Commission clarifies ADU rules: internal ADUs on nonconforming lots require conditional use permit

Oct 1, 2025

Commission staff clarified that under the town’s adopted accessory dwelling unit (ADU) rules, internal ADUs on lots with primary dwellings that are legal nonconforming uses must secure a conditional use permit; detached ADUs are prohibited on nonconforming lots. Planning staff said applicants must apply for conditional use permits and the land-use

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A public speaker asked the commission to clarify provisions in the town’s adopted ADU section (cited as section 7.a.4), asking whether accessory dwelling units are allowed on lots that are legal nonconforming primary-dwelling lots.

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