

ADUs are allowed in JeffersontownTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Jeffersontown, KY
Is your property eligible for an ADU?
# of Properties
1,404
Owner-occupied
21%
Zoning districts
20
Avg Home Value
$1,519,090
Median Lot Size
1.48 acres
Avg Income
$76,204
Residential Types:
1,404 housing units
2-3 Family
17%
Apts (4+ units)
73%
Other
10%
Zoning Districts:
11,260 parcels · 20 districts
R4
66%(7,405)
R5
9%(1,044)
PEC
6%(709)
R6
6%(626)
Other
13%(1,476)
ADU Rules
What can you build in Jeffersontown, KY?
Jeffersontown, KY 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: By Right
Detached ADU Size Limits
- –Maximum detached ADU building footprint of 1,000 sq ft; may increase up to 1.5 times the principal building’s footprint when in a Neighborhood or Village Form District.
Rental Restrictions
- –Rentals under 30 days prohibited unless approved as a short-term rental (STR); primary-residence STR allowed with special standards; non-primary-residence STR requires a Conditional Use Permit.
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 Kentucky municipalities
Rules change at the town line. Check the municipality your property is actually in.
Jefferson County