Adu quote — Cambridge, MA
Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
About this service
An ADU quote is a detailed breakdown of the costs to build your specific project after we have reviewed your site and design choices. Factors like soil conditions, utility connections, and your choice of finishes will influence the final number. We provide a clear, line-item document so you know exactly where your money is going. Exact pricing confirmed free on the call.
Frequently asked in Cambridge
What are the accessory dwelling unit services in Cambridge?
Who are the accessory dwelling unit contractors in Cambridge?
What are the accessory dwelling unit companies in Cambridge?
What is the accessory dwelling unit permit cost in Cambridge?
Where can I find ADU near me in Cambridge?
What are some homes with in-law suites in Cambridge?
Homes with in-law suites in Cambridge often feature attached or detached secondary dwelling units designed for extended family or rental income. These suites provide independent living spaces with their own amenities. Given Cambridge's housing market, these are increasingly sought after. The pros can help you design or construct an in-law suite that seamlessly integrates with your existing home and meets all local building codes.
What are accessory dwelling units ADUs?
Accessory dwelling units (ADUs) are secondary housing units on a single-family residential lot, offering independent living quarters with their own kitchen, bathroom, and sleeping area. They can be attached to the main house or be a separate structure, like a backyard cottage. ADUs provide flexible housing options and are subject to local zoning and building regulations. The pros are experts in understanding and implementing these units.
Also serving nearby: Newton · Boston · Quincy · Lynn · Brockton
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Cambridge — population 118,214; about 18,479 residents per square mile across 6.4 sq mi. ZIP codes covered include 02138, 02139, 02140, 02141, 02142, 02238.
Neighborhoods served in Cambridge: Inman Square, Central Square, Porter Square, Harvard Square, Kendall Square — and every surrounding area.
Areas we serve
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California (4)
All of California · Fairfield · Murrieta · Richmond · Vallejo