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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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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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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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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Salas Construction builds custom ADUs in Rhode Island, including attached, detached, and garage conversions. Projects range from $200K–$500K and take 6–12 months. Uses include rentals, guest suites, and multigenerational living.
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Regulus Construction is a licensed ADU contractor serving MetroWest Massachusetts. They build detached backyard cottages, garage conversions, and in-law suites, managing design, permitting, and construction across 40+ towns.
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An Accessory Dwelling Unit (ADU) is a self-contained living space on a residential property. Massachusetts law now makes ADU construction easier. Aureli Construction offers full-service ADU building, from zoning research to completed construction.
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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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Steveworks LLC completed a whole house remodel in Newton, redesigning the floor plan, replacing windows, siding, and roofing, and upgrading insulation. They also built an accessible ADU above a garage, featuring a full kitchen, curbless shower, and chair lift for aging-in-place living.
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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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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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13 Gables Inc, a licensed MA general contractor with 38+ years experience, builds custom ADUs including detached units, garage conversions & in-law suites. Massachusetts' 2025 Affordable Homes Act now allows ADUs by right in single-family zones.
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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.
read moreShrewsbury, Massachusetts is one of the fastest-growing towns in Worcester County, known for its highly rated public schools, proximity to Route 9 and I-290, and its blend of suburban neighborhoods and natural spaces like Lake Quinsigamond. This growth has made ADU (Accessory Dwelling Unit) construction in Shrewsbury, MA increasingly popular among homeowners looking to add rental income, house extended family members, or increase their property value. Working with experienced ADU contractors in Shrewsbury is essential to navigating the town's specific zoning bylaws and building requirements.
Shrewsbury operates under its own local zoning bylaws, which ADU contractors must carefully follow. Massachusetts state law, particularly Chapter 40A, Section 3, requires municipalities to allow ADUs by right in single-family zoning districts, a rule that has significantly impacted how towns like Shrewsbury handle ADU applications. Key regulations that your Shrewsbury ADU contractor will need to address include:
Experienced ADU builders in Shrewsbury, MA typically work on several types of accessory dwelling units suited to the town's existing housing stock, which includes many colonial, cape, and ranch-style homes. Common ADU types include:
Hiring a local ADU contractor familiar with Shrewsbury, Massachusetts offers significant advantages. A contractor with experience in the area will already understand the town's permitting process, have established relationships with local inspectors, and be knowledgeable about utility connection requirements specific to Shrewsbury's infrastructure. This local expertise can save homeowners both time and money throughout the construction process.
Whether you're looking to create a rental unit near UMass Memorial Medical Center or house aging parents close to Shrewsbury's excellent amenities, an ADU is a smart investment. Contact a qualified ADU contractor in Shrewsbury, MA today to discuss your project, review local zoning requirements, and get a detailed estimate for your accessory dwelling unit.