ADU Contractors near Worcester, MA
Honorato Company
34 Commerce Way, Woburn, MA 01801
38.2 miles
Honorato Company offers a structured construction process in Boston, covering ADUs, garage conversions & renovations. From consultation to final walkthrough, they ensure transparency, permitting, design, and clear communication throughout.
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House Improvement LLC
6 Garfield Avenue, Shrewsbury, MA 01545
6.3 miles
House Improvement LLC builds fully insulated ADUs with electricity and climate control, ideal for home offices or studios. They also construct storage sheds, carports, gazebos, and pergolas for diverse residential outdoor needs.
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Regulus Construction
36 West Street, Milford, MA 01757
16.1 miles
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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ADU-PRO Corp.
121 Orchard Street, Millis, MA 02054
23.4 miles
ADU-PRO Corp is a Massachusetts ADU specialist offering full-service construction, permitting, and project management. Led by licensed experts, they help homeowners build granny flats, in-law suites, and backyard cottages up to 900 sq ft.
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Meetinghouse Builders
191 Depot Road, Hollis, NH 03049
33.6 miles
Meetinghouse Builders offers custom ADU design & construction in Hollis, NH. Services include detached builds, garage conversions, basement ADUs & home additions. Features 3D renderings, style guides & full construction documents.
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Studio Luz Architects
4238 Washington Street, Boston, MA 02131
34.7 miles
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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JB Cote Construction
25 Grand Avenue, Cumberland, RI 02864
31 miles
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 finish.
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Amex Construction
15 Industrial Way, Hanover, MA 02339
49.1 miles
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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Salisbury Construction Worcester
453 Chandler Street, Worcester, MA 01602
1.5 miles
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
462 Washington Street, Woburn, MA 01801
38.4 miles
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.
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Top Pro Inc.
35 Bradshaw Street, Medford, MA 02155
37.7 miles
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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Brittivia Homes & Construction
913 Northfield Road, Lunenburg, MA 01462
23.5 miles
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.
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Rare Forms
51 Ferry Street, Easthampton, MA 01027
43.2 miles
Rare Forms & New Frameworks offer the Casita series—prefabricated ADUs built with sustainable Massachusetts wood and straw. All-electric, non-toxic, and customizable, models include the Cabinita 300 and Terra 600 for eco-friendly backyard cottages.
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13 Gables Inc
64 Millbury Road, Worcester, MA 01540
9.1 miles
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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Mass ADU
144 Arlington Road, Woburn, MA 01801
37.2 miles
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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Other cities in Massachusetts
What you need to know
Worcester, Massachusetts: A Growing City Embracing ADU Development
Worcester, the second-largest city in New England, has been experiencing significant urban revitalization in recent years. As housing demand continues to rise in this vibrant college city — home to institutions like Clark University, WPI, and Holy Cross — ADU contractors in Worcester, MA are playing a crucial role in helping homeowners expand their housing options. Accessory Dwelling Units (ADUs) offer an excellent solution to Worcester's ongoing housing challenges, providing affordable rental income opportunities while addressing the city's growing population needs.
Worcester Zoning Regulations and ADU Requirements
Before beginning any ADU project in Worcester, it's essential to understand the local zoning ordinances. Worcester operates under its own Zoning Ordinance, and ADU construction must comply with the city's specific requirements. Key regulations that experienced ADU contractors in Worcester must navigate include:
- ADUs must be located on lots that already contain a single-family or two-family dwelling
- The ADU floor area is typically limited to no more than 900 square feet or 30% of the primary dwelling's floor area
- Owner-occupancy of either the primary unit or the ADU is generally required
- Adequate off-street parking must be maintained on the property
- All ADU projects require building permits from the Worcester Inspectional Services Division
- Compliance with Massachusetts State Building Code (780 CMR) is mandatory
Types of ADUs Built by Worcester Contractors
Skilled ADU builders in Worcester, MA are experienced in constructing various types of accessory dwelling units suited to the city's diverse housing stock, which includes many older Victorian-era and triple-decker style homes. Common ADU types include:
- Basement conversions – transforming existing basement space into a livable unit
- Garage conversions – repurposing detached or attached garages into dwelling units
- Attached additions – building a new unit connected to the existing home
- Detached backyard cottages – constructing a fully separate structure on the property
- Interior conversions – dividing existing living space within the home
Why Hire a Local Worcester ADU Contractor?
Hiring a licensed ADU contractor in Worcester, Massachusetts who understands the local permitting process is critical to a successful project. Local contractors are familiar with the Worcester Inspectional Services Division, the city's specific zoning maps, and the nuances of working with older New England housing stock. They can efficiently handle permit applications, inspections, and ensure compliance with both local and state regulations, saving homeowners significant time and money.
Investing in an ADU in Worcester
With Worcester's strong rental market driven by its large student and young professional population, building an ADU is a smart financial investment. ADU construction costs in Worcester vary depending on the project type, but homeowners can typically expect strong returns through rental income. Connect with a reputable Worcester ADU contractor today to explore how an accessory dwelling unit can maximize your property's value and contribute to the city's housing solutions.