

ADUs are allowed in Grand Blanc TownshipTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Grand Blanc Township, MI
Is your property eligible for an ADU?
# of Parcels
14,040
Zoning districts
19
Avg Parcel Value
$126,498
Zoning Districts:
13,878 parcels · 19 districts
R1
95%(13,199)
GC
1%(201)
NC
1%(118)
OS
1%(112)
Other
2%(248)
ADU Rules
What can you build in Grand Blanc Township, MI?
Grand Blanc Township, MI 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: Special Permit
Interior / Attached ADU Size Limits
- –Maximum size of 25% of the primary dwelling’s gross floor area
Detached ADU Size Limits
- –Maximum size of 25% of the primary dwelling’s size
Max Units
- –Attached/internal ADU: none specified.
- –Detached ADU: base max not specified; on lots >60 acres, up to 5 additional ADUs for caretakers/employees.
Owner Occupancy
- –Owner must occupy either ADU or primary dwelling
Rental Restrictions
- –Rentals to unrelated tenants prohibited; owner must occupy one unit and a family member or caretaker must occupy the other.
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
Is your property eligible for an ADU?
ADU rules in other Michigan municipalities
Rules change at the town line. Check the municipality your property is actually in.
Genesee County