ADU rules for Lancaster City (Lancaster)
Accessory Dwelling Unit (ADU) Rules for Lancaster City (Lancaster), PA
Is your property eligible for an ADU?
# of Properties
16,246
Owner-occupied
60%
Zoning districts
27
Avg Home Value
$119,893
Median Lot Size
0.05 acres
Avg Income
$72,586
Residential Types:
16,246 housing units
Single Family
82%
2-3 Family
9%
Apts (4+ units)
5%
Condos
2%
Other
2%
Zoning Districts:
18,444 parcels · 27 districts
R3
60%(11,144)
R4
11%(2,108)
R2
10%(1,844)
MU
5%(1,014)
Other
13%(2,334)
ADU Rules
What can you build in Lancaster City (Lancaster), PA?
Lancaster City (Lancaster), 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
Parking
- –1 space/ADU (1 per dwelling/efficiency) in all districts except CB/CB1; CB/CB1: no minimum. Exceptions: ZHB may reduce/waive via special exception with a parking study in residential districts when on-site parking cannot be provided for a single-family lot or for a second unit in a separate building per §300-28A.
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.
Lancaster County