The new project, named Guha Bambu is on the east side. This building stands in the lot of 7.5 x 26 m size consisted of new 3 levels Bamboo structure, 2 levels of the basement. The technique to build the structure is elaborated from the experimental school of the alfa omega project. The technique separates the steel plane truss structure as a roof and bamboo structure to hold the 3-floor plate under the steel structure roof.