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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BlackDog Builders offers full-service ADU design/build solutions, handling design, permitting, and construction under one roof. Specializing in detached ADUs, backyard cottages, in-law suites, and granny flats, they back projects with a 3-year warranty.
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T&J Builders specializes in custom ADUs in Dover NH, Portsmouth NH, NH Seacoast, Lakes Region & Southern Maine. Services include garage conversions, in-law suites & detached cottages for rental income, multigenerational living & added property value.
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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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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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Post Woodworking builds custom Accessory Dwelling Units (ADUs), including detached ADUs and in-law suites. They offer flexible involvement, from full construction management to building only, ensuring seamless integration with your existing home.
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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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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.
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Bradford Construction Management brings commercial-grade project management to every ADU we build across the North Shore. That means daily photo documentation so you always know what's happening on site, transparent pricing so there are no budget surprises, and a clear schedule with real milestones.
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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.
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Kinstruct Tiny Homes is a Pacific Northwest contractor specializing in tiny homes and ADUs, including detached ADUs, backyard cottages, granny flats, and in-law suites built to maximize space and meet local codes.
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Pro's Edge Small Homes is a licensed ADU contractor in MA & NH with 20+ years experience. They offer turnkey design, permitting & modular construction of granny flats, in-law suites & backyard cottages, including a free property evaluation.
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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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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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New England Additions, backed by Sordan Construction, offers pre-designed ADU builds across 25+ Greater Boston communities. Specializing in in-law suites and detached ADUs, they streamline permitting, budgets, and timelines for Massachusetts homeowners.
read morePembroke, New Hampshire is a small, tight-knit community situated along the Merrimack River in Merrimack County, with a population of just over 7,000 residents. Known for its rural charm, historic character, and proximity to Concord — the state capital — Pembroke offers a unique setting for homeowners looking to expand their living space through an Accessory Dwelling Unit (ADU). Working with experienced ADU contractors in Pembroke, NH is essential to navigate local zoning ordinances, state building codes, and the town's specific land use regulations.
Before breaking ground, homeowners and contractors must be well-versed in Pembroke's zoning ordinances. New Hampshire passed RSA 674:71-73, a state law that requires municipalities to allow ADUs as a matter of right on single-family lots. This means Pembroke must permit at least one ADU per single-family dwelling. However, local regulations may still govern important aspects of ADU construction, including:
Qualified ADU contractors in Pembroke will work closely with the town's Planning and Zoning Department to ensure all permits are obtained and that construction complies with both local ordinances and New Hampshire state building codes.
Given Pembroke's largely rural and suburban landscape, several types of ADUs are popular among homeowners in the area. Skilled local contractors can help you determine which option best suits your property and budget:
Hiring a local ADU contractor familiar with Pembroke, NH provides significant advantages. Local professionals understand the town's permitting process, have established relationships with municipal offices, and are knowledgeable about the region's climate considerations — including frost depth requirements and energy efficiency standards critical for New Hampshire winters. They can also help homeowners take advantage of any available New Hampshire Housing Finance Authority (NHHFA) programs or incentives related to housing development.
Whether you're looking to house aging family members, generate rental income, or simply add value to your property, an ADU is a smart investment in Pembroke, NH. Connect with a licensed and experienced ADU contractor in Pembroke to get started with a site evaluation, design consultation, and a clear roadmap through the local permitting process.