Hawthorn Builders offers end-to-end ADU construction, managing consultation, design, permitting, and building. As a detached ADU and garage conversion contractor, they complete accessory dwelling units in ~90 days with minimal disruption.
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Planning an ADU in Massachusetts? Costs range from $250–$500+ per sq ft. State law now allows ADUs by right on single-family lots. Learn about permits, the Stretch Energy Code, and working with a qualified ADU contractor in Greater Boston.
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The Backyard Homes line of ADUs are manufactured in over a dozen production facilities and available in 48 states. After being constructed in one of our modern plants the unit is delivered to the project site for the builder to install.
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Home & Hearth Remodeling offers ADU construction in Massachusetts. Since the 2024 Affordable Homes Act, homeowners can add one ADU by right in single-family zones. Services include detached ADUs, in-law suites, and garage conversions.
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Amex Construction is a Hanover-based design-build ADU contractor serving Massachusetts' South Shore. They manage detached ADUs, barn conversions, and basement suites, handling design, permitting, septic upgrades, and construction under one contract.
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ADU Building Systems LLC builds factory & site-built ADUs in Massachusetts, including detached, attached & converted units. Offering 10-year structural warranties, cost savings up to 50%, and full-service design to turnkey construction.
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Mass Tiny Homes helps you build the perfect ADU for your needs, whether it be for aging parents or rental income, with an easy, streamlined process from start to finish.
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Spring Home Improvement offers expert ADU contractor services in Norfolk, MA. Family-owned since 2012, they handle design, permits, and construction with 10+ years of experience, transparent pricing, and a one-year labor warranty.
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Platt Builders is a home remodeling company offering kitchen, bathroom, and whole-home renovations. They focus on custom design, quality craftsmanship, and clear communication, managing every project from planning to completion.
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Luxe & Co. Accessory Dwellings is a Massachusetts ADU builder offering full-service design, construction, and permitting. Founded by Hope Beckman and Sage Conti, they specialize in high-end ADUs including in-law suites, carriage houses, and home offices.
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ADUs are self-contained living spaces on existing properties. Legal in Massachusetts, local zoning rules apply. Boston Building Concepts is a Massachusetts ADU contractor offering full-service design, permitting, and construction of garage conversions, in-law suites, and detached ADUs.
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Beantown Builders, Inc. is a Greater Boston ADU contractor offering full-service design, permitting, and construction. Projects include detached ADUs, garage conversions, and in-law suites, with budgets from $15,000 to $1M+.
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Acorn Deck House builds luxury prefab ADUs in MA, featuring exposed beams & large windows. Options include 900 sq ft & 730 sq ft models. ADUs boost property value by 25–34% & generate rental income.
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JFC Pros Construction is a licensed general contractor in Massachusetts offering design, commercial, and new construction services. Their team includes architects, engineers, and tradespeople ensuring full code compliance with NFPA, ADA, IBC, IRC, and local building codes.
read moreBlackstone, Massachusetts is a small town in Worcester County with a rich industrial heritage rooted in its historic textile mills and the Blackstone Canal. With a population of around 9,000 residents, the town features a mix of older New England-style homes and more modern residential properties. This unique housing stock presents both opportunities and challenges for ADU contractors in Blackstone, MA. Whether you're looking to convert an existing structure or build a new accessory dwelling unit, working with experienced local contractors is essential to navigating the town's specific requirements.
Before beginning any ADU project in Blackstone, it's critical to understand the local zoning bylaws. Blackstone falls under the jurisdiction of its own Zoning Board of Appeals and Planning Board. Massachusetts state law, particularly Chapter 40A, provides a framework for ADUs, and many municipalities including Blackstone have been updating their bylaws in response to the state's push for increased housing production. Key considerations for ADU construction in Blackstone include:
Given the character of Blackstone's housing stock, ADU contractors in the area frequently work on the following types of projects:
Hiring a licensed and experienced ADU contractor familiar with Blackstone, Massachusetts is one of the most important decisions you'll make. Local contractors understand the town's permitting process, have established relationships with the Blackstone Building Department, and are familiar with the soil conditions and infrastructure challenges common in this part of Worcester County. They can also help you navigate Massachusetts building codes, energy efficiency requirements under the Massachusetts Stretch Energy Code, and any historic preservation considerations that may apply to older properties near the town center.
Adding an ADU to your Blackstone property can increase its value, provide rental income, or create space for multigenerational living. Work with a qualified ADU contractor in Blackstone, MA who understands local regulations and can guide your project from permitting through final inspection efficiently and professionally.