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Franklin Township, PA Accessory Structures: ADU Owner Occupancy (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Requirement
owner must reside on the property
ADU location
principal structure or detached building
Also required
zoning permit and building permit
Adopted
Ord. 2019-01, 1/16/2019
Max penalty
$500 per day plus costs

Summary

Franklin Township, Chester County, Pennsylvania only allows an additional dwelling unit on a residential property where the owner actually resides, under Zoning Code § 27-1712.2; a property held only as a rental cannot add a second unit.

2. An additional dwelling unit shall be permitted only on a residential property where the owner of the property resides.

Full Breakdown

2. That owner-occupancy condition sits on top of the townshipwide ADU program set out in the rest of § 27-1712: the number of units a lot may add depends on lot size (one unit on parcels up to 10 acres, up to two on parcels of 10 acres or more), a detached accessory structure holding an ADU triggers land development review under § 22-202, the unit needs its own street address if it's in a detached structure, and it needs both a zoning permit and a building permit that meets the current Uniform Construction Code.

Because the requirement is that the owner resides on the property, an absentee landlord who does not live there cannot add a second unit for tenants; the ADU exists as an arrangement accessory to an owner-occupied home. 12, and driveway, parking and stormwater standards elsewhere in § 27-1712 all still apply.

Violations & Fines

An additional dwelling unit created or occupied without the property owner residing there, or without the required zoning and building permits, is a Chapter 27 zoning violation enforced under §§ 27-2303 and 27-2304: the Zoning Officer issues a written notice, and the Township can pursue a civil judgment of up to $500 per day plus court costs and attorney fees before a Magisterial District Judge if the violation isn't corrected.

Frequently Asked Questions

Can I rent out my whole house and also rent a separate ADU to a tenant?
No. Section 27-1712.2 permits an additional dwelling unit only on a residential property where the owner actually resides, so an absentee-owned rental property can't add one.
Does the owner have to live in the main house specifically?
Section 27-1712.2 requires only that the owner of the property resides there, without specifying which structure; the requirement is that an owner-occupant remains on site, not which unit they occupy.
What is the penalty for an ADU without owner residency?
It's a zoning violation under §§ 27-2303 and 27-2304, punishable by a civil judgment of up to $500 per day plus court costs before a Magisterial District Judge, on top of the Zoning Officer's power to order the unauthorized use discontinued.

Sources & Official References

Other rules in Franklin Township

All Franklin Township rules

Compare Franklin Township to another location·View the Pennsylvania accessory structures overview

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