Modern Backyard Homes: Built in Factories, Installed in Weeks
October 20, 2025California Expands ADU Opportunities
Governor Gavin Newsom has officially signed four new Accessory Dwelling Unit (ADU) bills — AB 462, AB 1154, SB 9, and SB 543 — continuing the state’s commitment to tackling the housing shortage through flexible, backyard housing solutions.
These new laws strengthen and streamline how Californians can plan, permit, and build ADUs and Junior ADUs statewide.
Key Highlights
✅ Faster Approvals:
Cities and counties must now process certain ADU permits within 60 days, speeding up projects for homeowners and builders.
🌊 Simplified Coastal Rules:
For homes in coastal zones, ADUs that require a Coastal Development Permit will be handled faster — and appeals to the California Coastal Commission have been eliminated to avoid lengthy delays.
🏠 Local Ordinance Updates:
Local governments must align their ADU ordinances with updated state standards or risk invalidation.
📈 Housing Goals:
These reforms are part of California’s broader effort to create 2.5 million new homes by 2031, with ADUs expected to play a major role in achieving that goal.
Why It Matters
Accessory Dwelling Units continue to be one of California’s most effective tools for creating affordable, flexible housing — whether for rental income, family members, or multi-generational living.
These new bills make the process simpler, faster, and more consistent statewide — helping homeowners unlock new value on their properties while supporting California’s housing future.
Stay Informed
Want to know how these updates affect your property or upcoming project?
📞 Contact us today to learn how to take advantage of the new ADU rules and start your project the right way.
