

ADUs are allowed in Unincorporated RobertsonTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Robertson, TN
Is your property eligible for an ADU?
# of Properties
12,320
Owner-occupied
66%
Zoning districts
24
Avg Home Value
$306,516
Median Lot Size
2.27 acres
Avg Income
$92,848
Residential Types:
12,320 housing units
Residential
100%
Zoning Districts:
16,536 parcels · 24 districts
AG-2
79%(13,057)
R-40
13%(2,105)
R-30
3%(560)
RP-80
2%(401)
Other
2%(413)
ADU Rules
What can you build in Unincorporated Robertson, TN?
Unincorporated Robertson, TN follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Special Permit
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum size is the greater of 1,000 sq ft or 50% of the first-floor area of the principal dwelling
Detached ADU Size Limits
- –Maximum size of 1,000 sq ft or 50% of the primary dwelling’s first-floor area, whichever is greater
Max Units
- –1 ADU per single-family lot
Owner Occupancy
- –ADU must be owned by the same person as the principal dwelling.
Parking
- –2 spaces/ADU; no max stated. Off-street parking must be on the owner's property (not street ROW) and within 60 ft of the dwelling; ADU may not have a separate driveway from the principal dwelling.
Rental Restrictions
- –ADUs cannot be used for short-term/vacation rentals; Bed & Breakfasts must be within the primary residence and not in spaces specifically constructed or remodeled for rental.
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.
Robertson County