Alcantara Construction is an experienced ADU contractor specializing in detached ADUs, garage conversions, JADUs, in-law suites, and granny flats. They guide homeowners through planning, permitting, and building accessory dwelling units efficiently.
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Bradford Construction Management brings commercial-grade project management to every ADU we build across the North Shore. That means daily photo documentation so you always know what's happening on site, transparent pricing so there are no budget surprises, and a clear schedule with real milestones.
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Top-Pro Construction, Inc. is Greater Boston's trusted ADU builder with 25 years of experience. Specializing in detached ADUs, attached units, garage conversions & basement ADUs to boost property value and rental income.
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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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Core Remodeling Services has built ADUs and in-law suites across Central Massachusetts since 2012. They handle zoning, permits, design, and construction. Projects range from $150K–$400K+, take 6–8 months, and are backed by a 5-year warranty.
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Patco Homes offers full-service ADU construction, managing feasibility, design, permits, and build. Ideal for granny flats, in-law suites, or detached ADUs, they guide homeowners through every step with one dedicated team.
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Massachusetts ADUs are now legal by right statewide after 2024 legislation. MBA Builders offers full-service ADU construction across Greater Boston, with structured preconstruction planning and builds starting around $450/sq ft.
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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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DCCS Construction helps Boston homeowners navigate the ADU program, converting basements, attics, and existing spaces into independent rental units. Serving 1-3 family homes, they handle both architectural design and construction for full ADU project management.
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Stella Home Services is a Greater Boston ADU contractor specializing in basement apartments, garage conversions, in-law suites & home additions. They manage design, permitting & construction for fully functional accessory dwelling units.
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All City Remodeling Co. offers ADU construction, period molding installation, and beam ceiling paneling in Boston, MA, and North Shore communities including Hamilton, Salem, and Manchester-by-the-Sea.
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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 multigenerational living or rental income.
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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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Salisbury Construction Worcester builds ADUs across Worcester County, Central Mass & MetroWest. Services include detached units, garage conversions, basement conversions & home additions using a streamlined design-build process.
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FiveTen Construction & Design is a Massachusetts ADU contractor offering design, permitting, and construction services. They build detached, attached, basement, and garage ADUs, ensuring full compliance with MA building codes and zoning regulations.
read moreSalem, New Hampshire is one of the state's most dynamic communities, situated directly on the Massachusetts border along Route 28 and Interstate 93. Known for its strong retail economy anchored by the Rockingham Park area and a rapidly growing residential population, Salem has seen increasing demand for Accessory Dwelling Units (ADUs). Homeowners in Salem are turning to experienced ADU contractors to maximize their property value and address the region's tight housing market, particularly given the town's appeal to commuters heading into the Greater Boston area.
Before breaking ground, it's essential to understand Salem's local zoning ordinances. Salem operates under its own Zoning Ordinance, and ADUs are generally permitted as accessory uses in residential zones, but subject to specific conditions. Key regulatory points that qualified ADU contractors must navigate include:
New Hampshire state law, particularly RSA 674:71-73, provides a framework encouraging municipalities to allow ADUs, and Salem has aligned its local ordinances accordingly. However, working with a knowledgeable local ADU contractor ensures full compliance with both state and town-specific requirements.
Experienced ADU contractors in Salem, NH offer a variety of construction options tailored to the town's mix of colonial-style homes, ranch properties, and newer developments. Common ADU types include:
Hiring a local ADU contractor in Salem, New Hampshire offers significant advantages. Local professionals are familiar with the town's permitting timelines, building inspectors, and specific soil and frost-depth considerations common to Southern New Hampshire's climate. They also understand the architectural character of Salem neighborhoods, ensuring your ADU blends seamlessly with the existing structure.
With Salem's proximity to Massachusetts and its strong rental demand, a well-built ADU can generate substantial rental income or provide flexible multigenerational living space. ADU contractors in Salem, NH can help homeowners assess feasibility, manage permitting, and deliver high-quality construction that meets all local codes — making your ADU project a smart, long-term investment in one of New Hampshire's most sought-after communities.