24 filmed scenes at 650 South Spring St, Los Angeles CA on September 28th-30th. Residents there reported that a SWAT team and a black SUV pulled up to a building with Jack Bauer getting out of the vehicle and entering a building firing off shots. Freddie Prinze Jr (Head of CTU Field Ops Cole Ortiz) and Matthew Yang King (CTU Swat) were also there.
Over the next two days (October 1st & 2nd) the crew will be filming at 506 South Grand Ave, Los Angeles CA. That’s the location of the Millennium Biltmore Hotel (pictured right) in downtown LA. Many feature films and television series including Ghostbusters, Spider-Man, Daredevil, NYPD Blue, and CSI: New York have used that location to fill in as New York.
Finally, it appears as if there will be some filming done in New York City after all – not for an episode, but for promotional footage. A search is currently underway in the area for a Kiefer Sutherland stand-in for next week. You may recall the 24 season 7 TV spots with Jack Bauer walking past famous DC landmarks like the Washington Monument – it sounds like this will be something similar. So 24 fans in New York, be on the lookout for Kiefer!
Source: On Location Vacations, Others