USModular

US Modular, Inc. is a Southern California prefab and modular builder headquartered in Calimesa that designs and installs ADUs, manufactured single-family homes, MH Advantage homes, duplexes, and multi-family projects. With 70+ years of combined team experience in design, construction, and real estate development, the company offers turnkey service spanning permitting, site work, utilities, and installation, with some projects completed in as little as 90 to 120 days. Buyers can pick from existing floor plans, supply their own, or commission a custom design, and US Modular partners with specialized lenders to help qualified buyers finance their projects. The company serves San Diego, Orange County, Riverside, and surrounding Southern California markets.