

ADUs are allowed in Union TownshipTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Union Township, OH
Is your property eligible for an ADU?
# of Properties
5,560
Owner-occupied
28%
Zoning districts
24
Avg Home Value
$510,475
Median Lot Size
0.06 acres
Avg Income
$94,243
Residential Types:
5,560 housing units
Single Family
3%
2-3 Family
3%
Apts (4+ units)
84%
Other
10%
Zoning Districts:
23,982 parcels · 24 districts
R-1A
40%(9,596)
R-PUD
19%(4,621)
SP-PUD
12%(2,848)
R-2
9%(2,124)
Other
20%(4,793)
ADU Rules
What can you build in Union Township, OH?
Union Township, OH 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: Conditional Use Permit
Max Units
- –1 ADU per parcel (A-1, R-1, R-1A, R-2, R-3, R-4).
Owner Occupancy
- –Owner must live in the principal dwelling or ADU.
Rental Restrictions
- –Detached ADU cannot be rented separately; Internal/Attached ADU cannot rent to unrelated tenants and short-term/vacation rentals are prohibited.
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 Ohio municipalities
Rules change at the town line. Check the municipality your property is actually in.
Butler County