John Crowley Construction Co offers turnkey ADU construction on Massachusetts' South Shore, serving Pembroke, Plymouth, Hingham & more. Licensed (#114197), insured, 25+ years experience. Detached, attached, garage & basement ADUs available... read more
Trusted Boston ADU builders specializing in attached, detached, and two-story accessory dwelling units. Stick-built construction ensures code compliance and lasting value. Services include design, permitting, and full project management for multig... read more
BuildX is a premier ADU builder in Southeastern Massachusetts with 40+ years of experience and $450M+ in projects. Offering custom stick-built ADUs, a 100-day build guarantee, and transparent pricing starting from $254,540.
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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.read more
Massachusetts homeowners can get permit-ready ADU plans starting at $800, delivered in days. Three tiers cover plans, cost estimates, and full custom design up to $3,100. Free ADU Starter Guide available.
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Keane Construction & Remodeling, LLC offers expert ADU construction in Westport, MA, with 32 years of experience. Services include site evaluation, custom design, permitting, and full build of detached or attached accessory dwelling units acro... read more
Massachusetts' new ADU legislation allows homeowners to build detached or attached accessory dwelling units. CZ Construction Management LLC helps with planning, permits, and construction of ADUs across Massachusetts, including Greater Boston.
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Studio Luz Architects designed a 1,180 sq ft attached ADU featuring solar power, wind energy, energy recovery systems, and water collection. The sustainable addition boosted property value while serving as a functional secondary living space.
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Walsh Builders offers custom ADU construction in Blackstone, Milford, Wellesley, and nearby Massachusetts areas. Services include design, permitting, construction, and finishing for in-law suites, backyard cottages, and detached accessory dwelling... read more
DiStefano Brothers Construction builds ADUs in Rhode Island, including internal, attached, and detached units. They navigate RI regulations: by-right approval, size limits, occupancy rules, and long-term rental requirements for compliant accessory... read more
J. B. Cote Construction is an ADU contractor in Rhode Island & Massachusetts, specializing in detached ADUs, garage conversions, in-law suites & more. They manage design, permitting, zoning & energy-efficient construction from start to... read more
Ron Morgan Construction is a Massachusetts ADU contractor offering full-service accessory dwelling units from 300–900 sq ft. Licensed under the 2024 Affordable Homes Act, they handle design, permits & construction. ADUs start at $90,000.
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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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ADU Of Massachusetts is a full-service ADU builder specializing in design, permitting, and construction of accessory dwelling units. Serving homeowners statewide, they build attached, detached, garage conversions, in-law suites, and backyard cotta... read more
Victory Construction Services Inc. builds ADUs in Rhode Island, including garage conversions, basement ADUs, and detached units. Family-owned since 2016, licensed, insured, with 15+ years experience and a 1-Year Workmanship Guarantee. Free estimat... read more
Mattapoisett is a charming coastal town in Plymouth County, Massachusetts, known for its scenic harbor, historic shipbuilding heritage, and tight-knit community of approximately 6,000 residents. Building an Accessory Dwelling Unit (ADU) in Mattapoisett requires working with experienced ADU contractors who understand the town's unique zoning bylaws, coastal regulations, and the character-sensitive nature of this picturesque New England community. Whether you're looking to add a guest cottage, an in-law suite, or a rental unit, finding the right ADU contractor in Mattapoisett, MA is the critical first step.
Mattapoisett's zoning bylaws govern where and how ADUs can be constructed. Homeowners and contractors must navigate the town's Zoning Board of Appeals and comply with local bylaws that address lot size requirements, setbacks, and overall building footprint. Because portions of Mattapoisett fall within coastal flood zones and are subject to Massachusetts Coastal Zone Management (CZM) regulations, ADU projects near the waterfront may require additional permitting through the Conservation Commission. Key regulatory factors include:
A skilled ADU contractor serving Mattapoisett will handle the full scope of your project, from initial design consultation to final inspection. Given the town's relatively small size, local contractors with established relationships with Mattapoisett's Building Department can help streamline the permitting process significantly. Experienced contractors will assist with:
Given the town's mix of historic homes, waterfront properties, and suburban neighborhoods, the most common ADU types in Mattapoisett include detached backyard cottages, attached in-law suites, and garage conversions. Many homeowners are also exploring ADUs as a way to generate rental income or accommodate multigenerational living, both of which are growing trends across southeastern Massachusetts.
Investing in an ADU in Mattapoisett is a smart way to increase your property value and maximize your land use in one of Massachusetts' most desirable coastal communities. Work with a licensed and insured ADU contractor who has proven experience navigating local regulations and delivering high-quality results that complement Mattapoisett's distinctive character.