Platt Builders

109 Central Avenue, Ayer, MA 01432 25 miles

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.

Brittivia Homes & Construction

913 Northfield Road, Lunenburg, MA 01462 34.5 miles

20 years in business

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.

House Improvement LLC

6 Garfield Avenue, Shrewsbury, MA 01545 27.5 miles

House Improvement LLC builds fully insulated ADUs with electricity and climate control, ideal for home offices or studios. They also construct storage sheds, carports, gazebos, and pergolas for diverse residential outdoor needs.

CZ Construction Management LLC

181 Bowen Street, Boston, MA 5.8 miles

Luxury Builds

Massachusetts' new ADU legislation allows homeowners to build detached or attached accessory dwelling units. CZ Construction Management LLC helps with planning, permits, and construction of ADUs across Massachusetts, including Greater Boston.

Hawthorn Builders

97 Chapel Street, Needham, MA 02492 7 miles

Luxury Builds

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.

Horizon ADU

77 King Street, Boston, MA 02122 7.2 miles

Trusted Boston ADU builders specializing in attached, detached, and two-story accessory dwelling units. Stick-built construction ensures code compliance and lasting value. Services include design, permitting, and full project management for multig... read more

NorthEast Design + Build

2949 Hartford Avenue, Johnston, RI 02919 42.1 miles

10 years in business

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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What you need to know

Searching for top Detached ADU ADU Contractors in Watertown, Massachusetts? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Detached ADU ADU Contractor in Watertown ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Detached ADU professionals can guide you through every step.

Watertown homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.

Browse our listings to find the best Detached ADU ADU Contractors in Watertown, Massachusetts, and get started today.

Detached ADU near Watertown, MA