

ADUs are allowed in MadisonvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Madisonville, KY
Is your property eligible for an ADU?
# of Properties
7,978
Owner-occupied
52%
Zoning districts
14
Avg Home Value
$112,975
Median Lot Size
0.30 acres
Avg Income
$59,545
Residential Types:
7,978 housing units
Other
100%
Zoning Districts:
9,856 parcels · 14 districts
MDR
51%(5,003)
LDR
27%(2,621)
GC
8%(813)
HDR
6%(606)
Other
8%(813)
ADU Rules
What can you build in Madisonville, KY?
Madisonville, KY 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 internal ADU size of 800 sq ft.
- –Maximum internal ADU size of 40% of the principal dwelling’s living space (excludes garage/porch); not applied to homes 1,000 sq ft or smaller.
- –For principal dwellings with 1,000 sq ft or less of living space, maximum internal ADU size of 400 sq ft.
Detached ADU Size Limits
- –Maximum ADU size: 40% of principal dwelling living space or 800 sq ft, whichever is smaller; if the principal dwelling is 1,000 sq ft or less, maximum 400 sq ft
Owner Occupancy
- –Owner must occupy either the principal dwelling or the ADU.
Parking
- –0 spaces minimum; max not stated; exceptions: ADUs only on single-family lots; single-family/duplex lots exempt from accessible parking; general citywide parking standards apply.
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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