ADUs are allowed in Unincorporated DavidsonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Davidson, TN
Is your property eligible for an ADU?
# of Properties
8
Zoning districts
20
Zoning Districts:
57 parcels · 20 districts
R-1
23%(13)
R-2
16%(9)
C-1
11%(6)
C-2
9%(5)
Other
42%(24)
ADU Rules
What can you build in Unincorporated Davidson, TN?
Unincorporated Davidson, 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: Special Permit
Interior / Attached ADU Size Limits
- –Maximum size is 25% of the principal dwelling’s gross floor area (excluding garage and utility space).
Detached ADU Size Limits
- –Maximum DADU footprint: 750 sq ft on lots under 10,000 sq ft; 1,000 sq ft on lots 10,000 sq ft or larger.
Owner Occupancy
- –ADU must be owner-occupied by the same owner as the principal.
Parking
- –Outside UZO: 1 space/ADU; within UZO/DTC: no minimum; within UZO, table values act as a maximum (1/ADU). Detached ADUs: one driveway (max 12 ft); alley access required if available; no new street curb cuts.
Rental Restrictions
- –DADU: Short-term rentals prohibited. Accessory apartment: occupancy limited to specified family members; renting to unrelated tenants prohibited (covenant required).
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.
Davidson County