Accessory Structures in Babylon, NY (2026)
4 verified accessory structures rules for Babylon, New York, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
An Accessory Apartment Review Board of nine Town of Babylon appointees hears every application and renewal, deciding whether to grant a special permit for a legal accessory apartment.
Town of Babylon Accessory Apartment Permits
Significant RestrictionsTown of Babylon Code § 153-14
The Two-Family Review Board created by L. L. No. 9-1979, adopted November 20, 1979, and amended by L. L. No 8-1992 on September 15, 1992, is now known as the "Accessory Apartment Review Board" and shall consist of nine members who shall be appointed by and serve at the pleasure of the Town Board. The nine-member Accessory Apartment Review Board (sometimes referred to in this article as the "Boa...
ADU Owner Occupancy
The Town of Babylon requires the homeowner to live on-site before granting an accessory apartment permit, and bars owners of other permitted properties from getting a second one.
Town of Babylon ADU Owner-Occupancy Rule
Some RestrictionsTown of Babylon Code § 153-18.A
The dwelling must be owner-occupied. No accessory apartment permit shall be awarded to an applicant where the same individual or individuals appear as the owner or co-owner of any interest in any other dwelling in the Town of Babylon that has been granted an accessory apartment permit. B. The dwelling must have adequate on-site parking spaces per dwelling unit. The parking spaces must be pav...
ADU Rental Restrictions
Town of Babylon accessory apartments must be at least 350 square feet, capped at three rooms, and can't sit in a separate building or in the home's cellar.
Town of Babylon Accessory Apartment Size Limits
Some RestrictionsTown of Babylon Code § 153-18.D
Each dwelling unit must have a minimum of 350 habitable square feet. One of the dwelling units shall be limited in size to a total of three rooms, not including a kitchen, a living room or bathrooms. No rental unit may be contained in any building or structure other than the main dwelling. No part of the rental unit may be contained in the cellar. This section shall apply to all new accessory a...
Shed & Carport Rules
Accessory buildings in the Town of Babylon's A Residence District top out at 500 square feet and 14 feet to the ridge, and must sit at least 10 feet from side or rear lines and 50 feet from the street.
Town of Babylon Accessory Building Rules
Some RestrictionsTown of Babylon Code § 213-71A, C, G
The square footage of an accessory building shall not exceed 500 square feet. ... An accessory building located on the lot shall not exceed 14 feet in height measured from grade to ridge. ... No accessory building shall be built within 10 feet of any side or rear lot lines or nearer than 50 feet to any street line.
Looking for Suffolk County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Babylon city rules.
Accessory Structures in Suffolk County →