ADUs are allowed in Guilford Township (Franklin)Types:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Guilford Township (Franklin), PA
Is your property eligible for an ADU?
# of Properties
6,549
Owner-occupied
73%
Zoning districts
12
Avg Home Value
$22,987
Median Lot Size
0.42 acres
Avg Income
$85,685
Residential Types:
6,549 housing units
Single Family
89%
Apts (4+ units)
1%
Other
10%
Zoning Districts:
7,530 parcels · 12 districts
R1
55%(4,135)
AR
25%(1,853)
R2
12%(897)
C
7%(537)
Other
1%(108)
ADU Rules
What can you build in Guilford Township (Franklin), PA?
Guilford Township (Franklin), 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: Special Permit
Interior / Attached ADU Size Limits
- –Maximum size of 40% of the principal dwelling’s habitable floor area; Special Exception required.
Detached ADU Size Limits
- –Maximum size of 40% of the habitable floor space of the principal dwelling
Max Units
- –Single-family detached (owner-occupied) lots: 1 ADU per lot (in the principal dwelling or within a portion of an accessory building).
- –Village Overlay Zone (VO), single-family detached: 1 accessory building apartment per lot by special exception/conditional use; not counted toward maximum density.
Owner Occupancy
- –Principal dwelling must be owner-occupied.
Parking
- –1 space/ADU; in addition to those required by other uses on the property; no transit or proximity-based reductions; applies to accessory apartments via special exception in AR and Residential zones
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.
Franklin County