Completion of the timber construction work at the green depot in Mannheim

• Timber construction time of just nine months
• Combining sustainability and modernity
• Overall completion expected at the beginning of 2027

The timber construction work at the green depot in Mannheim was completed in May 2026 after a construction period of just nine months. The finishing work is currently in full swing. The final interior work and outdoor facilities will follow before the project is expected to be completed in early 2027.

The pioneering working quarter was realised on behalf of GBG Sonderimmobilien GmbH and comprises a three-storey main building in timber hybrid construction with administration and office space. The complex is complemented by workshop buildings with a timber façade and a surrounding, U-shaped and greened garage. The green depot is intended to combine sustainability and modern workplaces.

Timber construction at the green depot
A total of around 1,700 m³ of timber was used as part of the project. The last remaining work is currently being carried out. Before they are completed, the doors and gates will be installed.

Main building: The main building was constructed using a timber hybrid construction method. Among other things, around 4,400 m² of HBV ceiling elements made of prefabricated concrete slabs and glulam ribs were used. The construction combines the properties of timber and concrete and fulfils high requirements in terms of stability and durability. Around 130 m³ of BauBuche was used for the load-bearing columns and beams. Due to its high compressive strength, the material is particularly suitable for load-bearing structures. In addition, around 2,500 m² of timber frame exterior walls were used.

Workshops: The workshop buildings were also given a timber façade. Around 2,000 m² of wall elements with integrated window elements were installed here. In addition, 30 lattice girders with a span of 20.15 m each were used, enabling generous and flexible room structures.

"The realisation of the green depot has shown how efficient modern timber construction can be in a municipal context. We were able to fully utilise the advantages of industrial timber construction: short assembly times, reduced construction site logistics and a high quality of execution. At the same time, the project fulfils demanding functional and design requirements. The result underlines the high level of expertise of everyone involved." Stefan Mederle, Head of Timber Construction and Façade at ZÜBLIN Timber.