ALAMEDA ADU GUIDELINES
NUMBER OF ADUS PERMITTED: One ADU is allowed per lot that contains one primary residence.
ADU SQUARE FOOTAGE: ADU cannot exceed 1,200 square feet or more than 50% of the primary residence, whichever is less.
TYPES OF ADUS ALLOWED: All types are allowed. (Detached, Attached, Junior)
LOT SIZE: No minimum requirement.
SETBACKS: An attached ADU must comply with all height, building coverage, yard areas, and setback requirements for the primary residence.
PARKING: All units require parking of equal value.
Architectural compatibility of property is required.
ADU must be subordinate in design to the primary residence in terms of massing, height, and building footprint.
CITY OF ALAMEDA FAQ: www.alamedaca.gov
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