ADUs are allowed in TangentTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Tangent, OR
Is your property eligible for an ADU?
# of Properties
333
Owner-occupied
65%
Zoning districts
8
Avg Home Value
$461,023
Median Lot Size
0.25 acres
Avg Income
$92,382
Residential Types:
333 housing units
Apts (4+ units)
1%
Other
99%
Zoning Districts:
490 parcels · 8 districts
RS-10
29%(142)
RM-6
23%(114)
CC
14%(68)
EFU
12%(60)
Other
22%(106)
ADU Rules
What can you build in Tangent, OR?
Tangent, 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 floor area for an Internal Accessory Dwelling Unit (in-home apartment) is 800 sq ft.
Detached ADU Size Limits
- –Maximum floor area of 800 sq ft for a detached accessory dwelling unit (backyard cottage).
Max Units
- –Single-family lots (RS-10, RM-10, RM-6): 1 ADU per lot.
- –Duplex/multifamily lots: none specified.
Owner Occupancy
- –Owner must occupy the primary or the accessory dwelling unit.
Parking
- –No ADU-specific parking requirement; citywide rule: 2 spaces per dwelling for one- and two-family uses; ADU is an accessory to single-family dwelling; no separate waivers or reductions stated.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
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.
Linn County