ADUs are allowed in WentzvilleTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Wentzville, MO
Is your property eligible for an ADU?
# of Properties
16,220
Owner-occupied
86%
Zoning districts
39
Avg Home Value
$351,391
Median Lot Size
0.22 acres
Avg Income
$111,568
Residential Types:
16,220 housing units
Single Family
85%
Other
15%
Zoning Districts:
18,437 parcels · 39 districts
PD-R
37%(6,790)
R-1E
20%(3,775)
R-1D
19%(3,451)
PD-MXD
8%(1,481)
Other
16%(2,940)
ADU Rules
What can you build in Wentzville, MO?
Wentzville, MO 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
Detached ADU Size Limits
- –Maximum detached ADU size is 40% of the principal building’s total floor area in residential districts.
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 Missouri municipalities
Rules change at the town line. Check the municipality your property is actually in.
St. Charles County