ADU Requirements in Rochester, MA
Plymouth County • Updated for 2024 MA ADU Law
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About ADUs in Rochester, Massachusetts
Rochester is located in Plymouth County, Massachusetts. Under the 2024 Affordable Homes Act, homeowners in Rochester can now build accessory dwelling units (ADUs) up to 900 square feet by-right, meaning no special permit is required for compliant projects.
An ADU in Rochester can be a detached backyard cottage, an attached addition, or a conversion of existing space like a basement or garage. These units are perfect for housing aging parents, adult children, or generating rental income.