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ADUs are allowed in Unincorporated St. Louis
Types:DetachedInternal

Accessory Dwelling Unit (ADU) Rules for Unincorporated St. Louis, MN

Is your property eligible for an ADU?

# of Properties
39,904
Owner-occupied
70%
Zoning districts
86
Avg Home Value
$244,132
Median Lot Size
3.46 acres
Avg Income
$85,207
Residential Types:
39,904 housing units
Single Family
51%
Other
49%
Zoning Districts:
87,149 parcels · 86 districts
FAM-3
15%(12,765)
FAM-1
15%(12,711)
MU-4
12%(10,849)
SMU-7
10%(8,632)
Other
48%(42,192)

ADU Rules

What can you build in Unincorporated St. Louis, MN?

Unincorporated St. Louis, MN follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

Detached ADU Size Limits

  • –Maximum size of 700 sq ft

Max Units

  • –1 ADU per lot or parcel

Owner Occupancy

  • –No owner-occupancy requirement.

Parking

  • –No ADU-specific parking ratios; general off-street parking required for all new parcels; ADUs in short-term rentals require on-site parking; no parking in road right-of-way.

Rental Restrictions

  • –Shoreland: short-term rental only with permit on file as part of the overall property; ADU cannot be rented separately.
  • –Nonshoreland: detached ADU cannot be rented (no short- or long-term).
  • –No more than one rental dwelling unit per parcel may be rented.

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 Minnesota municipalities

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

St. Louis County

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