ADU rules in Santa Clara, CA — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Santa Clara permits ADUs and JADUs under California Gov Code 65852.2. Ministerial approval applies to compliant designs with no owner-occupancy requirement and no discretionary review.
Santa Clara aligns its ADU ordinance with California Government Code 65852.2 as amended by AB 68, AB 881, SB 13, and later cleanups. Single-family lots may add one detached ADU up to 1,200 square feet and one Junior ADU up to 500 square feet inside the primary dwelling. Multifamily properties may add multiple ADUs under statewide floors. Ministerial review with a 60-day decision is mandatory, and owner-occupancy requirements are suspended through the current statutory window. ADUs have no minimum lot size, reduced setbacks of 4 feet side and rear, and no covered parking replacement when existing parking is converted. AB 1033 additionally allows cities that opt in to approve ADUs as separately conveyable condominium units; check Santa Clara's current code for local AB 1033 status.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in Santa Clara County.
See how other cities in Santa Clara County handle adu rules.
See how Santa Clara's adu rules rules stack up against other locations.
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