ADU Contractors near Concord, MA
Boston ADU Builder
807 Massachusetts Avenue, Boston, MA 02118
17.7 miles
Boston ADUs add rental income ($1,500–$3,000/month), boost property value, and support multi-generational living. Boston ADU Builder offers detached, attached, garage, and basement conversions, handling design, permits, and construction in 8–1... read more
NE Tiny Homes
969 Waterman Avenue, East Providence, RI 02914
44.5 miles
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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Republic Building Contractors
30 Log Bridge Road, Middleton, MA 01949
21.7 miles
Republic Building Contractors is a full-service ADU contractor in Massachusetts handling design, permits, and construction under one roof. They build detached, attached, and garage conversion ADUs, with projects averaging 6–9 months.
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Honorato Company
34 Commerce Way, Woburn, MA 01801
13.5 miles
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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BuildX- Your Building & ADU Experts
1 Marion Drive, Carver, MA 02330
48.2 miles
BuildX is a trusted ADU contractor in Southeastern Massachusetts with 40+ years of experience. They offer custom stick-built accessory dwelling units, granny flats, and in-law suites with a 100-day build guarantee and transparent pricing.
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Spring Home Improvement
16 North Washington Street, Attleboro, MA 02760
34.1 miles
Spring Home Improvement offers expert ADU contractor services in Norfolk, MA. Family-owned since 2012, they handle design, permits, and construction with 10+ years of experience, transparent pricing, and a one-year labor warranty.
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KBR Remodeling & General Contractors
Johnston, RI 02919
44.2 miles
KBR Remodeling & General Contractors builds ADUs in Rhode Island, including garage conversions, basement ADUs, in-law suites & detached guest houses. Family-owned since 1993, woman & veteran-owned, licensed & insured with 50 years ... read more
Avalon Building Systems
560 Turnpike Street, Canton, MA 02021
25 miles
Avalon Building Systems builds custom modular homes and ADUs across the northeastern US. A VA Certified Builder, they offer turnkey services, Energy Star-compliant construction, and compact floor plans like in-law suites and backyard cottages.
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Mass ADU
144 Arlington Road, Woburn, MA 01801
12.9 miles
Mass ADU is a Massachusetts-based ADU contractor offering full-service accessory dwelling unit construction. Services include free consultations, permitting, design, and build. They serve homeowners statewide with a clear 3-step process.
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All City Remodeling
3 Sophie Rd, Peabody, MA 01960
20.4 miles
All City Remodeling Co. offers ADU construction, period molding installation, and beam ceiling paneling in Boston, MA, and North Shore communities including Hamilton, Salem, and Manchester-by-the-Sea.
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Regulus Construction
36 West Street, Milford, MA 01757
22.7 miles
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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Amex Construction
15 Industrial Way, Hanover, MA 02339
36 miles
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 contrac... read more
Steveworks LLC
108 Cabot Street, Newton, MA 02458
12.7 miles
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
River City Boston
9 Illinois Avenue, Somerville, MA 02145
16.4 miles
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.
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Walczak Design and Build LLC
25 South Main Street, Ipswich, MA 01938
32 miles
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... read more
Other cities in Massachusetts
What you need to know
ADU Contractors in Concord, MA: Building in a Historic New England Town
Concord, Massachusetts is one of the most historically significant towns in the United States, home to the site of the first battle of the American Revolution and the birthplace of the Transcendentalist movement. This rich heritage means that ADU contractors in Concord, MA must navigate a unique set of considerations, including strict historic preservation guidelines and design standards that protect the town's iconic character. Working with an experienced accessory dwelling unit contractor in Concord is essential to ensure your project respects both local aesthetics and regulatory requirements.
Concord Zoning Bylaws and ADU Regulations
Massachusetts passed Chapter 40A Section 3, which requires all municipalities to allow ADUs by right on single-family lots. Concord has aligned its local bylaws accordingly, but homeowners must still comply with specific local requirements. Key regulations that ADU builders in Concord, MA must follow include:
- Size limitations: ADUs are generally limited to no more than 900 square feet or a percentage of the primary dwelling's floor area.
- Owner-occupancy: Concord may require that the property owner occupy either the primary residence or the ADU.
- Setback requirements: Detached ADUs must comply with Concord's existing setback rules for accessory structures.
- Historic District compliance: Properties within Concord's Historic Districts require approval from the Concord Historic Districts Commission before construction begins.
- Design standards: Exterior materials, rooflines, and architectural details must be compatible with the existing structure and neighborhood character.
Types of ADUs Built by Concord Contractors
Skilled ADU contractors serving Concord, Massachusetts are experienced in building a variety of accessory dwelling unit types to suit different property layouts and homeowner needs. Common ADU types include:
- Attached ADUs – additions connected to the main home, ideal for expanding living space
- Detached ADUs – standalone backyard cottages or carriage house conversions
- Basement ADUs – conversions of existing basement space into a fully functional unit
- Garage conversions – transforming an existing detached garage into a livable space
Why Hire a Local ADU Contractor in Concord, MA?
Hiring a local ADU contractor in Concord offers significant advantages. Local professionals understand the town's permitting process through the Concord Building Department, are familiar with the Historic Districts Commission review process, and have established relationships with local inspectors. This local expertise can save homeowners considerable time and money throughout the project.
Whether you're looking to create rental income, house a family member, or increase your property value, a qualified ADU contractor in Concord, MA can guide you through every step — from initial design and permitting to final construction. Given Concord's unique regulatory landscape, working with an experienced professional is not just helpful — it's essential.