Commander's office

The Commander's office is a large room in Atlantis which is connected through a short gangway to the operations center and which provides a sight on the gateroom. It was used as Dr. Weir's personal office as well as a meeting room for small or unofficial meetings, most times between the Atlantis senior staff.

Trivia
According to Martin Gero, the room of the office was at first planned to be only some free space but when Dr. Weir put her bag into it in the pilot episode, it was chosen to become her office. During the break between season one and two the room was expanded.