ADU Construction Plans for Massachusetts Homeowners

If you're in Newton or Somerville, you may already have a rough ADU sketch on the kitchen table, perhaps a small backyard apartment for an aging parent or a rental unit to create more flexibility. The sketch is a useful starting point, but it won't answer the questions your building department, engineer, lender, or future […]
ADU Design and Build in Massachusetts: A Homeowner’s Guide

In Cambridge, a homeowner with a narrow lot near Inman Square may be weighing a backyard cottage for aging parents, a private place for an adult child, or a rental unit that helps offset the mortgage. The question usually isn't whether an ADU sounds useful. It's whether the lot, local zoning, utilities, budget, and permit […]
ADU Zoning Requirements: A Massachusetts Guide

In Cambridge, a homeowner can have a clear family reason for building an ADU, such as creating a private home for an aging parent, while the assessor or building department raises a very different question about lot coverage, setbacks, or the existing number of dwelling units. That's why ADU zoning requirements can't be reduced to […]
ADU Construction Cost Per Square Foot in Greater Boston

In Greater Boston, most ADU projects land around $250 to $400 per square foot, with detached new builds near the top of that range. A complicated detached unit can exceed those planning numbers when excavation, utilities, finishes, or site access create unusual costs. In Arlington, Belmont, or Cambridge, homeowners usually start with a simple question, […]