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πŸ—οΈ Accessory Structures/ADU Rules

ADU Rules: Castro Valley vs Oakland

How do adu rules rules compare between Castro Valley, CA and Oakland, CA?

Castro Valley and Oakland have similar restriction levels.

Castro Valley, CA

Alameda County

Few Restrictions

Alameda County complies with California Government Code 65852.2 mandating ministerial ADU approval. ADUs up to 1,200 sqft for detached and JADUs up to 500 sqft are allowed on most residential lots.

View full Castro Valley rules β†’

Oakland, CA

Alameda County

Few Restrictions

Oakland permits ADUs on all residential lots under Gov Code Β§65852.2 and Planning Code 17.103. Ministerial 60-day approval up to 1,200 sq ft, 4-foot setbacks, and no parking mandate within half a mile of transit.

View full Oakland rules β†’

Key Facts Comparison

FactCastro ValleyOakland
State lawGov Code 65852.2-
Detached ADU max1,200 sqft-
JADU max500 sqft-
Side/rear setback4 feet-
Review time60 days ministerial-
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Highlighted rows indicate differences between cities.

Castro Valley FAQ

Do I need a public hearing?

No, ADUs are approved ministerially by county staff under state law; no planning commission or neighbor notice is required if the application meets objective standards.

Can I sell my ADU separately?

AB 1033 (2023) allows separate sale as condominium only if Alameda County opts in by local ordinance; check current county policy.

Oakland FAQ

Compare other topics

See how Castro Valley and Oakland compare on other ordinance categories.

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