New California ADU Regulations: 15, 60, 10 Days, No Fees Starting 2026

15 days. 60 days. 10 days. $0 in fees.
These aren't random numbers — they're the new rules governing every ADU project in California starting 2026.

California stopped encouraging ADU housing development. It's enforcing it now.
Full breakdown in the infographic below.

Are you planning an ADU or know someone who is? Tag them, reshare, and save this post. These laws go into effect now — and most homeowners haven't heard of them yet.

Follow Apex Homes — we break down California ADU policy, financing, and construction every week so you never miss a change that affects your property.

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