Five bills made effective on January 1, 2020 have significantly streamlined the ADU construction and approval process.Plus: The budget agreement (enacted June 27th 2023) restores $50 million for the California Housing Finance Agency’s ADU Grant Program, which provides up to $40,000 to help cover the planning and permitting costs involved in an accessory dwelling unit.- BP thread relating to your question: https://www.biggerpockets.com/...- LA County has multiple different cities with different RSOs, so this will really depend.