Structure Four levels with 32 3D-printed columns  
  Double dome made of 32 branching columns  
  Columns are reinforced and fully structural  
  124 3D-printed elements in total  
3D Print 2500 extruded concrete layers in total  
  10 mm layer height, 15-20 mm layer width  
  Total robot path length: 250 kilometers  
  Total print time: 900 hours  
Dimensions Height: 30.0 m including an existing base  
  Diameter: 7.0 m to 9.0 m  
Cupola Theater Capacity: 36 visitors  
  Total height: 8.0m, covered by dome  
Façade Removable flouscrim membrane  
Location Mulegns, Switzerland; on the Julier Pass  
     
Section diagram of Tor Alva / White Tower, showing circulation, different levels, and cupola theater
  • Architecture
  • Benjamin Dillenburger (ETHZ DBT)
  • Michael Hansmeyer
  • Team DBT: Ana Anton (Research lead), Elena Skevaki, CheWei Lin,
  • Ming-Yang Wang, Lena Kitani, Su Huang, Konrad Grasser (ZHAW)
  • Supporting Structure
  • Walter Kaufmann (CSBD)
  • Alexandro Giraldo Soto, Lukas Gebhard; Lucia Licciardello
  • Building Materials
  • Robert Flatt (PCBM), Timothy Wrangler, Lex Reiter
  • Geodesy
  • Andreas Wieser (CSEG)
  • Robotic Fabrication Laboratory
  • Mike Lyrenmann, Philippe Fleischmann, Tobias Hartman,
  • Lucas Petrus, Jonathan Leu





  • Client
  • Nova Fundaziun Origen, Giovanni Netzer
  • Team Nova Fundaziun Origen
  • Torry Trautmann, Rebecca Süderhauf,
  • Phillip Bühler, Sandro Provino
  • Site Management
  • Invias AG, Diego Casparin
  • Nova Fundaziun Origen: Anja Diener
  • Master Builder
  • Zindel+Co. AG (Zindel United), Nico Russi
  • Battaglia Bau AG (Uffer Gruppe), Sascha Pittet
  • Structural Engineer
  • Conzett Bronzini Partner AG, Jürg Conzett
  • Building Physics
  • mk bauphysik, Martin Kant

  • Companies Involved
  • Industrial Robots: ABB
  • Construction Chemistry: Sika
  • Material 3D Print: BASF, Knauf
  • Robotic Reinforcement: Mesh
  • Printed Formwork: Saeki
  • Precast Concrete Parts: Creabeton AG
  • Cement 3D Printing: Aalborg
  • Accelerated 3D Printing: Alamatis
  • Concrete Monitoring: Duramon
  • Electrical System: TGA Solutions GmbH, Markus Furer
  • Electrical Installation: Elektro Savoldelli, Claudio Savoldelli
  • Lighting Planning / Design: Tokyoblue GmbH, Serge Schmuki
  • Lightning Protection Systems: Cavegn AG, Renzo Cavegn
  • Waterproofing Work / Special Floor Covering: Bautas AG, Claudio Farrer
  • Facade Construction, Membrane: Bieri Tenta AG, Richnerstutz
  • Carpentry Work: Poltera Holzbau AG, Meinrad Poltera
  • Restoration Work Wood & Stone: Aaron und Sabine Bellini, Rizzi Malerei GmbH
  • Concrete Cosmetics: Bürgin Creations, Theo Bürgin
  • Locking Systems: Weber Prevost, Andrin Riedi
  • Scaffolding: Luzi Gerüste, Yannick Landolt
  • Global Partners
  • ETH-Foundation
  • ETH Zurich
  • Uffer Gruppe
  • Zindel United
  • Main Partners
  • Municipality Surses
  • Sika
  • Partners
  • BASF
  • Knauf
  • Conzett Bronzini Partner AG
  • Patrons
  • Renate Sick Glaser
  • Spyros N. Niarchos
  • Padrins von Mulegns
  • N.N.

The White Tower project was launched by Fundaziun Origen on June 22nd, 2021 in Mulegns, Switzerland. The launch ceremony was attended by Swiss President Guy Parmelin, Graubünden Canton President Mario Cavigelli, and Surses Municipality President Leo Thomann.

The completed White Tower was officially unveiled at a ceremony on May 20th 2025. A helicopter lifted a protective membrane to completely reveal the tower, and to open it up to the public.

2021 Planning and approval of the tower
2022 Construction of a full-scale demonstration floor
2023 Structural tests of reinforced columns
  Studies of ornamental systems
2024 January: Start of 3D column fabrication
  June: Tower assembly begins
2025 May: Unveiling of the tower
  June: First performances in theater
2030 Planned disassembly of the tower  


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