ADUs are allowed in McCandless Township (Allegheny)Types:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for McCandless Township (Allegheny), PA
Is your property eligible for an ADU?
# of Properties
10,907
Owner-occupied
87%
Zoning districts
12
Avg Home Value
$216,318
Median Lot Size
0.33 acres
Avg Income
$128,545
Residential Types:
10,907 housing units
Single Family
82%
2-3 Family
1%
Apts (4+ units)
1%
Condos
10%
Other
6%
Zoning Districts:
11,382 parcels · 12 districts
R-L
44%(4,967)
R-M
34%(3,903)
R-VL
16%(1,795)
M-N
3%(321)
Other
3%(396)
ADU Rules
What can you build in McCandless Township (Allegheny), PA?
McCandless 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: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Internal Accessory Dwelling Unit (In-Home Apartment): maximum size of 1,000 sq ft.
- –Internal Accessory Dwelling Unit (In-Home Apartment): maximum size is 50% of the principal dwelling’s gross floor area.
Detached ADU Size Limits
- –Maximum size of 1,000 sq ft for a detached ADU (Backyard Cottage).
- –Maximum size of 50% of the principal dwelling unit Gross Floor Area for a detached ADU (Backyard Cottage).
Max Units
- –0 per lot for two-family/multifamily (not permitted).
- –Single-family: none specified.
- –ADU type: none specified.
Owner Occupancy
- –Owner-occupancy required: occupant must reside in main home or ADU.
Parking
- –On-site parking required per off-street parking rules (Article 1304); no numeric ADU-specific standard stated.
Rental Restrictions
- –Short-term rentals (<30 days) prohibited; no long-term lease terms specified.
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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