How much does an ADU increase property value in California? See what peer-reviewed sales data, FHFA appraisals and current appraisal rules actually show.
How does the California ADU permit process work in 2026? Follow the steps from property checks and plan preparation through the 15-business-day completeness review, 60-day ministerial decision, corrections, inspections and final occupancy.
Planning a garage-to-ADU conversion in California? Learn how to budget for design, permits, impact and school fees, utilities, construction, property taxes, contractor risk, contingency and financing using current official guidance.