ADU rules in Babylon, NY — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Babylon permits accessory apartments (ADUs) under Town Code Chapter 213 Zoning provisions. Owner must occupy the primary unit, unit must be registered with the town, and parking plus minimum square footage standards apply. Suffolk County has an accessory apartment program that allows conforming ADUs in single-family zones.
Babylon accessory apartment rules require owner-occupancy of either primary or accessory unit, one additional off-street parking space, minimum unit size of roughly 400 sq ft, and annual or biennial registration renewal. Detached ADUs are generally not permitted; apartments must be internal to the principal dwelling or attached. NY State considered statewide ADU legislation in 2022 (rejected) leaving local control in place.
Unregistered ADU or illegal two-family use: fines $250-$5,000 plus order to vacate nonconforming unit.
Babylon, NY
Aircraft noise from Republic Airport (FRG) in East Farmingdale is preempted by federal law. The Town of Babylon cannot regulate flight paths or aircraft oper...
Babylon, NY
Amplified music audible beyond the property line after 10 PM is prohibited in Babylon under Chapter 158. Outdoor concerts and commercial venues require a spe...
Babylon, NY
Construction and powered equipment work in Babylon is generally restricted to 7 AM to 7 PM Monday through Saturday, with no Sunday or holiday work without a ...
Babylon, NY
Babylon permits residential EV chargers as accessory to single-family homes without a special permit, though an electrical permit from the Division of Buildi...
Babylon, NY
Commercial vehicles over 10,000 lbs GVW or with commercial lettering cannot be parked on Babylon residential streets or in residential driveways overnight, p...
Babylon, NY
Vehicles parked on Babylon public streets for more than 48 hours or showing signs of abandonment (flat tires, expired plates, broken windows) can be tagged a...
Side-by-side rule comparisons with other cities in Suffolk County.
See how other cities in Suffolk County handle adu rules.
See how Babylon's adu rules 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 If you notice an error or outdated information, let us know.