ADU Requirements in Monson, MA
Hampden County • Updated for 2024 MA ADU Law
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About ADUs in Monson, Massachusetts
Monson is located in Hampden County, Massachusetts. Under the 2024 Affordable Homes Act, homeowners in Monson 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 Monson 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.