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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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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Planning an ADU in Massachusetts? Costs range from $250–$500+ per sq ft. State law now allows ADUs by right on single-family lots. Learn about permits, the Stretch Energy Code, and working with a qualified ADU contractor in Greater Boston.
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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 dwelling units.
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Auburndale Builders completed an 800 sq ft ADU in Newton, MA—a single-level, universally accessible in-law suite with full kitchen, bathroom, bedroom & living area, built in compliance with local zoning regulations.
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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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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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MassDwell Solutions builds modular ADUs for homeowners, investors & developers. Models range from 470–892 sqft, starting at $164,500. Factory-built steel frame units include full warranties, energy-efficient features & 8–12 week installation.
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Yeoman Design Build specializes in sustainable Accessory Dwelling Units (ADUs) in Massachusetts. From detached ADUs to granny flats and in-law suites, they offer holistic design, careful materials selection, and full project management for property owners.
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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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River City Construction is a Boston-based ADU contractor specializing in home additions, garage conversions, in-law suites & detached backyard cottages. They manage design, permitting & full construction under one roof.
read moreWorcester, 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.
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:
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:
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.
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.