Looking for the best ADU builders in San Diego, California? Our directory features 15 vetted adu builders serving the San Diego area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.
Cal Renovation – Legacy. Precision. Progress. With over 60 years of combined family experience in the construction industry, Cal Renovation brings craftsmanship, integrity, and innovation to every project.
Crest Backyard Homes is dedicated to helping homeowners maximize their property’s potential. It is our passion and our purpose to help people navigate the ADU process and provide the most comprehensive set of options for your property's ADU needs.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
SnapADU is a design-build firm specializing exclusively in detached new construction accessory dwelling units in San Diego County. With 100+ completed ADUs, we deliver predictable pricing through a fully accountable design-build process. Our in-house team manages every phase, from feasibility and permitting through construction, so you can stay focused on what you do best. Proudly woman-owned and trusted across San Diego.
Better Place Design & Build is your trusted, family-owned ADU experts in San Diego, California. We offer a seamless, design build process across the San Diego County.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
Specializing in ADU construction and related services in San Diego, CA.
San Diego is one of the top markets for accessory dwelling units in California. With growing demand for affordable housing, ADU construction in San Diego offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of adu builders in San Diego helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
ADU construction costs in San Diego typically range from $150,000 to $350,000 depending on size, design, and finishes. Garage conversions are generally less expensive ($80,000–$150,000), while custom-built detached ADUs can cost more. Get free quotes from our listed adu builders to compare prices.
Yes, ADU construction in San Diego requires building permits. California has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
ADU construction timelines in San Diego typically range from 4–12 months, depending on the project type. Prefab ADUs can be installed in 2–4 months, while custom builds may take 8–12 months including design and permitting.