ADU rules for Mt Lebanon Township (Allegheny)
Accessory Dwelling Unit (ADU) Rules for Mt Lebanon Township (Allegheny), PA
Is your property eligible for an ADU?
# of Properties
11,605
Owner-occupied
87%
Zoning districts
17
Avg Home Value
$226,182
Median Lot Size
0.18 acres
Avg Income
$140,993
Residential Types:
11,605 housing units
Single Family
87%
2-3 Family
3%
Apts (4+ units)
1%
Condos
5%
Other
3%
Zoning Districts:
12,033 parcels · 17 districts
R-2
52%(6,313)
R-1
30%(3,556)
R-4
5%(643)
R-3
5%(574)
Other
8%(947)
ADU Rules
What can you build in Mt Lebanon Township (Allegheny), PA?
Mt Lebanon 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: Not addressed in the local bylaw
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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