Accessory Structures in White Plains, NY (2026)
5 verified accessory structures rules for White Plains, New York, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
White Plains restricts accessory apartments. Two-family dwellings are permitted only in R-2 and higher-density districts; single-family R-1 zones generally do not permit ADUs without variance.
accessory-structures/adu-rules
Heavy RestrictionsShed Rules
Sheds over 144 sq ft require a building permit. Sheds must meet accessory structure setbacks (typically 5-10 feet from side/rear lot lines) and rear/side yard placement rules.
accessory-structures/shed-rules
Some RestrictionsGarage Conversions
Converting a garage to living space requires a building permit, full code compliance (egress, insulation, heating, smoke/CO alarms), and zoning approval if it changes the number of dwelling units.
accessory-structures/garage-conversions
Heavy RestrictionsCarport Rules
Carports are accessory structures requiring a building permit and compliance with zoning setbacks. Typically may not encroach into required front yards.
accessory-structures/carport-rules
Some RestrictionsTiny Homes
Tiny homes on foundations must meet NYS Residential Code (min 70 sq ft habitable room, 7-ft ceiling). Tiny homes on wheels are treated as RVs and not permitted as permanent dwellings.
accessory-structures/tiny-homes
Heavy RestrictionsLooking for Westchester County county-wide rules?
County ordinances apply to unincorporated areas and may supplement White Plains city rules.
Accessory Structures in Westchester County →