The extension of the Bikram Yogaschool in Amsterdam is a strongly garden related open structure in wood and glass. The garden behind the yogaschool where the students can rest after class is dominated by a large pond surrounded by huge bamboo. The clients were very attached to the bamboo so the extension is designed with a minimal inpact on the existing bamboo. In order to achieve a sense of cohesion between the building and its surroundings the small building is differentiated in hight as well as in width. The higher part offers a space for rest. In the lower part are extra showers. The space inside is continued towards the garden without obstructions. Pebbles as a finish and the many open partitions further enhance the outdoor feeling. The roof is coverd by moss-sedum. During the building periode lessons in the school went on uninterrupted. Transport of materials went as much as possible by air.