Planning staff presented a package of zoning-text edits that rename accessory dwelling units (ADUs) as "additional dwelling units," set size and permanence criteria, and clarify how manufactured and mobile homes fit into ADU rules.

"So starting with article 1, we added a definition of dwelling unit or or accessory dwelling unit. We changed the word accessory dwelling unit to mean, the word additional because the board last month...didn't want to, limit the size of a second dwelling unit," staff member Mark said while reviewing the draft. The draft substitutes "additional dwelling unit" throughout and defines it as a "second permanent independent single-family dwelling located on the same zoning lot as the principal single-family dwelling," language the commission edited during discussion.

On size, staff proposed a bright-line maximum of 1,200 square feet for ADUs rather than sizing them proportionally to the principal dwelling. "Now it's like, if you've got a, you know, a house out there right now, your ADU can be 1,200 square feet maximum," Mark said. Commissioners discussed special circumstances (for example, accessibility needs or vehicle lifts) and noted property owners could seek variances if a larger ADU were necessary.

Commissioners and staff debated whether manufactured homes should qualify as ADUs. Mark said manufactured homes could be permitted in agricultural districts by right and that the county currently allows a temporary mobile/manufactured home via a Board of Zoning Appeals (BZA) special exception for caregiving purposes, typically limited to three years and subject to renewal. "With that approval, it's limited to 3 years, subject to renewal," Mark said of BZA-authorized temporary placements. Several commissioners said if a manufactured home is intended to count as an ADU it should be placed on a permanent foundation, and they asked staff to add a clear definition of "permanent" (examples discussed included concrete slab or foundation as opposed to units on wheels or blocks).

The draft also clarifies that ADUs cannot be sold separately from the principal lot unless subdivision rules are satisfied.

No final vote was taken Oct. 16. Staff said it would add explicit language about permanence and foundations and return with revised draft language and cross-references.

The commission plans further review before scheduling any public hearing.