ADU Contractor in Los Angeles
Build Construction Corporation is a licensed Los Angeles ADU contractor helping homeowners add detached, attached, and conversion accessory dwelling units across LA County.
Accessory dwelling units (ADUs) are one of the most flexible ways to add value, livable space, and rental income to a Los Angeles property. Whether you want a backyard cottage for family, a long-term rental, or a home office, the right ADU depends on your lot, zoning, and goals.
We've worked on ADU projects throughout Los Angeles and the surrounding cities, and we handle the full process — feasibility, design, structural and energy plans, permits through LADBS or your local building department, and construction with our own crews and trusted subcontractors.
Every project starts with a free property review so you understand what's actually possible on your lot before you spend money on plans. From there, we put together a clear scope, schedule, and budget so there are no surprises during construction.
- Detached ADUs up to 1,200 sq ft
- Attached ADUs built off your existing home
- Garage and accessory conversions
- Full permit handling with LADBS and local cities
- Licensed and insured — CSLB #1124836
Frequently asked questions
See what you can build on your property
Use our free calculator to check eligibility, estimated rental income, and project options in about two minutes.