ADUs are allowed in SmyrnaTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Smyrna, TN
Is your property eligible for an ADU?
# of Parcels
18,883
Zoning districts
26
Avg Parcel Value
$678,992
Median Parcel Size
0.29 acres
Zoning Districts:
17,950 parcels · 26 districts
R-3
39%(6,993)
PRD
24%(4,280)
R-1
14%(2,481)
R-2
9%(1,604)
Other
14%(2,592)
ADU Rules
What can you build in Smyrna, TN?
Smyrna, 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: Conditional Use Permit
Interior / Attached ADU Size Limits
- –Maximum size is the lesser of 800 sq ft or 50% of the principal dwelling’s gross floor area.
Detached ADU Size Limits
- –Maximum size is the lesser of 800 sq ft or 50% of the principal dwelling’s gross floor area; on residential lots under 2 acres, the ADU plus other accessory structures together may not exceed 30% of the principal building’s gross floor area (ADU limited to the remaining allowance).
Max Units
- –1 ADU per lot (single-family detached).
- –Duplex, multifamily, and other principal residential structures: none specified.
Owner Occupancy
- –Owner-occupancy not required
Parking
- –1 space/ADU; max 2 spaces; exceptions: in Special Areas 3–9 of the Downtown Collierville Small Area Plan for accessory residential uses (in conjunction with a detached residential use), 1–2 spaces.
Rental Restrictions
- –Minimum 30-day leases; max 11 individuals per calendar year; deed restrictions required before permits.
- –Short-term rentals prohibited town-wide.
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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Is your property eligible for an ADU?
ADU rules in other Tennessee municipalities
Rules change at the town line. Check the municipality your property is actually in.
Rutherford County