Cost of accessory dwelling unit

Looking for cost of accessory dwelling unit in Rochester, NY? Call AccessoryDwellingUnit Solutions for a contact a provider — no obligation. Licensed adu builders serve Rochester and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.

About this service

The total price for an ADU depends on several moving parts, including the square footage, your foundation type, and local labor rates. Choosing high-end finishes or complex site prep will naturally increase the budget, while standard layouts help keep things manageable. Exact pricing confirmed free on the call.

Frequently asked in Rochester

What are the disadvantages of ADUs in Rochester?

Potential drawbacks of ADUs in Rochester can include the initial construction expenses and the time required for permit approvals. You'll also want to consider ongoing maintenance. However, the long-term advantages, such as increased property value and rental income, are often compelling. Let's explore your specific project.

How much does an ADU cost in New York?

What are the rules for ADUs in Rochester?

Rochester has established zoning laws and building codes that dictate ADU construction. These regulations address aspects such as minimum lot size, setbacks, and occupancy limits. A specialist can clarify how these rules apply to your specific Rochester property.

Is an ADU allowed in Rochester?

What is the process for building an ADU in Rochester?

Can I get advice on ADU options for my Rochester property?

Also serving nearby: Buffalo · Syracuse · Erie · Albany · Allentown

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More on this: HUD ADU resources — ADU policy and financing research.

Service area details

207,274residents

5,796per sq mile

8ZIP codes served

Serving all of Rochester — population 207,274; about 5,796 residents per square mile across 35.8 sq mi. ZIP codes covered include 14602, 14603, 14604, 14605, 14606, 14607, 14608, 14609.

Neighborhoods served in Rochester: South Wedge, Neighborhood of the Arts (NOTA), Corn Hill, East Avenue, Highland Park, Maplewood — and every surrounding area.