or vacation rentals.
  • There are no statewide limits on ADU size, height, setbacks, lot size, or floor area ratio. Local zoning rules apply.
  • Parking requirements, if any, are set by the local jurisdiction, subject to state limitations.
  • Some cities may allow more than one ADU per lot, depending on local code.
  • Oregon law does not require counties to allow ADUs in rural residential zones. Whether an ADU is allowed depends on county zoning.
  • ADUs in rural residential areas cannot be used for short-term or vacation rentals.
  • Additional requirements may apply related to wildfire risk, water supply, septic capacity, and fire access.
  • Counties may impose additional restrictions beyond state law or choose not to allow ADUs at all.
  • If a county allows ADUs, state law imposes strict limits, including a minimum 2-acre lot size, a maximum ADU size of 900 sq ft, a location within 100 ft of the primary dwelling, and a limit of one ADU per parcel.

What's allowed on your lot?

These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.

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Is your property eligible for an ADU?

ADU rules in other Oregon municipalities

Rules change at the town line. Check the municipality your property is actually in.

Gilliam County

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