Battle McCarthy worked with Chicago based architects, Perkins & Will to provide a fully integrated Engineering Design service for the new Federal Courthouse in Los Angeles, California. The 1,000,000 sq. ft. project has an estimated construction cost of $350 million dollars (£209 m) and is being financed and managed by the U.S. General Services Administration (GSA).

Battle McCarthy intends to make the LA Courthouse a landmark self-sustainable building. The new Courthouse will also utilise specialist steel structures to create a unique structure that is designed to withstand temperature, gravity, wind, earthquakes and potential bomb blasts.