ADUs are allowed in Unincorporated MontgomeryTypes:Detached
Types:Detached
Accessory Dwelling Unit (ADU) Rules for Unincorporated Montgomery, TN
Is your property eligible for an ADU?
# of Parcels
29,300
Zoning districts
28
Avg Parcel Value
$1,111,199
Zoning Districts:
29,291 parcels · 28 districts
AG
43%(12,679)
R-1
40%(11,726)
R-1A
5%(1,507)
E-1
3%(983)
Other
8%(2,396)
ADU Rules
What can you build in Unincorporated Montgomery, TN?
Unincorporated Montgomery, TN follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: By Right
Detached ADU Size Limits
- –Maximum size must be less than the primary dwelling’s heated floor area; applies to a single-family lot of at least 5 acres.
Max Units
- –Farm employee housing: 1 dwelling per 100 acres per parcel.
- –Caretaker residence: 1 per parcel; Guest house: 1 per parcel.
- –Residential districts: only 1 residential building per lot.
Owner Occupancy
- –Primary dwelling must be owner-occupied.
Rental Restrictions
- –Detached guest house shall not be rented or offered for rent; caretaker residence limited to owners or employees (no public 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.
Montgomery County