Garage conversion rules in Holbrook, MA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversion rules in Norfolk County are set by each municipality through zoning bylaws and building codes. A building permit is required. The 2024 MA ADU law may facilitate some garage-to-ADU conversions by right.
Converting a garage to living space in Norfolk County requires a building permit from the local building department and must comply with the MA State Building Code (780 CMR) for residential occupancy. The converted space must meet minimum ceiling height, egress, insulation, and electrical standards. Zoning bylaws may restrict conversions in certain residential districts or require maintaining the appearance of a garage door. If the conversion creates a separate dwelling unit (ADU), the MA 2024 Affordable Homes Act (MGL c. 40A §3) may allow it by right on owner-occupied lots. Loss of required off-street parking spaces may require zoning relief in some towns. Norfolk County has no separate ordinance for garage conversions.
Building without permit: stop-work order, fines up to $500/day. Occupancy without certificate of occupancy: potential tenant housing violation.
Norfolk County, MA
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Norfolk County, MA
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Side-by-side rule comparisons with other cities in Norfolk County.
See how other cities in Norfolk County handle garage conversions.
See how Holbrook's garage conversions rules stack up against other locations.
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