Home Additions and ADU Construction in Los Angeles
A detached ADU in Los Angeles typically costs $250,000 to $450,000 and takes 6 to 12 months including permits. DN Builders Group is a licensed, bonded general contractor in Burbank that handles plans, permitting, and construction for additions and accessory dwelling units.
What's included
- Feasibility check: lot, setbacks, utilities
- Architectural plans and engineering
- Permits through the city building department
- Foundation, framing, roofing
- Electrical, plumbing, HVAC, and utility connections
- Full interior: kitchen, bathroom, finishes
- Final inspections and certificate of occupancy
Typical cost in Los Angeles
Typical Los Angeles market ranges, not a quote. Your price depends on size, finishes, and structure. We give you a fixed, itemized bid after a walkthrough.
Timeline
Plans and permits take 3 to 6 months. Construction takes 5 to 9 months. Budget 6 to 12 months total for a detached ADU.
How we work
One licensed team handles design, permitting, and construction. You approve a fixed, itemized scope before demolition starts. Change orders are documented and approved in writing — never sprung on you at the end. You get a weekly update, every week.
DN Builders Group Inc holds an active California General Building license (#1139710), carries a $25,000 surety bond, and is fully insured. You can verify the license with the California Contractors State License Board.
Questions
How much does an ADU cost in Los Angeles?
A detached ADU in Los Angeles typically costs $250,000 to $450,000. A garage conversion is cheaper, usually $120,000 to $220,000, because the foundation and shell already exist.
How long does it take to build an ADU?
Six to twelve months in total. Plans and permits take three to six months; construction takes five to nine.
Do I need a permit for an ADU?
Yes, always. ADUs require plans, permits, and inspections. DN Builders Group manages the permitting process as part of the build.
Where we work
Burbank and Greater Los Angeles.