

ADUs are allowed in Unincorporated PlatteTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Unincorporated Platte, MO
Is your property eligible for an ADU?
# of Properties
12,374
Owner-occupied
88%
Zoning districts
27
Median Lot Size
0.47 acres
Avg Income
$122,241
Residential Types:
12,374 housing units
Apts (4+ units)
4%
Other
96%
Zoning Districts:
15,169 parcels · 27 districts
R-7
30%(4,496)
AG
24%(3,686)
R-25
9%(1,304)
RE
8%(1,155)
Other
30%(4,528)
ADU Rules
What can you build in Unincorporated Platte, MO?
Unincorporated Platte, MO 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: By Right
Detached ADU Size Limits
- –Maximum ADU size cannot exceed the existing principal single-family dwelling’s square footage (excluding any attached garage).
Max Units
- –1 ADU per parcel (AG/RE)
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –2 off-street spaces per ADU; share a single driveway with the principal dwelling; second driveway prohibited; gravel surface and ready before CO
Rental Restrictions
- –ADU restricted to occupancy by immediate family or guests; renting to unrelated tenants 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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