Accessory Dwelling Units

Accessory Dwelling Units (ADUs) are small, independent living spaces built on the same property as an existing home — perfect for in-law suites, guest houses, rental income, or downsizing without leaving your neighborhood. Until recently, strict zoning laws made ADUs nearly impossible to build in Massachusetts, but recent state legislation has opened the door for homeowners to add these versatile units. Now allowed up to 900 square feet, ADUs offer a smart, flexible way to expand your property’s value and functionality.