Yonkers does not impose a dedicated impact fee on accessory apartments. Applicants pay the standard Chapter 43 special use permit application fee plus building permit fees set by the Department of Housing and Buildings fee schedule. The published fee for accessory residential uses or structures for single- and two-family uses is $175 at the special use stage, with building, plumbing, electrical, and certificate of occupancy fees additional.
Yonkers has not adopted a statutory impact fee program targeting accessory dwelling units. The cost stack for an accessory apartment application typically includes: a Chapter 43 special use permit fee (published in the Yonkers fee schedule at $175 for accessory residential uses for single- and two-family lots), Department of Housing and Buildings building, plumbing, electrical and mechanical permit fees scaled to declared construction valuation, a certificate of occupancy fee, and Planning Board review costs. Westchester County does not levy a separate ADU impact fee on Yonkers projects, although county sewer connection charges apply when new sanitary service is installed. Water service in Yonkers is administered through the City's Department of Public Works (Water Bureau), which may charge tap or meter fees only when new service is required. The New York State Energy Code (also codified in 19 NYCRR) is enforced through plan review without a dedicated fee. Because there is no separate ADU impact fee schedule, total fees vary primarily by construction valuation rather than by ADU classification.
Failure to pay required special use, building, or trade permit fees prevents permit issuance, blocks the certificate of occupancy, and exposes the owner to enforcement under Article XII of Chapter 43. Unpaid water or sewer connection charges can result in service refusal by DPW or by the county sewer district.
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See how Yonkers's adu impact fees rules stack up against other locations.
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