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ADU rules for Horsham Township (Montgomery)

Accessory Dwelling Unit (ADU) Rules for Horsham Township (Montgomery), PA

Is your property eligible for an ADU?

# of Properties
8,476
Owner-occupied
90%
Zoning districts
28
Avg Home Value
$193,506
Median Lot Size
0.30 acres
Avg Income
$150,290
Residential Types:
8,476 housing units
Single Family
94%
Apts (4+ units)
1%
Other
5%
Zoning Districts:
10,155 parcels · 28 districts
R-4
22%(2,200)
R-2
20%(2,038)
MR-1
13%(1,278)
MR-2
11%(1,157)
Other
34%(3,482)

ADU Rules

What can you build in Horsham Township (Montgomery), PA?

Horsham Township (Montgomery), PA follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

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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How can we help you?

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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.

Montgomery County

Browse addresses by ZIP in Horsham Township (Montgomery)