ADUs are allowed in Upper Macungie Township (Lehigh)Types:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Upper Macungie Township (Lehigh), PA
Is your property eligible for an ADU?
# of Properties
7,810
Owner-occupied
84%
Zoning districts
14
Avg Home Value
$285,951
Median Lot Size
0.37 acres
Avg Income
$126,402
Residential Types:
7,810 housing units
Single Family
95%
Apts (4+ units)
2%
Other
2%
Zoning Districts:
8,675 parcels · 14 districts
R2
48%(4,170)
R3
18%(1,574)
R1
14%(1,255)
R5
5%(420)
Other
14%(1,256)
ADU Rules
What can you build in Upper Macungie Township (Lehigh), PA?
Upper Macungie Township (Lehigh), 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: Not addressed in the local bylaw
Interior / Attached ADU Size Limits
- –Maximum size equals the preexisting dwelling’s gross floor area minus 800 sq ft retained for the principal unit; ADU not permitted if the dwelling is under 1,500 sq ft.
Max Units
- –Single-family detached/semidetached: 1 internal/attached ADU per lot
- –Max 2 total dwellings after conversion
Owner Occupancy
- –One unit must be owner-occupied or relative-occupied for 36 months.
Parking
- –2 spaces per dwelling unit; no maximum stated; Board may reduce via conditional use; accessory-apartment conversions may not require 4+ off-street spaces in the required front yard; 1 space per 1-bedroom/efficiency conversion applies to conversion apartments, not accessory.
Rental Restrictions
- –Apartment for Care of Relative units may not be rented; 'Such apartment shall not generate rental income,' occupancy limited to a relative and must be reconverted/removed when no longer occupied by that relative.
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.
Lehigh County