ADUs are allowed in Oak RidgeTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Oak Ridge, TN
Is your property eligible for an ADU?
# of Properties
12,409
Owner-occupied
75%
Zoning districts
38
Avg Home Value
$329,324
Median Lot Size
0.38 acres
Avg Income
$83,628
Residential Types:
12,409 housing units
Residential
100%
Zoning Districts:
14,143 parcels · 38 districts
R-1-C
43%(6,133)
R-1-A
15%(2,068)
R-2
11%(1,566)
TND
8%(1,172)
Other
23%(3,204)
ADU Rules
What can you build in Oak Ridge, TN?
Oak Ridge, TN follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: By Right
Max Units
- –No per-lot ADU maximum specified in standard districts.
- –TND: Outbuilding may include a dwelling unit not exceeding the lesser of 800 square feet or 40% of the size of the principal dwelling.
Parking
- –Min 1.5 spaces/ADU (Downtown) and 2 citywide; Downtown max 1.5; exceptions: BZA may reduce but not below 1; Downtown reduction possible with demand analysis; mixed-use no on-site; shared/off-site parking allowed.
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 Tennessee municipalities
Rules change at the town line. Check the municipality your property is actually in.
Roane County