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Draft raises ADU size limit and expands permitted manufactured housing in some districts
Summary
The draft zoning increases the maximum gross floor area for detached accessory dwelling units from 1,200 to 1,500 square feet and allows manufactured homes on individual lots in certain districts to comply with state HB 538; planners said these changes aim to expand affordable options while clarifying definitions.
Planning staff told commissioners that several residential‑use rules were revised to provide clarity and new housing options. One technical change increases the permitted gross floor area for detached accessory dwelling units (ADUs) from 1,200 square feet to 1,500 square feet, which staff said accommodates larger accessory units while retaining local review standards.
Staff also noted that manufactured homes on individual lots would be permitted with conditions in the rural neighborhood, waterfront community and residential districts, consistent with state affordability requirements under HB 538. Commissioners asked about definitions and whether modular units would be treated the same as manufactured homes; staff said the county differentiates manufactured housing from mobile homes and that technical definitions would be included in the ordinance text.
