ADU rules in Yonkers, NY — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Yonkers permits accessory dwelling units in specified residential districts subject to owner-occupancy, off-street parking, and setback requirements under Zoning Ordinance Chapter 43. NY has no statewide ADU preemption.
Yonkers Zoning Ordinance Chapter 43 regulates accessory apartments (ADUs) in single-family zones. Typical requirements include owner-occupancy of the primary or accessory unit, minimum lot area (often larger than standard for the district), one additional off-street parking space, and compliance with setback and height rules for accessory structures. The ADU must have its own kitchen and bathroom but share an entrance or utilities depending on district. Building permits and certificate of occupancy required. NY has no statewide ADU preemption so local rules fully apply. 'Plus One ADU' state grants may fund qualifying low/moderate-income ADU construction.
Illegal ADU conversions: zoning violations $250-$1,000 plus required restoration. Code compliance costs recoverable from owner.
Yonkers, NY
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Yonkers, NY
Overnight on-street parking is generally allowed on residential streets but subject to alternate-side street-cleaning rules. Some zones require residential p...
Yonkers, NY
Retaining walls over 4 ft tall (from bottom of footing to top) require a building permit and engineered drawings in Yonkers. Walls with surcharge loads requi...
Yonkers, NY
Chickens and livestock generally prohibited in Yonkers residential zones. Zoning code allows only conventional household pets in single-family and multi-fami...
Yonkers, NY
Yonkers enforces New York State smoke and carbon monoxide alarm requirements under 19 NYCRR Part 1225 (Uniform Fire Prevention and Building Code). All dwelli...
Yonkers, NY
Yonkers is not in a designated wildfire zone. New York does not maintain WUI (wildland-urban interface) fire hazard maps, and Yonkers is a dense urban city i...
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