100 Best ADU Builders in Los Angeles, California
Verified ADU contractors and builders in Los Angeles, CA
Showing 31–60 of 100 listings — Page 2 of 4
BUILDER 20 INC
CHN Construction
Convert Garage
Coronado Construction Company Inc
CustomCraft Contractors
D-Best ADU Company
Direct ADU
Downey ADU Builders
Dreams Renovation
Eazy ADU
EZ ADU Builders West Hollywood
EZ Dwellings
Flat Rate Remodeling Inc
Fontana ADU Builder
GCLA - General Contractor Los Angeles
Giant ADU Builders
Golden ADU
Specializing in accessory dwelling unit construction throughout Los Angeles, this contractor handles everything from initial design consultation to final installation of ADUs on residential properties. With expertise in maximizing limited spaces and navigating local building codes, they help homeowners add rental income or guest housing to their existing properties.
GreatBuildz
GreenTech Builders Inc
Guaranteed ADU Builders
Huntington Beach Pro ADU Builder
Infinity ADU
JC Retrofit Construction
Joel & Co. Construction
Kavo ADU
LA Family Builders Inc
LA Strong Construction - House Inspector
LA United Construction
LevelWorks Construct & Renovate inc
Long Beach ADU Builders
Frequently Asked Questions — ADU Builders in Los Angeles
How much does it cost to hire an ADU builder in Los Angeles?
ADU construction costs in Los Angeles, 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 Los Angeles to get accurate quotes for your specific project.
How long does it take to build an ADU in Los Angeles?
In Los Angeles, 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 Los Angeles?
Yes, a building permit is required for ADU construction in Los Angeles, 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 Los Angeles?
Common ADU types in Los Angeles 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 Los Angeles ADU builder can advise on what's allowed on your specific parcel.