Lobby space is on floor 7 and includes the foyer on floor 8. Lobby space is divided into 3 areas for utilization, that is, Lobby A, Lobby B and Foyer.

Lobby A is a 204 square-meter area on floor 7 connected with the building’s elevator and escalator. It is a high-ceiling hall with the large LED screen.

Lobby B is a 163 square-meter area right next to Lobby A with lower ceiling. The area connects to the entrance of the Playhouse.

Foyer is a 252 square-meter area on floor 8. It connects with the escalator from Lobby A of floor 7 to access the Theater. Foyer is considered the center Siam Pic-Ganesha, neatly designed and properly aligned with art of architecture. Foyer is spacious and it is the only place where the landscape of Siam Square One can be seen from.