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
This service refers to rapid-response consulting where a team reviews your site feasibility, zoning potential, and design goals within a single day. You need this if you are in the early research phase and want immediate clarity on whether your property qualifies for an ADU. It cuts through the uncertainty of property development by giving you actionable information about setbacks and utility access right away, allowing you to move forward with confidence instead of waiting weeks for an initial assessment.
Frequently asked in Boston
What are homes with mother-in-law suites like in Boston?
What are the best backyard accessory dwelling units for Boston?
Is accessory dwelling unit a common term in Massachusetts?
What does accessory dwelling unit mean in Boston?
Who is a good ADU builder in the Boston area?
What ADU services are available near me in Boston?
What is the cost to build an accessory dwelling unit in Boston?
Also serving nearby: Quincy · Cambridge · Lynn · Newton · Brockton
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Boston — population 653,833; about 13,525 residents per square mile across 48.3 sq mi. ZIP codes covered include 02108, 02109, 02110, 02111, 02112, 02113, 02114, 02115.
Neighborhoods served in Boston: Beacon Hill, Back Bay, South End, North End, Dorchester, Jamaica Plain — and every surrounding area.
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