ADUs are allowed in JacksonvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Jacksonville, OR
Is your property eligible for an ADU?
# of Properties
1,597
Owner-occupied
42%
Zoning districts
21
Avg Home Value
$565,791
Median Lot Size
0.23 acres
Avg Income
$112,777
Residential Types:
1,597 housing units
Single Family
86%
Other
13%
Zoning Districts:
1,839 parcels · 21 districts
SFR-6
17%(320)
MF
16%(297)
SFR-8
14%(259)
PUD-5.5
10%(181)
Other
43%(782)
ADU Rules
What can you build in Jacksonville, OR?
Jacksonville, 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 1,000 sq ft for an internal accessory dwelling unit (in-home apartment).
- –Maximum size of 60% of the primary dwelling’s living space for an internal accessory dwelling unit (in-home apartment).
Detached ADU Size Limits
- –Maximum size of 1,000 sq ft for a detached accessory dwelling unit
- –Maximum size limited to 60% of the primary unit's living space (habitable area)
Max Units
- –SF: 1 ADU per lot; HR: 1 ADU per parcel
Owner Occupancy
- –Owner occupancy is not required.
Parking
- –0 spaces per ADU; no parking maximum; any residential parking must be on the same lot (off-site parking not allowed); 0 spaces for dwellings under 750 sq ft
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.
Jackson County