109 Best ADU Builders in San Diego, California
Verified ADU contractors and builders in San Diego, CA
Showing 31–60 of 109 listings — Page 2 of 4
DB construction 18 inc
Expert ADU construction services in San Diego, specializing in creating accessory dwelling units that maximize your property's potential and increase home value. From design consultation to final build, we handle every aspect of turning your vision into a functional living space.
DesginBuild Solutions
Designs 4 You Remodeling
DR Build ADU specialist
DS Legend Home Builders
Eco Home Builders Inc
EG CONSTRUCTION | ADU Builder San Diego
Elements Design & Build
Elite Living Remodeling, Inc.
EZ Design and Build
Fabrick Construction
Falcon Builders Group
Forever Builders
Fortune ADU
Fullerton ADU Builder
Garage Conversion Escondido | ADU
Gary Faith Construction, Inc.
GBC Remodeling, Inc.
Good Home Remodeling
Gottsik Construction
Ground Up Construction Management Inc.
GW Construction
H K Construction
Hauser ADU
Hernandez Custom Home Rebuilder's
HSP ADU Builders
IL Total Design and Build
Specializing in Accessory Dwelling Unit (ADU) construction throughout San Diego, this contractor transforms properties into multi-unit homes with expert design and build services. Whether you're looking to add rental income, create space for family, or maximize your property's potential, they deliver quality ADU solutions from concept to completion.
In N Out Builders & Home Remodeling
Jackson Design & Remodeling
JDC Build Construction & Remodeling of San Diego
Frequently Asked Questions — ADU Builders in San Diego
How much does it cost to hire an ADU builder in San Diego?
ADU construction costs in San Diego, California vary widely depending on size, type, and site conditions. Detached ADUs typically range from $150,000–$400,000+, while garage conversions and attached ADUs can be more affordable. Contact multiple builders in San Diego to get accurate quotes for your specific project.
How long does it take to build an ADU in San Diego?
In San Diego, the ADU construction timeline typically ranges from 6 to 18 months from permit application to move-in. Permitting alone can take 2–6 months depending on California local regulations. Prefab and modular ADUs often have faster timelines than site-built units.
Do I need a permit to build an ADU in San Diego?
Yes, a building permit is required for ADU construction in San Diego, California. Your ADU builder will typically handle the permit application as part of their service. California has adopted streamlined ADU permitting laws in recent years, which may reduce wait times.
What types of ADUs can be built in San Diego?
Common ADU types in San Diego include detached ADUs (backyard cottages), attached ADUs, garage conversions, basement conversions, and prefab/modular ADUs. The best type for your property depends on lot size, zoning, and budget. A local San Diego ADU builder can advise on what's allowed on your specific parcel.