- Los Angeles County
- Licensed, Insured & Bonded
- 1-Year Workmanship Warranty
ADU Constructionin Los AngelesCounty, CA
NewGen ADU Builders builds accessory dwelling units for homeowners and investors across Los Angeles County, from garage conversions to new detached units. We are based in Cerritos, on the county's southeast edge, so much of LA County is within our 30-mile range. Every project is licensed, insured and bonded, and backed by a 1-year workmanship warranty.
- 1-Year
- Workmanship Warranty
- 3–6
- Month Build Timelines
- 30-Mile
- Service Radius
01 — Services
What We Build in Los Angeles County
Every ADU service we offer is available across Los Angeles County within about 30 miles of Cerritos. Whether you own a single-family home with an unused garage or a multifamily property with room for a new unit, we design and build the ADU to fit.
- 01
Garage Conversion
Turn an existing garage into a finished living unit with its own kitchen, bath, and entrance. Often the fastest path to an ADU in Los Angeles County's older neighborhoods.
Learn More - 02
Storage Room Conversion
Convert a workshop, storage building, or similar structure into a complete ADU after an honest on-site assessment.
Learn More - 03
New Ground-Up ADU Construction
Build a new unit from the foundation up when no existing structure fits or you want a specific layout.
Learn More - 04
Detached ADU
A standalone backyard home offering the most privacy for tenants or family.
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Attached ADU
A new unit that shares a wall with your home, ideal for tighter LA County lots.
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02 — Process
How It Works in Los Angeles County
- 01
Short Intake Interview
Text, call, or send the form. We ask about your property, your goals, and your budget so we arrive prepared.
- 02
On-Site Visit
We come to you anywhere in our Los Angeles County range, walk the property, and talk through which type of ADU fits your lot and budget.
- 03
Design & Written Estimate
We turn the visit into a plan and a written estimate showing exactly what is included. You approve before work starts.
- 04
Build & Handoff
Construction runs 3 to 6 months. We keep you updated, walk the finished unit with you, and back it with a 1-year workmanship warranty.
03 — Why Choose Us
Why Los AngelesCounty HomeownersChoose Us
Based Right Here
Our home base is Cerritos, in southeast Los Angeles County. We are not a crew driving in from far away; your project is in our own backyard.
Licensed, Insured & Bonded
Your property is protected throughout the build, and documentation is available on request.
Honest, Transparent Pricing
Most projects fall between $150,000 and $200,000, and we tell you where yours lands before you commit.
1-Year Workmanship Warranty
If anything we built needs attention in the first year, we come back and fix it.
ADUs Are All We Do
Garage conversions, storage conversions, and new attached and detached units are our entire business.
04 — Get Started
Ready to Start Your ADUin Los Angeles County?
Reach out and we will schedule a short intake call, then come to your property anywhere in our Los Angeles County range for a free on-site visit and written estimate.
- Free on-site estimates across Los Angeles County
- Licensed, insured and bonded
- 1-year workmanship warranty
- Text us at (562) 308-6040
05 — FAQ
Common Questions from LosAngeles County Homeowners
Do you serve all of Los Angeles County?
We serve properties within about 30 miles of Cerritos, which covers a large part of southeast and central Los Angeles County. If you are farther out, reach out and we will let you know honestly whether we can take the project.
How far do you travel for a site visit in Los Angeles County?
Anywhere within our 30-mile range from Cerritos. The intake call and site visit are free and carry no obligation.
How much does an ADU cost in Los Angeles County?
Our projects run between $150,000 and $200,000. Conversions sit at the lower end and new detached construction at the upper end. You get a written estimate after the on-site visit.
How do I get started if I am in Los Angeles County?
Text or call (562) 308-6040 or send the form. We set up a short intake call, then schedule your on-site visit.
06 — Service Area
Serving Los Angeles Countyand Surrounding Areas
Los Angeles County is home to our Cerritos headquarters and sits at the center of our service range. We also serve neighboring Orange County. Near the edge of our range? Text us and we will confirm.
Los Angeles County
Based in Cerritos and proud to serve Los Angeles County. Get your free ADU estimate today.