Garage conversion rules in San Leandro, CA — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Converting an existing attached or detached garage into an ADU or JADU is a ministerial 60-day approval under San Leandro Zoning Code Sec. 2.04.388, and California Government Code Sec. 66314 prohibits the city from requiring replacement of the displaced parking spaces.
San Leandro Zoning Code Section 2.04.388 implements California Government Code Sections 66310-66342 (the state ADU statute, renumbered from the former 65852.2/65852.22 framework) and requires ministerial building-permit review and approval within 60 days of a complete application. A JADU created within the existing single-family residence — including an attached garage — must be no more than 500 sf and complies with state Gov. Code Sec. 66333. When an existing garage is converted to an ADU or JADU, the city may NOT require replacement parking under Gov. Code Sec. 66314(d). Setbacks are not required for ADUs/JADUs converted from existing legally established space. The city does require that the former garage door opening be replaced with exterior wall material, color, and door/window trim matching the main house. Unpermitted garage conversions — meaning a garage converted to living space without going through the ministerial ADU process — remain a top code-enforcement issue and can be ordered restored to garage use.
Unpermitted garage conversions detected by Code Enforcement trigger a Notice of Violation requiring the owner to either (a) legalize through the ADU/JADU ministerial process, or (b) restore the garage to its original state via building permit. Administrative citations under SLMC Title 1, Chapter 1-12 escalate to $500 per offense. A converted garage without legalization may also be flagged at point of sale and during refinance appraisals.
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