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ADUs are allowed in Charlestown Township (Chester)
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.

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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Is your property eligible for an ADU?

ADU rules in other Pennsylvania municipalities

Rules change at the town line. Check the municipality your property is actually in.

Chester County

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