Cost of accessory dwelling unit — Buffalo, NY
Last updated: September 24, 2026
What affects the price
Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.
About this service
Building an ADU involves several variables that shift your final total, such as the size of the unit, whether you choose a detached structure or a garage conversion, and the complexity of your site’s plumbing and electrical needs. We help you navigate these choices to keep your project on track. Exact pricing confirmed free on the call.
Frequently asked in Buffalo
What is an ADU unit?
Are ADU rules different in Massachusetts?
Yes, ADU regulations are unique to each state and even each municipality. Massachusetts has its own specific laws governing accessory dwelling units, which differ from New York's. If you're looking for ADU services in Massachusetts, you'll need to consult professionals familiar with those particular rules and requirements. Our service focuses on Buffalo.
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Also serving nearby: Rochester · Erie · Syracuse · Cleveland · Pittsburgh
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Buffalo — population 274,678; about 6,802 residents per square mile across 40.4 sq mi. ZIP codes covered include 14201, 14202, 14203, 14204, 14205, 14206, 14207, 14208.
Neighborhoods served in Buffalo: Downtown Buffalo, Allentown, Delaware District, Elmwood Village, Hertel Avenue — and every surrounding area.
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