ADUs are allowed in West Deer Township (Allegheny)Types:Detached
Types:Detached
Accessory Dwelling Unit (ADU) Rules for West Deer Township (Allegheny), PA
Is your property eligible for an ADU?
# of Properties
6,052
Owner-occupied
76%
Zoning districts
13
Avg Home Value
$129,463
Median Lot Size
0.33 acres
Avg Income
$91,196
Residential Types:
6,052 housing units
Single Family
75%
2-3 Family
2%
Apts (4+ units)
1%
Condos
6%
Other
16%
Zoning Districts:
6,511 parcels · 13 districts
R-2
36%(2,329)
R-3
29%(1,889)
R-4
15%(974)
C-2
7%(432)
Other
14%(887)
ADU Rules
What can you build in West Deer Township (Allegheny), PA?
West Deer Township (Allegheny), PA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Not addressed in the local bylaw
- –Detached ADU: By Right
Parking
- –No ADU-specific parking; general off-street parking applies; guest house on same lot has no parking standard.
Rental Restrictions
- –Detached ADU (on same lot): long-term rentals prohibited; shall not be used as a rental unit.
- –Short-term rentals prohibited for detached ADU; limited to single-family dwellings (detached ADU not eligible).
- –Internal/attached ADU: short-term rentals effectively prohibited; converting to a duplex allowed.
ADU State Law
What can you build in Pennsylvania?
- –Pennsylvania does not have a statewide ADU mandate; ADU rules are set by individual municipalities.
- –Building/fire codes are set statewide, but whether an ADU is allowed is local zoning.
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 Pennsylvania municipalities
Rules change at the town line. Check the municipality your property is actually in.
Allegheny County
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