Building Setbacks & Zoning in Islip, NY (2026)
3 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
Islip Residence A district requires 40 ft front, 15 ft side (35 ft total), 40 ft rear setbacks under Town Code §68 Schedule of District Regulations. Residence AAA (large lot) requires 50/25/50 ft. Zoning Board of Appeals grants variances.
Building Setbacks: Setback Rules
Some RestrictionsStructure Height Limits
Islip limits single-family residential buildings to 35 ft and 2.5 stories in Residence districts. Accessory structures limited to 18 ft or the height of principal building, whichever is less. Measured from pre-construction grade.
Building Setbacks: Structure Height Limits
Some RestrictionsLot Coverage Limits
Islip Residence A district maximum lot coverage 25 percent (buildings only). Total impervious coverage limited by MS4 stormwater rules to 40-50 percent. Residence AAA: 20 percent building coverage.
Building Setbacks: Lot Coverage
Some RestrictionsLooking for Suffolk County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Islip city rules.
Building Setbacks & Zoning in Suffolk County →