ADUs are allowed in Harris Township (Centre)Types:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Harris Township (Centre), PA
Is your property eligible for an ADU?
# of Properties
2,485
Owner-occupied
73%
Zoning districts
15
Median Lot Size
0.30 acres
Avg Income
$107,427
Residential Types:
2,485 housing units
Single Family
2%
Other
98%
Zoning Districts:
2,904 parcels · 15 districts
R-1
46%(1,339)
AR
13%(378)
PRD
12%(353)
A
10%(296)
Other
19%(538)
ADU Rules
What can you build in Harris Township (Centre), PA?
Harris Township (Centre), 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: By Right
Interior / Attached ADU Size Limits
- –Maximum internal accessory dwelling unit size of 1,000 sq ft
- –Internal accessory dwelling unit must be smaller than the principal dwelling’s floor area
Detached ADU Size Limits
- –Detached ADUs are not permitted; maximum allowed area is 0 sq ft.
Owner Occupancy
- –Owner-occupancy is not required.
Parking
- –2 off-street spaces per ADU; on the same lot unless an abutting-lot agreement allows; Village District may allow on another lot within 66 ft with conditions; no transit-based reductions or blanket waivers.
Rental Restrictions
- –Short-term rentals must be owner-occupied; stays 1–29 days.
- –Cap of 120 days per calendar year; non-owner-occupied short-term rentals prohibited (except where legally nonconforming as of 2025-12-08).
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.
Centre County