ADUs are allowed in NashvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Nashville, TN
Is your property eligible for an ADU?
# of Properties
219,943
Owner-occupied
69%
Zoning districts
104
Avg Home Value
$640,903
Median Lot Size
0.20 acres
Avg Income
$96,434
Residential Types:
219,943 housing units
Single Family
70%
2-3 Family
3%
Apts (4+ units)
4%
Other
22%
Zoning Districts:
275,736 parcels · 104 districts
RS10
14%(39,254)
R10
12%(31,987)
SP
7%(19,267)
RS7.5
7%(19,034)
Other
60%(166,194)
ADU Rules
What can you build in Nashville, TN?
Nashville, TN 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 25% of the principal dwelling’s gross floor area (excluding garage and utility space).
Detached ADU Size Limits
- –Maximum living space of 700 sq ft for a detached accessory dwelling unit
Max Units
- –DADU: 1 per lot; Accessory apartment: 1 per lot; JADU: none specified
Owner Occupancy
- –One of the two dwellings must be owner-occupied.
Parking
- –Min 0; max 1 (UZO); Outside UZO: 1 space/ADU; No parking required in UZO or DTC
Rental Restrictions
- –Short-term rentals prohibited in the DADU overlay; owner-occupied short-term rentals not permitted; attached ADU: residence may not be rented.
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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Learn the key rules and size limits for ADUs
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ADU rules in other Tennessee municipalities
Rules change at the town line. Check the municipality your property is actually in.
Davidson County
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