We are southern California Detached ADU experts

USModular » is a second generation, full service, design build general contractor with over 35 years of experience. We specialize in factory built/ prefabricated Accessory Dwelling Units and single family homes. 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!

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