Massachusetts ADU Construction Services from Start to Finish
Mass ADU is a Massachusetts-based accessory dwelling unit builder dedicated to helping homeowners build for the future. Operating statewide, they provide comprehensive services covering feasibility assessments, permitting, and full ADU construction. Their approach guides clients through every stage of the process — from a free initial consultation all the way through to completed construction. Their goal is to make ADUs approachable and practical, helping homeowners create long-term solutions that support their families, finances, and evolving needs.
As a focused ADU contractor, Mass ADU brings expertise, professionalism, and a clear process to every project. Whether it involves navigating local zoning regulations, coordinating architectural design, or managing the build itself, they work to remove the complexity so homeowners can focus on the possibilities an ADU brings to their property.
A Clear Three-Step Process
Step 1: Free ADU Consultation & Property Review
Mass ADU begins every project with a free on-site consultation. Their team walks the property, discusses the homeowner's goals, and explains what types of ADUs are possible within that specific town. Prior to the visit, they complete preliminary zoning and property research to provide accurate guidance on setbacks, septic considerations, and local permitting requirements. This step helps homeowners understand:
- What type of ADU their lot can support
- Whether detached, attached, or garage conversion options are feasible
- What the permitting path looks like in their Massachusetts community
Step 2: Survey, Architecture & ADU Design
Every ADU project in Massachusetts requires a site survey, and Mass ADU connects homeowners with trusted local surveyors to map out the property, setbacks, utilities, and zoning constraints. Once the survey is complete, an architect is brought in to design the ADU layout based on the homeowner's goals, preferred model, and any custom features desired. This step delivers:
- A full property survey
- Code-compliant ADU layout options
- A complete plan set ready for permit application
Step 3: Contract, Permits & Construction
Once the survey and architectural plans are finalized, Mass ADU reviews the full project scope and moves into contract signing. From there, their team handles all permitting with the relevant city or town, coordinates with building officials and boards as needed, and schedules construction upon approval. Homeowners can expect clear communication, predictable timelines, and a smooth building process from start to finish.
Virtual ADU Workshops for Massachusetts Homeowners
In addition to their construction services, Mass ADU offers free virtual ADU workshops designed to help homeowners understand the basics of building an accessory dwelling unit in Massachusetts. These sessions cover what ADUs are, how state laws apply, and what to expect from initial planning through to final approval. A live Q&A segment is included, giving attendees the opportunity to ask questions directly.
Mass ADU is based in Woburn, MA, and serves homeowners across the state. As a dedicated detached ADU builder and full-service ADU contractor, they bring local knowledge and a structured process to every project — making it easier than ever for Massachusetts homeowners to unlock the potential of their properties.