California / Builders / Us Modular Inc
Licence verified, no local permit history
CSLB #943047 · US MODULAR INC · Corporation
Prefab ADU builder based in Hemet. Builds detached ADUs and manufactured ADUs, built in a factory and installed on site. Says it serves 7 California cities.
No ADU permits are on file under this licence in the cities we cover. Most California cities do not publish the contractor's name on a building permit, so this usually reflects what a city discloses rather than what a builder has built. Ask them directly for recent addresses and permit numbers you can look up.
| City | Standing | ADU permits | Pre-approved plans |
|---|---|---|---|
| Danville | Licensed | none | no |
| Los Angeles | Licensed | none | no |
| Pasadena | Licensed | none | no |
| Sacramento | Licensed | none | no |
| San Diego | Licensed | none | no |
| Santa Monica | Licensed | none | no |
US Modular is a factory-built housing company in Calimesa that sells and installs modular ADUs across Southern California, including West Los Angeles. Its catalogue spans backyard homes, granny flats, casitas and pool cabanas, and it also builds single-family and multi-family modular housing. Units are manufactured off site and set on a permanent foundation.
The company’s own description · licence shown on their advertising matches the state register
ADU Standards does not issue zoning determinations and does not endorse contractors. Licence details are from the California Contractors State License Board, checked 2026-08-15. A city that pre-approves a plan has vetted the plan, not the builder. Always confirm licence standing at cslb.ca.gov before you sign anything.