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Planning board trims ADU bylaw to align with state Affordable Homes Act
Summary
The board reviewed redline edits to the accessory dwelling unit (ADU) bylaw to comply with the Affordable Homes Act and state regulations, removing provisions the AG said would conflict with state law while retaining setbacks and limited parking rules; several questions were flagged for town council.
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At its July 15 meeting the Yarmouth Planning Board reviewed draft edits to the accessory dwelling (ADU) bylaw intended to bring local zoning into compliance with the Affordable Homes Act (section 8, Acts of 2024) and relevant state regulations (cited in meeting as 760 CMR).
Planner Kathy Williams said the edits remove definitions and prohibitions that the town counsel indicated would be inconsistent with the state law but retain locally enforceable elements such as setbacks and certain parking restrictions. "We tried to keep in as many things as we could," Williams said, noting the state prohibits some local restrictions. She said condominiumization of ADUs is not allowed under the draft and that some open questions—such as whether principal dwellings with ADUs may be operated as short-term rentals or whether a minimum livable ADU size can be drafted—need town-council input.
Board members discussed the practical effect of reduced setbacks (potentially bringing houses closer to the street), whether a 150‑square‑foot minimum is meaningful as livable space, and how the zoning changes would be coordinated with state site‑plan and occupancy rules. Williams said some record‑keeping provisions were removed because similar requirements exist in state regulation.
No final vote was taken; the board asked staff to highlight the changes and return with input from town council and the affordable housing trust.

