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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Luxe & Co. Accessory Dwellings is a Massachusetts ADU builder offering full-service design, construction, and permitting. Founded by Hope Beckman and Sage Conti, they specialize in high-end ADUs including in-law suites, carriage houses, and ho... read more
Platt Builders is a home remodeling company offering kitchen, bathroom, and whole-home renovations. They focus on custom design, quality craftsmanship, and clear communication, managing every project from planning to completion.
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North Shore ADU Home Builders LLC builds custom ADUs up to 900 sq ft across Massachusetts. Services cover design, permits & construction. Rental income ranges $1,800–$3,500/month. Property values may rise $100K–$250K.
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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 evalua... read more
True Measure Construction, a Westborough, MA general contractor, specializes in full-service ADU construction—covering permits, site prep, and finishing—plus kitchen and bathroom remodeling for a complete home improvement solution.
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Steveworks LLC completed a whole house remodel in Newton, redesigning the floor plan, replacing windows, siding, and roofing, and upgrading insulation. They also built an accessible ADU above a garage, featuring a full kitchen, curbless shower, an... read more
Mass Tiny Homes helps 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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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 homeo... read more
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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Hawthorn Builders offers end-to-end ADU construction, managing consultation, design, permitting, and building. As a detached ADU and garage conversion contractor, they complete accessory dwelling units in ~90 days with minimal disruption.
read moreHollis, New Hampshire is a charming rural town in Hillsborough County known for its scenic farmland, historic stone walls, and strong commitment to preserving its small-town character. With a population of roughly 8,000 residents and a predominantly residential and agricultural landscape, Hollis presents a unique environment for ADU (Accessory Dwelling Unit) contractors. The town's dedication to maintaining its rural aesthetic means that any ADU construction must be thoughtfully planned to align with local zoning ordinances and community values.
Before breaking ground on an ADU project in Hollis, contractors and homeowners must navigate the town's specific zoning regulations. Hollis operates under its Zoning Ordinance, which governs land use across residential and agricultural zones. Key regulatory points that experienced ADU contractors in Hollis, NH must be familiar with include:
Working with a licensed ADU contractor familiar with Hollis, NH is essential for a smooth building process. Local contractors understand the nuances of the town's permitting process, the requirements of the Hollis Building Department, and the environmental sensitivities of the region, including wetland buffers and soil conditions common in southern New Hampshire. A knowledgeable contractor will help ensure your project complies with New Hampshire RSA 674:71-73, the state statute that encourages municipalities to allow accessory dwelling units.
Given the spacious lots and rural setting of Hollis, homeowners often pursue the following ADU types:
Whether you're looking to house aging parents, generate rental income, or add long-term property value, building an ADU in Hollis, NH is a smart investment. Connect with a qualified ADU contractor in Hollis, New Hampshire who understands local regulations, environmental requirements, and the community's character to bring your vision to life efficiently and compliantly.