Los Angeles County · Primary Market

ADU Builder in Los Angeles County.

Obsidian United Developments is a licensed California Class B general contractor providing adu builder for luxury homes throughout Los Angeles County, including Manhattan Beach, Palos Verdes, and Beverly Hills.

ADU Builder Los Angeles County
Why Obsidian United

Luxury ADU Builder, done right.

Fully permitted accessory dwelling units, from detached units to garage conversions.

As a licensed, bonded, and insured Class B general contractor, Obsidian United brings the same estimate discipline and finish quality to every Los Angeles County project — whether it's a single room or a ground-up build.

Manhattan BeachPalos VerdesBeverly HillsPasadenaLong BeachDiamond Bar
Licensed Class BCSLB License #1084732
Bonded & InsuredFully covered on every project
Family OwnedConstruction Company
39+ Years ExperienceHands-on Construction Experience
🔧Quality CraftsmanshipEvery detail, checked twice
Serving

Los Angeles County & Surrounding Communities

Manhattan Beach, Palos Verdes, Beverly Hills, Pasadena, Long Beach, Diamond Bar

Get Started

Ready to start your Los Angeles County project?

Tell us about your project and we'll follow up to schedule a walkthrough and put together your estimate.

Request Consultation