

ADUs are allowed in EstacadaTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Estacada, OR
Is your property eligible for an ADU?
# of Properties
2,581
Owner-occupied
64%
Zoning districts
14
Avg Home Value
$505,023
Median Lot Size
0.17 acres
Avg Income
$101,200
Residential Types:
2,581 housing units
Single Family
89%
2-3 Family
4%
Apts (4+ units)
5%
Other
2%
Zoning Districts:
2,927 parcels · 14 districts
R-1
67%(1,970)
R-2
13%(389)
NCR
6%(163)
D
5%(143)
Other
9%(262)
ADU Rules
What can you build in Estacada, OR?
Estacada, 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 or the primary dwelling’s total habitable floor area, whichever is less (may be 1,200 sq ft if occupying the entire lowest floor).
Detached ADU Size Limits
- –Maximum ADU size is 900 sq ft or the primary home’s total habitable area, whichever is less.
Max Units
- –Single-family: 2 ADUs per lot
- –Duplex/triplex/fourplex/multi-family: 1 ADU per lot
- –Cottage cluster: 0 ADUs per lot (not allowed)
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –No additional off-street space for the first ADU; 1 space for a second ADU on a lot with a single-family dwelling; Downtown core: no minimum; elsewhere in Downtown may reduce minimums by 10% near transit (within 1,320 ft) and by 20% where sufficient adjacent on-street parking exists; ADU parking cannot be located in side or rear setbacks.
Rental Restrictions
- –Citywide STR cap: 15% of dwellings in residential districts; if cap is reached, an ADU cannot be permitted as a short-term rental.
- –STR approvals do not transfer with the property; a new owner must obtain approval to continue renting the ADU as an STR.
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.
Clackamas County