ADUs are allowed in Saint PaulTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Saint Paul, MN
Is your property eligible for an ADU?
# of Properties
77,443
Owner-occupied
76%
Zoning districts
39
Avg Home Value
$405,948
Median Lot Size
0.14 acres
Avg Income
$90,691
Residential Types:
77,443 housing units
Single Family
77%
2-3 Family
8%
Apts (4+ units)
3%
Other
12%
Zoning Districts:
83,435 parcels · 39 districts
H1
51%(42,452)
H2
26%(21,501)
RM2
7%(5,899)
T2
3%(2,268)
Other
14%(11,315)
ADU Rules
What can you build in Saint Paul, MN?
Saint Paul, MN 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: By Right
Interior / Attached ADU Size Limits
- –Maximum internal in-home apartment size is the greater of 800 sq ft or 75% of the main home’s floor area.
Detached ADU Size Limits
- –Maximum detached ADU size is 800 sq ft or 75% of the principal dwelling’s floor area, whichever is greater.
Max Units
- –2 ADUs per zoning lot for a one-family dwelling; if two are built, at least one must be detached, unless at least 50% of the principal dwelling's floor area is retained, in which case both ADUs may be attached.
- –1 ADU per one-family dwelling within a cluster development.
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –No minimum required; max 2.5 spaces per ADU; exceptions: within 0.25 mi of LRT/BRT/streetcar or in B4/B5 districts = 2 spaces per ADU; Ford districts = 2 spaces per dwelling unit (supersedes Sec. 63.207).
Rental Restrictions
- –Short-term rentals (<30 days) limited: max 1 STR per RL–H1 zoning lot; in other districts, 1 STR or up to 50% of units (max 4); no more than 1 rental per day; no commercial events or exterior signs. Long-term renting: none specified.
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 Minnesota municipalities
Rules change at the town line. Check the municipality your property is actually in.
Ramsey County