With the „Roots“ project, an 18-storey timber tower is being built in Hamburg‘s HafenCity. A total of 181 residential units will be built here, as well as exhibition rooms and the administration of the German Wildlife Foundation. All upper floors will be built with solid timber ceilings and interior walls, only the basement and ground floor as well as the access cores of the hybrid building are planned as concrete structures. This construction method not only contributes to the reduction of the CO2 footprint, but also limits noise emissions during construction and creates a healthy indoor room climate. A total of 5,500 m³ of softwood will be used in the realisation. A second façade made of glass ensures fire, UV and moisture protection. Sliding glass elements protect the surrounding loggias from wind and weather. With an exhibition centre featuring nature and wildlife themes, Hamburg gains a significant venue that will generate enthusiasm for nature and diversity and raise awareness for the preservation of both.