Accessory dwelling unit contractor in California
Last updated: September 24, 2026
California ADU projects are diverse across our state. Major metros include Anaheim, Riverside, Moreno Valley, Oxnard, Elk Grove, and Santa Rosa. Our mild climate allows for year-round construction, but local rules vary significantly.
Choose your city
California's ADU laws are designed to encourage more housing. Many cities have streamlined permitting processes. However, each city has its own specific zoning requirements. These can include lot size, setbacks, and parking rules. We are experts at navigating these local nuances across the state.
Our mild climate in California generally allows for construction throughout the year. This is a big advantage for ADU projects. We still consider the occasional rain or heatwaves. The biggest variable is often local permitting and inspection timelines. We manage this process for you, ensuring your ADU is built to code and on schedule.
Common questions
What are the disadvantages of ADUs?
Potential downsides can include increased utility costs for the main home, potential for neighbor complaints regarding privacy or aesthetics, and the complexity of navigating local zoning and permitting processes, which can sometimes lead to delays or unexpected costs.
What are the rules for ADUs in California?
California has statewide ADU laws that streamline approval and limit local restrictions, mandating minimum ADU sizes and owner-occupancy requirements. Local jurisdictions may have additional specific zoning ordinances, setback requirements, and design guidelines that homeowners must adhere to.
How do I know the pros are trustworthy?
What if I have questions about Denver's ADU regulations?
Useful reference: HUD ADU resources — ADU policy and financing research.