Bernapark extension, Deisswil


New life is being breathed into the former cardboard factory in Deisswil near Bern. Thanks to the multi-storey addition of wooden floors and the conversion of the existing factory buildings, a new quarter is being created.

Facts and images
Construction Data
Aerial view during erection
Aerial view during erection
Aerial view of the finished building
Aerial view of the finished building
Balcony view
Balcony view
Interior view of the finished apartment
Interior view of the finished apartment

The project
In Deisswil near Bern, more than 250 employees once produced cardboard for the whole of Switzerland before those responsible shut down the machines in 2010. Today, a new quarter is being built with 173 apartments for around 300 residents and 25,000m² of office and commercial space. The venerable factory buildings are still of good quality. They were therefore not demolished, but refurbished and converted, as well as extended by two floors with a wooden extension. Thus, a new diverse quarter was created.

The construction
The listed factory buildings consist largely of reinforced concrete structures with large window fronts. For the extension, wood was used almost exclusively: all walls and floor slabs are made of prefabricated wooden elements.

The challenge
The extension has always had to adapt to the winding factory buildings. Consequently, transferring the acting forces is not entirely trivial. The structural engineers defined points where the forces of the addition were allowed to be introduced. Different load-bearing directions of the floor elements with sometimes large spans were the result. Stuberholz called in Timbatec for the development of the demanding structural analysis concept and for quality assurance.

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Construction Data

- 173 apartments

Construction costs

- BKP 1-9: approx. 55 million Swiss francs

- BKP 214: 7 million francs

Services of Timbatec

- SIA Phase 32 Construction project

- SIA Phase 51 Implementation project

- SIA Phase 52 Execution

Bernapark AG
3066 Stettlen

GHZ Architekten AG
3123 Belp

Timberconstruction engineer
Timbatec Holzbauingenieure (Schweiz) AG Bern
3012 Bern

Stuber & Cie AG
3054 Schüpfen

Civil engineer
ingenta ag
3006 Bern

Implenia Schweiz AG Bern
3000 Bern Sulgenbach

2501 Biel/Bienne


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