Syracuse permits accessory dwelling units (ADUs) by right in residential zones R1, R2, R3, and R4 under ReZone Syracuse (the City of Syracuse Zoning Ordinance, effective July 1, 2023, amended July 2024). One ADU is allowed per single-family property; a building permit, zoning compliance review, and conformance with the NY State Uniform Code (19 NYCRR Parts 1219-1228) are required.
The City of Syracuse adopted ReZone Syracuse on July 1, 2023 - its first comprehensive rezoning since 1967 - and amended it in July 2024. The ordinance explicitly authorizes accessory dwelling units (ADUs) as a permitted accessory use in residential districts (R1 Single-Unit, R2 Two-Unit, R3 Small Multi-Unit, and R4 Multi-Unit), making Syracuse a by-right ADU city in the state. One ADU is allowed per lot containing a single-family principal dwelling; both attached (interior conversion or addition) and detached ADUs are permitted. Detached ADUs must be located in the side or rear yard of the principal dwelling and are limited to one bedroom. Applicants must submit plans to the Department of Zoning Administration for a zoning compliance review, then secure a building permit from the Division of Code Enforcement. Construction must comply with the New York State Uniform Fire Prevention and Building Code at 19 NYCRR Parts 1219-1228, which adopts the IBC, IRC, and IFC with NY State amendments. Plans typically require site plan, floor plan, structural details, and certification by a licensed NY design professional for units over a threshold size. Permit review typically takes 6-10 weeks.
Building an ADU without zoning compliance or a building permit triggers a stop-work order and notice of violation from the Division of Code Enforcement. Penalties under Chapter 27 (Property Conservation Code) and the Zoning Ordinance can include daily fines, mandatory removal or legalization, and an order to vacate. Unpermitted occupancy may additionally draw a NY State Uniform Code citation.
Syracuse, NY
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Syracuse, NY
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Syracuse, NY
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