ADU Contractors near Westborough, MA
Woodland Builders
195 Hanover Street, Hanover, MA 02339
41.5 miles
Woodland Builders is a full-service ADU builder serving South Shore, MA, including Hingham, Plymouth & Scituate. They manage design through construction, ensuring quality, compliance, and streamlined project management for accessory dwelling units.
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Core Remodeling Services
41 Boylston Street, Worcester, MA 01605
10.1 miles
Core Remodeling Services has built ADUs and in-law suites across Central Massachusetts since 2012. They handle zoning, permits, design, and construction. Projects range from $150K–$400K+, take 6–8 months, and are backed by a 5-year warranty.
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BuildX- Your Building & ADU Experts
1 Marion Drive, Carver, MA 02330
48.6 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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Hawthorn Builders
97 Chapel Street, Needham, MA 02492
19.1 miles
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.
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Steveworks LLC
108 Cabot Street, Newton, MA 02458
21.7 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, and chair lift for aging-in-place living.
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True Measure Construction
293 Turnpike Road, Westborough, MA 01581
2.1 miles
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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NE Tiny Homes
969 Waterman Avenue, East Providence, RI 02914
34.7 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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Bradford Construction Management
145 South Main Street, Haverhill, MA 01835
43.3 miles
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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Aureli Construction
Eugene Road, Medford, MA 02155
26.5 miles
An Accessory Dwelling Unit (ADU) is a self-contained living space on a residential property. Massachusetts law now makes ADU construction easier. Aureli Construction offers full-service ADU building, from zoning research to completed construction.
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Boston Building Concepts
275 Main Street, Watertown, MA 02472
23.1 miles
ADUs are self-contained living spaces on existing properties. Legal in Massachusetts, local zoning rules apply. Boston Building Concepts is a Massachusetts ADU contractor offering full-service design, permitting, and construction of garage conversions, in-law suites, and detached ADUs.
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Turnkey ADUs
435 Lancaster ST, Leominster, MA 01453
17.3 miles
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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River City Boston
9 Illinois Avenue, Somerville, MA 02145
27.9 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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Atlantic Property Development
444 Broadway Unit B #1069, Saugus, MA 01906
32.5 miles
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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Honorato Company
34 Commerce Way, Woburn, MA 01801
28.9 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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Baystate Group Builders Inc
8 Bellingham Road, Blackstone, MA 01504
17.3 miles
Baystate Group Builders Inc offers residential remodeling services including basement finishing, bathroom renovations, deck construction, carpentry, and painting. Led by Victor, the team is known for professionalism, clear communication, and quality craftsmanship.
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Other cities in Massachusetts
What you need to know
ADU Contractors in Westborough, MA: Building in a Historic and Growing Community
Westborough, Massachusetts is a vibrant town in Worcester County known for its rich history, strong tech industry presence, and well-preserved natural landscapes including the Westborough State Park and Lake Chauncy. As housing demand continues to grow in this desirable MetroWest community, many homeowners are turning to ADU contractors in Westborough, MA to add Accessory Dwelling Units to their properties. Whether you're looking to house aging parents, generate rental income, or add flexible living space, working with experienced local ADU contractors is essential to navigating Westborough's specific zoning and building requirements.
Westborough Zoning Regulations for ADUs
Before breaking ground, homeowners and ADU contractors in Westborough must carefully review the town's zoning bylaws. Westborough falls under Massachusetts General Law Chapter 40A, and the state's 2021 ADU legislation encourages municipalities to allow accessory dwelling units by right in single-family zones. However, local regulations still govern key aspects of ADU construction, including:
- Lot size requirements and minimum square footage thresholds
- Setback rules that determine how close a structure can be to property lines
- Maximum ADU size, typically limited to a percentage of the primary dwelling's square footage
- Owner-occupancy requirements that may apply in certain zoning districts
- Parking space provisions for the new unit
- Utility connection and septic system capacity considerations
Types of ADUs Built by Westborough Contractors
Skilled ADU builders in Westborough, Massachusetts are experienced in constructing several types of accessory dwelling units suited to the town's mix of colonial-style homes, newer subdivisions, and larger residential lots. Common ADU types include:
- Attached ADUs: Added onto the existing home structure, sharing at least one wall
- Detached ADUs: Standalone backyard cottages or carriage houses built separately from the main home
- Garage Conversions: Transforming an existing attached or detached garage into a livable unit
- Basement Conversions: Converting an existing basement into a fully functional apartment
Why Hire a Local ADU Contractor in Westborough?
Hiring a local ADU contractor in Westborough, MA offers significant advantages over working with a general contractor unfamiliar with the area. Local professionals understand the town's permitting process through the Westborough Building Department, have established relationships with local inspectors, and are familiar with the soil conditions, climate considerations, and architectural styles common in the region. This local expertise helps keep your project on schedule and within budget.
When selecting an ADU construction company in Westborough, look for contractors who are fully licensed in Massachusetts, carry proper liability insurance, provide detailed written contracts, and have a proven portfolio of completed ADU projects in the MetroWest area. Investing in the right contractor ensures your ADU is built safely, legally, and to the highest quality standards.