About Us

USModular is a second generation full service design build general contractor with over 35 years of experience.  We specialize in factory built Accessory Dwelling Units.  We have an A+ Rating with the Better Business Bureau and we have been featured in Forbes.

We are your "One-Stop-Shop" for your detached ADU project in Southern California.  We handle everything from design, permits, installation and all site work.

Don't over complicate your ADU project.  USModular builds FASTER - BETTER - GREENER and FOR LESS!

We are the Southern California ADU experts!

Pissst... Just in case you were wondering... yes, we do more that ADUs!  

Crane Installation of an ADU
Typical ADU Installation
ADU installed in just ONE DAY!