Franklin County, NC Accessory Structures: Shed & Carport Rules (2026)

UDC § 5.3.10, item 3, Accessory Structure, sets the baseline rules for sheds and other detached outbuildings in unincorporated Franklin County. No accessory building can go up before every permit and approval for the primary structure on the lot is issued, and the structure must follow the height regulations set elsewhere in Article 5. A detached accessory building or use cannot sit closer than 5 feet to the side or rear lot line or to any other building or mobile home, and it cannot encroach within 20 feet of a street right-of-way.

If an accessory building shares a common wall with the principal building, the code treats it as part of the principal building and holds it to the principal building's yard requirements instead; the same follows if the two are joined by a roof, breezeway, or portico. One accessory structure may sit in front of the principal structure, but only if it does not exceed half the principal structure's square footage, does not exceed its height, and still meets the front setback of the underlying zoning district, though on AR- or R-30-zoned parcels of at least five acres a larger front-facing accessory structure is allowed if it sits at least 100 feet back from the right-of-way.

Sheds also cannot be placed on easements (except utility substations) or built from Class A, B, or C manufactured homes or RVs. Violations run through the Administrator's UDC § 3.3 notice-and-correction process, backed by a civil penalty up to $500 per day and a possible Class 3 misdemeanor under § 3.4.2.