

ADUs are allowed in DouglasTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Douglas, WY
Is your property eligible for an ADU?
# of Properties
2,453
Owner-occupied
64%
Zoning districts
15
Avg Home Value
$204,439
Median Lot Size
0.19 acres
Avg Income
$86,184
Residential Types:
2,453 housing units
Residential
100%
Zoning Districts:
2,937 parcels · 15 districts
R-1
53%(1,552)
R-2
11%(320)
R-3
8%(231)
B-1
7%(195)
Other
22%(639)
ADU Rules
What can you build in Douglas, WY?
Douglas, 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 800 sq ft for an internal or attached accessory dwelling unit.
Detached ADU Size Limits
- –Maximum detached accessory dwelling unit size is 800 square feet of total floor area.
- –Detached ADU must also fit within the zone’s accessory-building size cap (the larger of the zone’s base cap or 75% of the principal building’s footprint).
Owner Occupancy
- –No owner-occupancy requirement.
Parking
- –1 off-street space per ADU; space must be on the same property and shown on the residential site plan; on-street parking cannot count toward the requirement unless approved in a development plan.
Rental Restrictions
- –Short-term rentals require a conditional use permit; limits include a 1,000 ft school buffer (unless authorized by City Council), no more than 2 STRs per block in residential zones, no subletting, nontransferable permits, occupancy max of three persons per sleeping room, and one off-street parking space; Long-term rentals allowed.
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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