Millcreek, PA Accessory Structures: Shed & Carport Rules (2026)

Section 145-27 of the Millcreek Township Code governs sheds, detached garages and other accessory structures. Under subsection F, all accessory structures require a permit, except one-story detached structures whose Gross Floor Area does not exceed 100 square feet. An exempt shed is not free of rules: it must still comply with the Township's Stormwater Management Ordinance, the Floodplain Ordinance and the general regulations of Chapter 145. Subsection E limits any residential lot to two accessory structures of 100 square feet or less.

Placement is covered by subsection C. Accessory structures meet the setbacks of the underlying zoning district. In residential zoning districts, a structure can sit two feet from the lot boundary line, but only if it is at least 10 feet to the rear of the dwelling and at least five feet from a porch, patio or deck attached to the dwelling. The measurement is taken in a radius from the nearest point of the residence. A structure within 10 feet of the principal structure is treated as attached and must meet every required setback. Subsection B bars building any accessory structure before construction of the principal structure has commenced, and bars living space in one unless Chapter 145 provides otherwise. Subsection H sets the 20-foot height maximum in all residential and mixed use districts.

Detached garages and accessory structures in the CR, R1, R2, R3, MU-1, MU-2, I1 and I2 districts carry extra limits under subsection I: no closer than nine feet to a dwelling on an adjoining lot, and no use for vehicle sales, rental, service and repair, which does not cover repairs to the occupant's own vehicles. A structure of 100 square feet or less without a permanent foundation must still meet all other requirements of the chapter. Subsection G adds that no use conducted in an accessory structure can violate the permitted uses of the district.