Irondequoit, NY Accessory Structures: Shed & Carport Rules (2026)

Section 235-13 of the Town of Irondequoit zoning chapter, in Article IV for the R-R, R-1, R-2 and R-3 Residential Districts, treats a shed as an accessory structure once it passes 30 square feet. The same list covers private garages, pergolas, gazebos, private swimming pools, decks, children's playhouses, tennis courts and animal shelters greater than 16 square feet. An accessory structure is allowed only in connection with a principal use that lawfully exists.

Placement. A detached accessory structure cannot be located in the front yard. On a corner lot it must sit behind the front building line of the principal structure as measured from either street. Detached accessory structures other than private garages must be no closer than four feet to the rear or side property lines and no closer than six feet to the principal building.

Height. A detached accessory structure other than a private garage cannot be higher than the principal structure or 12 feet, whichever is less.

Attachment. A structure attached to the principal structure, or within six feet of it, excluding attached decks, is treated as an integral part of that structure, so the front, side and rear setbacks for the district apply instead of the four foot rule.

Coverage and size. Accessory structures count toward lot coverage under § 235-13C(6), against the 25% cap in § 235-10. Storage structures larger than 200 square feet in floor area must meet the garage regulations in § 235-13D. Private garages have their own limits, including a 900 square foot maximum ground floor area and 12 foot height in R-1, R-2 and R-3. No business, occupation, service or residence is allowed in a private garage.