 ACI Reisen is an adventure-trivial company specialized on sustainable trips around the world. For our new headquarters, we work together with Snohetta to create something unique which completely fits the core values of our company. Together with the team of ACI, we develop the concept of symbiosis. Symbiosis describes the relationship between architecture, people and nature. So it represents the core values of the company. The concept of symbiosis can be found in the timber construction and all the building details. The green facade blends the building into the surrounding forest and creates a pleasant microclimate that also contributes to the cooling of the building. The support structure for the climbing plants also acts as balconies for the employees. The timber structure spans over three floors and provides an open, communicative working environment for up to 65 employees. The building is customized for the working culture of the ACI. In a way, it's the architectural representation of the core values of this company. The building has no conventional air conditioning system. Depending on the air quality, ventilation flaps open and close automatically. ACI is an important aspect for both Snohetta and ACI. We put special emphasis in the choice of material and construction technology to reduce the CO2 footprint of this building.