Find the best ADU builders and contractors across California. Browse 212 cities with 739 verified builders ready to help with your accessory dwelling unit project.
A+ Construction & Remodeling is a family-owned business with over 30 years of experience, specializing in ADU construction and home remodeling in the Sacramento area.
Specializing in ADU construction and related services in North Highlands, CA.
Specializing in ADU construction and related services in Los Angeles, CA.
Specializing in ADU construction and related services in San Francisco, CA.
Specializing in ADU construction and related services in San Jose, CA.
We are a family owned and operated construction and design company with over 24 years of experience.
Specializing in ADU construction and related services in San Jose, CA.
High-End Design & Luxury Craftsmanship in Greater LA
Specializing in ADU construction and related services in San Jose, CA.
Full-service ADU construction companies that handle everything from design to completion.
Specialists in converting existing garages into livable accessory dwelling units.
Companies that manufacture and install prefabricated accessory dwelling units.
Builders specializing in custom-designed ADUs tailored to your property and needs.
Builders focused on detached backyard cottages and guest houses.
Contractors specializing in attached or detached in-law suites and granny flats.
Firms offering integrated design and construction services for ADUs.
Builders specializing in tiny homes and compact living spaces.
Licensed general contractors experienced in ADU construction and renovation.
Companies that help navigate ADU permitting, zoning, and regulatory requirements.
California is home to a growing ADU market with 739 builders across 212 cities. Accessory dwelling units are becoming increasingly popular in California as homeowners look for ways to add living space, generate rental income, or provide housing for family members. Whether you're looking for a prefab ADU, custom-built backyard cottage, garage conversion, or in-law suite, our directory helps you find experienced local builders who understand California's building codes and permit requirements.
ADU regulations vary by city and county in California. Many municipalities have recently updated their zoning laws to make it easier to build ADUs. Our listed builders can help you navigate local regulations, obtain necessary permits, and complete your project on time and within budget.