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 cottages.
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NorthEast Design + Build offers ADU and in-law apartment construction across Massachusetts & Rhode Island. Services include detached backyard cottages, in-law suites, and attached additions. Serving Milford, Providence, Warwick & more.
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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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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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SRH Homes builds custom ADUs, including 500 SF 1-bed and 800 SF 2-bed units. Options include high-end finishes and mini-split HVAC. Financing via HELOC or cash-out refinance. Ideal for rental units, granny flats, or in-law suites.
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Expert ADU builders serving Massachusetts homeowners. Services include detached ADUs, garage conversions, basement units & in-law suites. Fully permitted, code-compliant builds. Costs from $80K. Serving Boston, Cambridge, Worcester & statewide.
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Mass ADU is a Massachusetts-based ADU contractor offering full-service accessory dwelling unit construction. Services include free consultations, permitting, design, and build. They serve homeowners statewide with a clear 3-step process.
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Think ADU is a California ADU contractor specializing in design, permitting, and construction of accessory dwelling units. Services include detached ADUs, garage conversions, JADUs, granny flats, and in-law suites for rental, family, or property value goals.
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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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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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Walczak Design and Build LLC is a trusted ADU contractor on Massachusetts' North Shore, serving Ipswich, Newburyport, Beverly & more. They offer full-service ADU design, permitting, and construction with transparent planning and expert project management.
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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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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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Rockhouse Construction builds ADUs across Rhode Island, including Providence, Warwick, and Cranston. Options include detached, attached, garage, and basement conversions. Costs range from $60,000 to $480,000+, varying by size and finish level.
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Brittivia Homes & Construction offers expert ADU construction in Middlesex, Worcester & Essex counties, MA. With 20+ years experience, they handle permits, garage conversions & in-law suites. Costs range $150–$300/sq ft.
read moreNewton, Massachusetts, famously known as the "Garden City," is uniquely structured as a collection of 13 distinct villages, including Chestnut Hill, Newton Centre, and West Newton. This village-based layout significantly influences how ADU contractors in Newton, MA approach accessory dwelling unit projects, as neighborhood character, lot sizes, and architectural styles vary considerably across these villages. With Newton's strong housing demand driven by its proximity to Boston and top-rated public schools, accessory dwelling units in Newton have become an increasingly popular solution for homeowners looking to add value and flexibility to their properties.
Experienced ADU contractors in Newton, Massachusetts must navigate the city's specific zoning bylaws, which have evolved in response to Massachusetts state law, particularly Chapter 40A. Newton permits both attached and detached ADUs, commonly referred to as in-law apartments or accessory apartments. Key regulations that qualified Newton ADU contractors must address include:
Professional Newton ADU builders will guide homeowners through the full permitting process, which includes submitting applications to the Newton Inspectional Services Department and potentially appearing before the Newton Zoning Board of Appeals if variances are required. Given Newton's older housing stock — with many homes dating back to the early 20th century — skilled contractors must also be prepared to handle challenges such as outdated electrical systems, older plumbing infrastructure, and historic architectural details that require careful preservation.
The most common ADU types built by Newton accessory dwelling unit contractors include:
When selecting an ADU contractor in Newton, MA, homeowners should prioritize professionals with demonstrated experience in local permitting, familiarity with Newton's specific zoning bylaws, and a portfolio of completed projects within the city. Look for contractors who are licensed in Massachusetts, carry proper insurance, and have established relationships with local inspectors. A knowledgeable Newton ADU specialist can help maximize your investment while ensuring full compliance with all local and state regulations.