Planning board hears draft ADU changes to align local code with state rules

Sep 3, 2026

Planners proposed aligning Londonderry's accessory dwelling unit rules with state law, including defining minimum unit sizes (950 sq ft in draft), limiting one ADU per property, and clarifying parking and subordinate-use language; board members asked clarifying questions about edge cases.

The full story

Planning staff presented draft amendments to Londonderry's ADU regulations to make local definitions and standards consistent with state law and building-code definitions.

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