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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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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ADU Builders CT LLC, based in Westport, CT, specializes in custom ADU design and construction, tiny homes, and home remodeling. Licensed in Connecticut (#NHC.0018259) with 35+ years of experience, they offer detached, attached, basement, attic, garage, and pool house ADUs statewide.
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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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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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The Barn Yard designs and builds accessory dwelling units (ADUs) using post and beam construction. They offer full builds across New England and New York, plus nationwide ADU kit shipping for rental units, guest suites, or multigenerational living.
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Two Stories Woodworking LLC, Suffolk NY's trusted ADU builder & remodeling contractor. Specializing in kitchen, bathroom, basement remodels, home additions & accessory dwelling units. 350+ homes transformed with expert craftsmanship & stress-free service.
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Post and Beam Barns (Country Carpenters, Hebron CT) offers handcrafted post and beam kits ideal for ADUs, backyard cottages & in-law suites. With 50+ years experience, models include The Sterling, Hemingway & Barrett. Timeline: 4–12 months.
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With years of experience in ADU design and construction, we deliver high-quality results tailored to Connecticut homeowners. We understand Hartford and Connecticut’s ADU regulations, making your project smooth and hassle-free from permits to completion.
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Kling Brothers Builders specializes in home additions, from extra bedrooms to master retreats. They handle planning, site evaluation, exterior matching, and construction, ensuring seamless integration and strong ROI. Free consultations available.
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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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Keane Construction & Remodeling, LLC offers expert ADU construction in Westport, MA, with 32 years of experience. Services include site evaluation, custom design, permitting, and full build of detached or attached accessory dwelling units across Bristol County.
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Victory Construction Services Inc. builds ADUs in Rhode Island, including garage conversions, basement ADUs, and detached units. Family-owned since 2016, licensed, insured, with 15+ years experience and a 1-Year Workmanship Guarantee. Free estimates available.
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New London’s unique blend of historic charm and modern living makes it an ideal location for thoughtfully designed ADUs. The city’s zoning regulations have adapted to accommodate these versatile structures, making now the perfect time to consider adding one to your property.
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Sunwood Home Builders & Remodelers, building since 1985, offers ADU construction across Connecticut. Services include detached ADUs, in-law suites, garage conversions & more. Over 600 homes built. Projects typically take 6–12 months.
read moreMystic, Connecticut, is a charming coastal village within the town of Stonington, renowned for its maritime heritage, the famous Mystic Seaport Museum, and its picturesque New England architecture. Building an Accessory Dwelling Unit (ADU) in Mystic requires working with experienced ADU contractors who understand the unique challenges of this historic area, including navigating local zoning regulations, preserving neighborhood character, and addressing the coastal environment's specific construction demands.
Since Mystic falls under the jurisdiction of both Stonington and Groton depending on the specific location, ADU contractors must be well-versed in each municipality's zoning codes. Connecticut's Public Act 21-29, signed into law in 2021, requires municipalities to allow ADUs in single-family residential zones, which has opened new opportunities for Mystic homeowners. However, local regulations still govern key aspects such as:
Mystic's location along the Mystic River and its proximity to Long Island Sound mean that many properties fall within FEMA flood zones or Connecticut's coastal boundary. Skilled ADU contractors in Mystic must comply with the Connecticut Coastal Management Act and may need to obtain additional permits from the Connecticut Department of Energy and Environmental Protection (DEEP). Construction materials and foundation designs must account for flood risk, moisture, and salt air exposure, making the selection of a knowledgeable local contractor essential.
Given the older housing stock and lot sizes typical of Mystic, the most common ADU types built by local contractors include:
When selecting an ADU contractor in Mystic, Connecticut, homeowners should prioritize professionals with demonstrated experience in local permitting processes, coastal construction standards, and historic preservation guidelines. A qualified contractor will manage everything from design and permitting to construction and final inspection, ensuring your ADU adds lasting value to your Mystic property. Whether you're creating a rental unit, a guest suite, or multigenerational housing, the right contractor makes all the difference in this unique New England community.