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.
Town Code Β§68 sets height at 35 ft / 2.5 stories for residences. Business districts vary 35-50 ft. Industrial up to 60 ft. Height measured from average pre-existing grade to midpoint of pitched roof or top of flat roof/parapet. Chimneys, antennas, mechanical penthouses exempt up to 10 ft above roof. Airport overlay near Long Island MacArthur Airport imposes FAA Part 77 surface restrictions limiting height further.
Exceeding height without variance: stop work order and removal requirement. Structures in airport approach surface without FAA determination: federal violation.
Islip, NY
Islip Town Code Chapter 40 establishes quiet hours from 10 PM to 7 AM weekdays and 10 PM to 8 AM weekends. Unreasonable noise audible at 50 feet from a resid...
Islip, NY
Islip Town Code Β§68-416 prohibits parking commercial vehicles over 10,000 lbs GVW or with exterior signage on residential lots or streets overnight. One serv...
Islip, NY
Islip Town Code Β§52-6 defines abandoned vehicle as unregistered, inoperable, or parked over 72 hours on public way. Town may tow after 48-hour notice tag. NY...
Islip, NY
All Islip dwellings require working smoke alarms on every story and outside each sleeping area per 19 NYCRR 1225 (FCNYS 915). Homes built or sold after April...
Islip, NY
Property owners in Islip must maintain defensible space around structures, particularly in Pine Barrens-adjacent areas like Central Islip, Holtsville, and Ro...
Islip, NY
Islip permits recreational fire pits under NY Uniform Fire Prevention Code (19 NYCRR 1225) enforced by the Islip Fire Marshal. Pits must be 25 ft from struct...
Side-by-side rule comparisons with other cities in Suffolk County.
See how other cities in Suffolk County handle structure height limits.
See how Islip's structure height limits rules stack up against other locations.
Quick Compare
Help us keep this page accurate. If you notice an error or outdated information, let us know.