ADUs are allowed in Unincorporated FranklinTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Franklin, TN
Is your property eligible for an ADU?
# of Properties
12,039
Owner-occupied
51%
Zoning districts
13
Avg Home Value
$239,163
Median Lot Size
1.23 acres
Avg Income
$69,171
Residential Types:
12,039 housing units
Residential
100%
Zoning Districts:
91 parcels · 13 districts
F
56%(51)
NZ
13%(12)
PUD-TH
8%(7)
R-1
5%(5)
Other
18%(16)
ADU Rules
What can you build in Unincorporated Franklin, TN?
Unincorporated Franklin, 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
Detached ADU Size Limits
- –Maximum detached ADU living space of 1,000 sq ft
Max Units
- –Single-family: 1 ADU per lot; Duplex: none specified; Multifamily: none specified
Owner Occupancy
- –Either the dwelling or the ADU must be owner-occupied.
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
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.
Franklin County