Thinking about building an ADU in Massachusetts? Here’s a clear breakdown of the full process—from zoning review to construction—so you know exactly how long it takes and what to expect before you begin.

Thinking about building an ADU on your Massachusetts property? From zoning puzzles to final inspections, the process involves more than just construction—it takes local knowledge, planning, and the right support. In this blog, Mass ADU walks you through what most homeowners don’t realize about building an ADU and how we help make the experience smooth, informed, and worthwhile.

With permit timelines, seasonal delays, and rising demand, now is the smartest time to start planning your ADU in Massachusetts. Here’s why early action pays off.

Looking for a way to age in place or support a loved one without leaving home? An ADU in Massachusetts offers comfort, privacy, and long-term flexibility—all right on your own property.