ADUs are allowed in NewportTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Newport, OR
Is your property eligible for an ADU?
# of Properties
5,379
Owner-occupied
50%
Zoning districts
21
Avg Home Value
$510,293
Median Lot Size
0.14 acres
Avg Income
$70,310
Residential Types:
5,379 housing units
Single Family
23%
2-3 Family
10%
Apts (4+ units)
10%
Other
57%
Zoning Districts:
6,969 parcels · 21 districts
R-4
31%(2,127)
R-2
22%(1,532)
R-1
13%(892)
W-2
8%(554)
Other
27%(1,864)
ADU Rules
What can you build in Newport, OR?
Newport, 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 of 800 sq ft or 75% of the primary dwelling’s floor area, whichever is less; entire-level internal conversions may exceed 800 sq ft (but still subject to the 75% cap).
Detached ADU Size Limits
- –Maximum detached ADU size is 800 sq ft or 75% of the primary dwelling’s floor area, whichever is less.
Max Units
- –1 ADU per detached single-family dwelling (attached or detached ADU)
Owner Occupancy
- –Owner-occupancy not required.
Parking
- –No ADU parking minimum or maximum specified; uses not listed are determined by the Planning Director via the most comparable listed use or parking demand analysis, and on-street credits may reduce off-street requirements.
Rental Restrictions
- –Short-term rentals only in Vacation Rental Overlay (prohibited elsewhere); subject to citywide cap.
- –Detached ADU + house: STR limited to one building (either, not both).
- –Long-term rentals unrestricted.
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.
Lincoln County