Alameda planning board recommends updates to ADU rules, including optional condo conversions under state law

The Alameda Planning Board on June 22 recommended that the City Council adopt a package of amendments to the city's accessory dwelling unit (ADU) ordinance that incorporate recent state legislation and revise several local standards and clarifications.

Staff said the draft ordinance implements AB 1033's optional ADU condominium-conversion pathway, clarifies front-yard setback expectations for ADUs, addresses conversions of legal nonconforming accessory structures, and cleans up development standards and references to state code. Staff also explained the city's master fee schedule currently lists ADU development impact fees at zero, so the draft would not generate new impact-fee revenue for the city.

"To be clear, adopting the condominium pathway requires documentation consistent with state law, including condominium plans and homeowners-association provisions," staff told the board. The city attorney and staff advised that these elements flow from state law and that the draft ordinance follows those requirements.

Board members focused on several areas of clarification before sending the ordinance to council:

- Roof form and pitch: members asked staff to replace a strict "match the primary dwelling" requirement with more flexible language allowing a complementary roof form or an explicit threshold so steep-pitched primary roofs do not force artificially low ADU interiors.

- Rooftop patios and second-story decks: several members and commenters urged a clear threshold so small rooftop patios or modest decks can proceed ministerially (staff-level review) rather than triggering discretionary design review; staff noted the current code treats second-story roof decks as reviewable for privacy and shading impacts but agreed to propose thresholds (size and setback) for ministerial treatment.

- Driveways and curb cuts: the draft continues an existing city practice that requires removal of short driveways where a converted garage would leave a nonusable driveway; the board asked staff to cross-reference public-works standards and avoid internal code conflicts. One commenter suggested shortening the minimum retained driveway length to 15 feet to enable EV charging; staff said public-works standards and practical parking dimensions would guide the final text.

- ADU condominium conversions: several board members asked whether the city can avoid restating lengthy state mortgage and consumer-language verbatim in the municipal code. Staff said they would consult the city attorney to find a clear implementation approach and could provide an applicant handout summarizing the state-required consumer protections alongside the ordinance language.

Two public commenters urged specific edits: Hank Hernandez (Alameda Tiny Homes) asked that integrated rooftop patios not be treated as discretionary design triggers and recommended allowing shorter driveways; Mark Gier supported the condominium-conversion path as a tool to create modest starter-home ownership opportunities.

After discussion and direction to clarify language, the board voted to recommend that council adopt the ordinance with the requested clarifications and directed staff to return the redrafted ordinance for the council hearing and formal noticing.

What's next: staff will revise the draft language to reflect the board's direction (roof-pitch/roof-form wording, ministerial thresholds for small roof decks, cross-references to public-works parking rules, and removal of redundant state verbatim where practical) and will coordinate with the city attorney on the AB 1033 implementation details before the item proceeds to a public hearing at city council.