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EDGE Suedkreuz Berlin
Berlin | 2022
The seven-storey office ensemble EDGE Suedkreuz Berlin was built entirely in sustainable modular timber hybrid construction. The larger of the two free-standing buildings covers around 20,000 sqm of floor space, making it the largest free-standing wood-hybrid building in Germany - and one of the largest in Europe. Since Summer 2022, it has served as the new German headquarters for the energy supplier Vattenfall.

The smaller building is an elongated solitaire that follows the building line of the larger office building, which is designed as a Carré with an irregular trapezoidal ground plan. The two buildings form a flank to Hedwig-Dohm-Strasse and create a new, urban forecourt with green areas and seating towards Suedkreuz station.

At the heart of the Carré building is a spacious, light-flooded atrium, spanned by a transparent ETFE foil roof resting on a wooden truss construction. The central eye-catchers are the four tree-like structures, graduated in their heights, which carry the common platforms and are connected by filigree staircases. They lead up to the adjacent office floors via the platforms, thus forming an architectural communication network. On the fifth floor there is a sky lounge with panoramic windows.

Wood is visibly found in all interior areas of the building, enriching the clear architecture with a living element and thus bringing the aspect of nature into the individual rooms of the office complex, which is conceived as an open ecosystem. The forest as the origin of the formative material wood is thus also symbolically unmistakably at the centre of the architecture.

The façades are constructed in an even grid of sustainable and weather-resistant glass-fibre concrete panels. The sustainable façade elements weigh only 30 kg per sqm and are recyclable. In addition, the façade absorbs CO2 from the air due to the thinly ground cement top layer and thus has a decarbonising effect.

In the construction of the buildings, the focus was on reducing the CO2 footprint as much as possible, in particular the weight of the complex, using sustainable materials and reconciling the aesthetics of the building with an ethical approach to nature. The use of prefabricated modules had a positive impact on various aspects of the construction process.

Through the intelligent combination of wood with concrete, the modular hybrid solution from CREE-Buildings can save up to 80 percent CO2 per sqm of floor area. A low construction weight, shorter shell construction times, high planning and cost security and long durability are further advantages of this construction.

Both the Solitaire and the Carré have a flexible modular floor plan grid on all levels, which can be adapted to individual wishes when converted. This allows modern, multifunctional working environments to be created.

Both buildings of the office complex share an underground car park in the basement with 218 tenant-owned parking spaces geared towards e-mobility. Around 100 bicycle parking spaces, also for e-bikes, are located in the bicycle room and 32 more in the outdoor areas. Biomethane block-type thermal power stations ensure an efficient heat supply.

Supported by the timber hybrid construction method, the project is DGNB Platinum pre-certified and will receive Germany's first WELL Core & Shell Gold certificate.

Client: SXB S. à r. l. / EDGE
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