United States Courthouse (First Street, Los Angeles)

The United States Courthouse  at 350 W. First Street in the Civic Center district of downtown Los Angeles opened in October 2016. The building, which houses federal courts and federal law-enforcement departments, is sometimes called the First Street Courthouse.

It is 10 stories tall with 533000 sqft of floor space, containing 24 courtrooms and 32 judicial chambers and stands out in the downtown skyline with its impressive glass façade. Emphasis was on the building's being sustainable, secure and cost-effective, according to the GSA which oversaw the project to build the new courthouse, and to optimize court operations, address security concerns, and provide space for the U.S. District Court in Los Angeles. It consolidates many functions that previously were spread across multiple buildings. Major tenants are the U.S. District Court serving the Central District of California, U.S. Marshals Service, GSA, federal public defender (trial preparation space), and U.S. Attorney's office (trial preparation space).

The building features public artworks by local artists Catherine Opie (Yosemite Falls), Mary Corse (lobby hanging), and Gary Simmons (six-panel lobby piece).