California’s Pre – Approved ADU Plans
California Makes ADUs Easier & Cheaper
California Makes ADUs Easier & Cheaper Want to build an accessory dwelling unit? Cities across California are offering pre-approved designs to help you:
Save on architect fees (often free or heavily discounted) Get faster permits (some in just 10 days) Simplify the entire process 
Custom plans: $5K–$15K & months to approve 
Pre-approved plans: $0–$7K & fast-track review 
Check your city or county’s website for available plans!