

ADUs are allowed in Lower Swatara Township (Dauphin)Types:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Lower Swatara Township (Dauphin), PA
Is your property eligible for an ADU?
# of Parcels
3,245
Zoning districts
21
Median Parcel Size
0.33 acres
Zoning Districts:
3,255 parcels · 21 districts
R-U
38%(1,244)
R-S
22%(732)
R-M
20%(637)
R-A
5%(175)
Other
14%(467)
ADU Rules
What can you build in Lower Swatara Township (Dauphin), PA?
Lower Swatara Township (Dauphin), PA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Special Permit
- –Detached ADU: Conditional Use Permit
Interior / Attached ADU Size Limits
- –Maximum size of 400 sq ft
- –Maximum size of 30% of the principal dwelling’s total floor area
Max Units
- –1 ADU per single-family detached lot
Owner Occupancy
- –Owner must occupy at least one dwelling unit on premises
Parking
- –3 off-street spaces total for the lot with an accessory apartment; spaces must be on the same lot; overrides the general 2 spaces per single-family dwelling rule; no maximum stated
Rental Restrictions
- –Renting to unrelated tenants prohibited; occupancy limited to relatives (by marriage or blood).
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.
Dauphin County
Derry Township (Dauphin)East Hanover Township (Dauphin)Gratz Borough (Dauphin)Harrisburg City (Dauphin)Highspire Borough (Dauphin)Hummelstown Borough (Dauphin)Londonderry Township (Dauphin)Lower Paxton Township (Dauphin)Middle Paxton Township (Dauphin)Royalton Borough (Dauphin)South Hanover Township (Dauphin)Susquehanna Township (Dauphin)Swatara Township (Dauphin)Unincorporated DauphinWashington Township (Dauphin)West Hanover Township (Dauphin)