ADUs are allowed in Unincorporated OklahomaTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Oklahoma, OK
Is your property eligible for an ADU?
# of Properties
8,585
Owner-occupied
78%
Zoning districts
22
Avg Home Value
$360,358
Median Lot Size
1.98 acres
Avg Income
$114,211
Residential Types:
8,585 housing units
Residential
100%
Zoning Districts:
10,368 parcels · 22 districts
R-2
57%(5,933)
R-1
21%(2,169)
PUD
12%(1,217)
R-0
6%(652)
Other
4%(397)
ADU Rules
What can you build in Unincorporated Oklahoma, OK?
Unincorporated Oklahoma, OK 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 internal accessory dwelling unit size is 950 sq ft of floor area.
Detached ADU Size Limits
- –Maximum size of 950 sq ft for a detached accessory dwelling unit
Max Units
- –1 ADU per parcel (detached, attached, or internal)
Owner Occupancy
- –No owner-occupancy requirement for ADUs.
Parking
- –1 space/ADU; waived if street frontage at least 26 ft or ADU ≤ 600 sq ft; on paved, uncurbed streets, 1 space required; no max; garage spaces may count toward ADU parking if principal dwelling's parking is also met; no new parking in front of the principal dwelling; improved alley may provide primary access.
Rental Restrictions
- –Short-term rentals (<30 days) allowed only if the ADU is on the host's parcel with the host occupying the primary residence at rental time; a Special Exception is required; STRs are capped at 10% of dwellings per block and must meet license, parking, and code requirements.
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 Oklahoma municipalities
Rules change at the town line. Check the municipality your property is actually in.
Oklahoma County