ADUs are allowed in CheyenneTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Cheyenne, WY
Is your property eligible for an ADU?
# of Parcels
27,968
Zoning districts
24
Avg Parcel Value
$400,108
Median Parcel Size
0.17 acres
Zoning Districts:
27,968 parcels · 24 districts
MR
65%(18,315)
LR
12%(3,230)
PUD
5%(1,422)
HR
5%(1,340)
Other
13%(3,661)
ADU Rules
What can you build in Cheyenne, WY?
Cheyenne, WY 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 size of 1,200 sq ft
- –Maximum size of 40% of the principal dwelling’s floor area
Detached ADU Size Limits
- –Maximum ADU size of 1,200 sq ft
- –Maximum ADU size of 40% of the principal dwelling unit’s habitable floor area (excluding garages and porches)
Max Units
- –1 ADU per lot on detached single-family lots; 1 ADU per main structure in Form-Based Code Transect Zones (T-zones).
Owner Occupancy
- –Owner-occupancy not required.
Parking
- –1 space/ADU; principal dwelling requires 2 spaces (total typically 3 on a 1-unit property); no parking in CBD/SS/BP/UU; reductions via credits and transit proximity within 600'; director may allow up to 125% with study
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 Wyoming municipalities
Rules change at the town line. Check the municipality your property is actually in.
Laramie County