ADUs are allowed in Unincorporated Hood RiverTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Hood River, OR
Is your property eligible for an ADU?
# of Properties
1,073
Owner-occupied
63%
Zoning districts
45
Avg Home Value
$548,889
Median Lot Size
0.21 acres
Avg Income
$98,809
Residential Types:
1,073 housing units
Other
100%
Zoning Districts:
7,019 parcels · 45 districts
EFU
36%(2,493)
RR-2.5
12%(876)
R-1
8%(547)
R-17500
6%(428)
Other
38%(2,675)
ADU Rules
What can you build in Unincorporated Hood River, OR?
Unincorporated Hood River, OR follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum size of 900 sq ft of usable floor area for an internal or attached ADU
Detached ADU Size Limits
- –Maximum usable floor area of 900 sq ft for an ADU in the Parkdale Community (P‑R1).
Max Units
- –P-R1: Single-family — 1 ADU/lot (detached or attached/internal).
- –P-R1: Duplex — 0 ADUs (prohibited).
Parking
- –1 space per ADU; no ADU-specific reductions or waivers; required spaces must be maintained and located on the same or abutting lot.
Rental Restrictions
- –Short-term rentals are prohibited in ADUs; STRs must operate only within the primary dwelling (short-term = <30 days).
- –In Parkdale P-R1, no lot may contain both an ADU and a short-term rental.
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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ADU rules in other Oregon municipalities
Rules change at the town line. Check the municipality your property is actually in.
Hood River County