Building Setbacks & Zoning in Islip, NY (2026)
2 verified building setbacks & zoning rules for Islip, New York, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
In Islip's Business 3 District, buildings need a minimum 25-foot front yard setback from every street, 15 feet on a corner lot's side-street frontage, and accessory buildings need 35 feet: all subject to a stiffer arterial highway line where one applies.
Islip B3 District Front Yard Setback Is 25 Feet
Some RestrictionsCode of the Town of Islip § 68-311
A. Main building. All buildings, except one-family and two-family residences, hereafter erected, shall have a minimum front yard setback of 25 feet from all streets, unless arterial highway setback is greater (see Article XXXII), and except as otherwise provided (see § 68-311F). B. Corner lots. All main buildings hereafter erected on a corner lot shall have a front yard facing the side street. ...
Structure Height Limits
In Islip's Residence AAA District, the standard the Residence AA and Residence A Districts adopt by cross-reference, no principal building may exceed 35 feet or 2 1/2 stories, accessory structures top out at 14 feet, and flagpoles are capped at 18 feet. Residence B and Residence C Districts set their own, different limits.
Islip Residential Height Capped at 35 Feet, 2½ Stories
Some RestrictionsCode of the Town of Islip § 68-49
A. In a Residential AAA District, no principal building or structure shall be erected to a height in excess of 35 feet or 2 1/2 stories. B. Accessory structures shall not exceed 14 feet in height or shall be a maximum of one story, whichever is less. C. Flagpoles shall not exceed 18 feet in height.
Looking for Suffolk County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Islip city rules.
Building Setbacks & Zoning in Suffolk County →