ADUs are allowed in Hamilton TownshipTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Hamilton Township, OH
Is your property eligible for an ADU?
# of Properties
11,026
Owner-occupied
80%
Zoning districts
19
Median Lot Size
0.27 acres
Avg Income
$120,742
Residential Types:
11,026 housing units
Single Family
90%
Condos
2%
Other
8%
Zoning Districts:
12,621 parcels · 19 districts
R-1
42%(5,335)
R-3
26%(3,292)
R-4
16%(2,056)
R-2
10%(1,230)
Other
6%(708)
ADU Rules
What can you build in Hamilton Township, OH?
Hamilton 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: By Right
Interior / Attached ADU Size Limits
- –Maximum size of 35% of the principal dwelling’s gross floor area for an internal/attached accessory apartment.
Detached ADU Size Limits
- –Maximum detached accessory dwelling unit size is 35% of the principal dwelling's total gross floor area.
Max Units
- –1 ADU per single-family lot (may be internal/attached or in a detached structure).
Owner Occupancy
- –Owner must occupy the principal dwelling
Parking
- –1 space per ADU (off-street, in addition to principal dwelling); must be on the same lot; off-site parking cannot count toward ADU requirements; maximum 2 spaces
Rental Restrictions
- –Short-term/transient rentals not permitted for ADUs.
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.
Warren County