CTU Los Angeles building

The CTU Los Angeles building is designed to be as efficient as possible and to made make the task of fighting terrorist as easy and pleasant as possible.

The original building was used until after Day 3 when it was changed with the building seen in Day 4 and Day 5.

The Original Building
The original CTU Los Angeles building was based around a large room known as the bull-pen (24: The Game). The bull-pen was made up of two levels and contained many desks on the lower level and a walkway on the higher level. The lower level was also home to the briefing room and linked to the holding rooms.

On the upper level, a metal walkway connected the office of the Special Agent in Charge with the several other offices and the Field Operations department. The upper level linked with the bottom one via stairs.

CTU Los Angeles also had several Tech Rooms around the building. The primary tech room was Tech 1, which was shielded from EMPs. The room was centered around a circular station with several monitors.

It is assumed a lot of the complex was underground seeing that lifts have been seen with many buttons and, from the outside, the building looks quite small.

The building also had an underground parking lot. (Day 1 11:00pm-12:00am)