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ADUs are allowed in St Joseph
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for St Joseph, MO

Is your property eligible for an ADU?

# of Parcels
31,222
Zoning districts
34
Median Parcel Size
0.21 acres
Zoning Districts:
31,172 parcels · 34 districts
R-1A
39%(12,215)
R-1B
24%(7,422)
R-2
12%(3,731)
R-4
8%(2,499)
Other
17%(5,305)

ADU Rules

What can you build in St Joseph, MO?

St Joseph, MO follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Parking

  • No ADU-specific minimum/maximum. Table 31-053 requires 2 spaces per dwelling for one/two-family dwellings citywide; for uses not listed, the Director of Community Services determines required spaces; the Board of Adjustment may grant special exceptions from minimum.

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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Is your property eligible for an ADU?

ADU rules in other Missouri municipalities

Rules change at the town line. Check the municipality your property is actually in.

Buchanan County