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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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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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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At Mass Tiny Homes, we help 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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Turnkey ADUs is a Leominster, MA ADU contractor offering modular, prefabricated accessory dwelling units across New England. Models range from $119K–$249,900. Massachusetts' 2024 Affordable Homes Act now allows ADUs up to 900 sq. ft. by right.
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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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ADUs are now legal statewide in Massachusetts. Atlantic Property Development builds custom Accessory Dwelling Units on the North Shore, offering design, permitting, and construction services for detached, attached, and garage conversion ADUs.
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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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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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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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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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Boston Construct is a full-service ADU contractor in Boston, MA, building basement conversions, garage conversions, detached backyard cottages, and in-law suites. They handle design, permitting, and construction for 1-3 family homeowners across Greater Boston.
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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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NE Tiny Homes is a full-service ADU builder across the US, offering custom tiny homes, garage conversions, and ADUs from 352 sq ft. Transparent pricing, permit handling, and move-in-ready builds for rental income or in-law suites.
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New England Outdoor, a family-owned business in Methuen, MA, builds custom sheds, garages, pavilions, and ADUs across New England. Specializing in ADU construction, garage conversions, and in-law suites, they handle design, permits, and zoning guidance.
read moreWatertown, Massachusetts is one of Greater Boston's most densely populated and historically rich communities, situated along the Charles River just west of Cambridge. With a strong housing demand and limited available land, Accessory Dwelling Units (ADUs) have become an increasingly popular solution for homeowners looking to add living space, generate rental income, or house family members. Working with experienced ADU contractors in Watertown, MA is essential to navigating the city's unique zoning landscape and tight lot configurations.
Watertown has been actively updating its zoning bylaws in alignment with Massachusetts' broader housing initiatives. Under Massachusetts General Law Chapter 40A, Section 3, municipalities are required to allow ADUs by right in single-family zoning districts. Watertown's zoning ordinances reflect this, permitting attached and detached ADUs on qualifying residential properties. Key regulatory considerations include:
A qualified ADU contractor in Watertown brings expertise in local permitting, construction, and design that is critical for a successful project. Given the city's older housing stock — much of which dates back to the early 20th century — contractors must be adept at working with existing structures, updating aging utilities, and ensuring compliance with current building codes. Services typically provided include:
With median home values in Watertown exceeding $700,000 and rental demand driven by proximity to Boston, Cambridge, and major employers like Arsenal Yards and nearby biotech hubs, ADUs offer a compelling return on investment. Whether you're building a garage conversion, basement ADU, or detached backyard cottage, the right contractor will help you maximize your property's potential while staying fully compliant with Watertown's building department requirements.
When selecting an ADU contractor in Watertown, Massachusetts, look for professionals with verified local experience, strong references, and a clear understanding of Watertown's permitting process. A well-executed ADU project can add significant value to your property and provide flexible living solutions for years to come.