ADUs are allowed in MoroTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Moro, OR
Is your property eligible for an ADU?
# of Properties
213
Owner-occupied
21%
Zoning districts
4
Avg Home Value
$138,711
Median Lot Size
0.23 acres
Avg Income
$63,333
Residential Types:
213 housing units
Single Family
77%
Other
23%
Zoning Districts:
322 parcels · 4 districts
R-5
64%(207)
C
18%(58)
A
17%(54)
M
1%(3)
ADU Rules
What can you build in Moro, OR?
Moro, 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 is 900 sq ft or 75% of the primary dwelling’s floor area, whichever is greater (full-floor conversions may occupy the entire level even if exceeding 900 sq ft).
Detached ADU Size Limits
- –Maximum detached ADU size is 900 sq ft or 75% of the primary dwelling’s total floor area, whichever is larger.
Max Units
- –Max 1 ADU/lot (detached or attached) for single-family, duplex, triplex/fourplex. JADU: none specified.
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –0 spaces per ADU; no off-street parking required; ADUs exempt from parking requirements.
Rental Restrictions
- –Short-term rentals in the R-5 zone require a temporary use permit; annual permit; must meet Section 4.16: disclose max occupants and parking in ads; limit on-street parking to spaces immediately adjacent; provide a local contact and comply with health/safety codes.
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.
Sherman County