ADUs are allowed in MillcreekTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Millcreek, UT
Is your property eligible for an ADU?
# of Properties
18,839
Owner-occupied
72%
Zoning districts
36
Avg Home Value
$777,805
Median Lot Size
0.20 acres
Avg Income
$119,751
Residential Types:
18,839 housing units
Single Family
98%
Apts (4+ units)
1%
Zoning Districts:
21,664 parcels · 36 districts
R-1-8
40%(8,746)
R-1-10
16%(3,387)
R-M
14%(3,097)
R-1-6
5%(1,129)
Other
24%(5,305)
ADU Rules
What can you build in Millcreek, UT?
Millcreek, UT 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
Detached ADU Size Limits
- –Detached ADU maximum size of 1,000 sq ft
- –Detached ADU size may not exceed the gross square footage of the existing main building
Max Units
- –Single-household (R-1/A): 1 ADU per lot (1 internal/attached OR 1 detached).
- –Duplex/multifamily/other zones: 0 ADUs.
Owner Occupancy
- –Owner occupancy required; ADU allowed on owner-occupied property.
Parking
- –1 space/ADU; no max; on-property parking required for all ADUs; conversions/noncomplying-structure expansions must meet off-street standards; internal ADUs follow Utah Code 10-9a-530
Rental Restrictions
- –Detached ADU: short-term rentals prohibited; Internal ADU: short-term rental prohibited (enforcement violation).
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.
Check my propertyHow can we help you?
Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs
Is your property eligible for an ADU?
ADU rules in other Utah municipalities
Rules change at the town line. Check the municipality your property is actually in.
Salt Lake County