Accessory Dwelling Units have quickly become a powerful solution to California’s housing crisis—and as of 2025, new laws make it easier than ever for homeowners to build or permit them legally. With over 80,000 ADUs permitted since 2016, the state continues to support flexible, affordable housing solutions by lifting restrictions and simplifying regulations. They are now being viewed not just as a convenience but as a powerful tool in addressing the state’s housing shortage. Homeowners across California are building Accessory Dwelling Units to house aging parents, adult children, or tenants, all while increasing their property’s overall value. At the same time, these units provide much-needed rental housing in areas where affordability remains a major concern.

Recent legislation has gone even further to support homeowners. The Assembly Bill 1033 allows for the separate sale of Accessory Dwelling Units apart from the main residence, subject to local and state approval. This means that they could potentially be sold as condominiums, giving property owners more financial options than ever before. Additionally, AB 976 extends the removal of the owner-occupancy requirement, which means homeowners are not obligated to live on-site in order to rent out their Accessory Dwelling Unit. This change has made it easier for homeowners to create passive income streams without being tied to the property. Meanwhile, AB 434 requires cities and municipalities to offer pre-approved ADU plans, making the design and permitting process more efficient and cost-effective.

With permitting numbers climbing steadily each year, it’s clear that homeowners are embracing these opportunities. The process is now far more streamlined, and the state continues to reduce costs and administrative barriers. That’s where West Coast Building and Design comes in. We specialize in helping California homeowners bring their Accessory Dwelling Unit visions to life—from navigating local permitting rules to delivering beautifully crafted, affordable custom builds. If you’ve been considering building an Accessory Dwelling Unit—whether to provide housing for family, create rental income, or add value to your property—there’s never been a better time. 

Ready to get started on your ADU project? Call us today at (619) 823-5763 and take advantage of San Diego, California’s homeowner-friendly housing laws.