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.
Town Code Schedule of District Regulations caps principal plus accessory building footprint at 25 percent in most residential zones. Pools, decks over 12 inches, patios over 100 sq ft count as lot coverage. Driveways and walkways typically not counted in building coverage but count toward impervious surface for stormwater compliance. Larger lots (AAA) have stricter 20 percent caps to preserve suburban character. Waterfront overlay imposes additional limits.
Exceeding coverage: variance required or removal order. New impervious over 1 acre disturbed triggers NY SPDES General Permit requirement.
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 §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 §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 lot coverage limits.
See how Islip's lot coverage 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 If you notice an error or outdated information, let us know.