

ADUs are allowed in Charlestown Township (Chester)Types:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Charlestown Township (Chester), PA
Is your property eligible for an ADU?
# of Properties
1,948
Owner-occupied
91%
Zoning districts
15
Avg Home Value
$313,099
Median Lot Size
0.79 acres
Avg Income
$213,859
Residential Types:
1,948 housing units
Other
100%
Zoning Districts:
2,403 parcels · 15 districts
FR
48%(1,142)
RC
13%(311)
PRD-3
11%(266)
PRD-2
9%(215)
Other
20%(469)
ADU Rules
What can you build in Charlestown Township (Chester), PA?
Charlestown Township (Chester), PA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: Conditional Use Permit
- –Detached ADU: Conditional Use Permit
Interior / Attached ADU Size Limits
- –Maximum size of 2,000 sq ft
- –Maximum size of 35% of the principal dwelling's gross habitable above-grade area (pre-ADU)
Detached ADU Size Limits
- –Maximum size is the lesser of 35% of the principal dwelling's gross habitable above-grade area (before ADU) or 2,000 sq ft.
Owner Occupancy
- –One of the two dwelling units must be owner-occupied.
Parking
- –1 off-street space per ADU (in addition to principal-dwelling spaces); no maximum. In the TND District, TND Design Standards apply; on-street frontage spaces may count toward required parking; parking is typically off alleys/rear unless stated otherwise in the TND Standards.
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.
Chester County
East Bradford Township (Chester)East Brandywine Township (Chester)East Caln Township (Chester)East Goshen Township (Chester)East Marlborough Township (Chester)East Nottingham Township (Chester)Easttown Township (Chester)East Vincent Township (Chester)East Whiteland Township (Chester)Kennett Township (Chester)Lower Oxford Township (Chester)New Garden Township (Chester)New London Township (Chester)Schuylkill Township (Chester)Tredyffrin Township (Chester)Upper Uwchlan Township (Chester)Uwchlan Township (Chester)West Caln Township (Chester)West Chester Borough (Chester)West Fallowfield Township (Chester)West Goshen Township (Chester)West Pikeland Township (Chester)West Sadsbury Township (Chester)West Vincent Township (Chester)