Accessory Dwelling Unit Contractors Serving MetroWest Massachusetts
Regulus Construction is a licensed, full-service ADU contractor based in Massachusetts, serving MetroWest and surrounding communities. They manage every phase of an accessory dwelling unit project — from initial feasibility assessment and architectural design through municipal permitting, construction, and final inspection.
Whether a homeowner is planning a detached backyard cottage, a garage conversion, or an attached in-law suite, Regulus Construction brings working knowledge of Massachusetts ADU regulations, local zoning bylaws, and the building code requirements that vary from town to town across their service area.
Since Massachusetts passed its ADU-by-right legislation, homeowners across the state have had new opportunities to add living space, generate rental income, or house aging family members nearby. Regulus Construction has been active in this space, helping families work through the process from concept to keys.
Types of ADUs Regulus Construction Designs and Builds
Detached Backyard ADU
A standalone backyard cottage built on the homeowner's property, offering privacy and independence. This type of unit is commonly used for rental income, a home office, or multigenerational living arrangements.
Garage Conversion ADU
An existing underused garage is transformed into a fully finished living space. This is generally a cost-effective approach to adding an ADU since it avoids new foundation work. Regulus Construction handles the full scope of garage conversion projects, including design, permitting, and construction.
Attached In-Law Suite
An addition to the existing home with its own private entrance, kitchen, and bathroom. This type of in-law suite is a practical option for aging parents or adult children who need nearby but independent living space.
In addition to these, Regulus Construction also designs and builds basement ADUs. Each ADU type carries its own zoning and code requirements, and their team assesses each property individually to advise on the most suitable approach.
As a licensed ADU builder in Massachusetts, Regulus Construction ensures full compliance with the Massachusetts 780 CMR building code on every project. They manage all permit applications, design approvals, and construction scheduling. The permitting phase alone can take four to eight weeks, and the overall timeline to complete an ADU typically ranges from six to twelve months depending on the type and complexity of the unit.
What Regulus Construction Offers
- Licensed and insured Massachusetts general contractor
- Experience with local ADU zoning bylaws across 40+ towns
- Full-service approach: design, engineering, permitting, and construction
- Transparent fixed-price contracts
- Energy-efficient builds meeting Massachusetts Stretch Code standards
- Dedicated project manager throughout the project
Regulus Construction serves a broad range of communities throughout MetroWest Massachusetts and beyond, including: Ashland, Attleboro, Bellingham, Blackstone, Dover, Easton, Foxborough, Framingham, Franklin, Grafton, Holliston, Hopedale, Hopkinton, Mansfield, Marlborough, Medfield, Medway, Mendon, Milford, Millis, Millville, Natick, Norfolk, North Attleboro, Northbridge, Norton, Plainville, Sherborn, Southborough, Sudbury, Upton, Uxbridge, Walpole, Wayland, Wellesley, Westborough, Weston, Westwood, Whitinsville, and Wrentham.
In Massachusetts, building an ADU requires compliance with state building code, local zoning bylaws, and a building permit issued by the municipality. A licensed contractor is required to pull permits and ensure structural safety. Regulus Construction handles the permitting process on behalf of the homeowner, managing the necessary documentation and approvals from foundation to finish.