

ADUs are allowed in Hempfield Township (Westmoreland)Types:Internal
Types:Internal
Accessory Dwelling Unit (ADU) Rules for Hempfield Township (Westmoreland), PA
Is your property eligible for an ADU?
# of Properties
17,664
Owner-occupied
76%
Zoning districts
18
Avg Home Value
$22,685
Median Lot Size
0.34 acres
Avg Income
$86,269
Residential Types:
17,664 housing units
Residential
100%
Zoning Districts:
20,234 parcels · 18 districts
SR
63%(12,814)
A
17%(3,468)
VR
11%(2,166)
RC
3%(619)
Other
6%(1,167)
ADU Rules
What can you build in Hempfield Township (Westmoreland), PA?
Hempfield Township (Westmoreland), 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: Not permitted
Interior / Attached ADU Size Limits
- –Maximum 35% of the single-family home's livable floor area
Max Units
- –Single-family detached: 1 internal/attached ADU per lot
Owner Occupancy
- –Owner must occupy one of the units on the property.
Parking
- –No numeric ADU parking minimum or maximum; off-street parking must be on the same parcel; front-yard parking not allowed in residential areas except in a driveway to the dwelling/garage; general off-street parking applies.
Rental Restrictions
- –Accessory apartment must be owner-occupied; the other unit may only be occupied by a relative, prohibiting rentals to unrelated tenants.
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.
Westmoreland County