Rocket & Tigerli

Short description

At 100 meters, "Rocket" in Winterthur is the tallest wooden residential building in the world currently in planning. The building complex includes attractive rental apartments and hotel rooms. The three Tigerli building structures complement the urban ensemble and will also include rental apartments.

The study contract was juried in January 2022 and revised by 2023. Construction is scheduled to start in 2024.

The project

Implenia is developing and realizing the "Rocket & Tigerli" project on behalf of Ina Invest. It is part of the forward-looking Lokstadt site development in Winterthur and sets new standards in terms of sustainability as well as modern timber and hybrid construction methods. The innovative timber construction was developed by Implenia, ETH Zurich and the civil engineering firm WaltGalmarini. The winning project is by Schmidt Hammer Lassen Architects from Copenhagen and Cometti Truffer Hodel Architects from Lucerne. The building complex with a usable floor space of approximately 26,000m2 includes attractive rental apartments as well as hotel rooms. The Rocket high-rise will comprise 32 floors and reach a height of 100 meters. This makes it the tallest residential building made of wood in the world currently in planning, as it relies entirely on wood at its core for the so-called "tube in tube" support structure. Added to this are the advantages of a newly developed ceiling structure, the wood composite flat slab, which replaces as much concrete as possible with as few high-performance materials as possible.

Services in detail

  • Real Estate Development
  • Building construction
  • Timber construction with newly developed load-bearing system and innovative timber composite flat slab


The natural nature of wood enables an environmentally friendly life cycle of the structure and binds CO2 during its entire lifetime. During structural implementation, up to 50% less greenhouse gas emissions are generated compared to solid building materials. Other sustainability aspects:

  • Wood hybrid construction
  • SIA energy efficiency path across the entire site & SNBS Gold for Rocket & Tigerli
  • Photovoltaic system as part of the roof landscape
  • District heating connection

Further information

Project website

Ina Invest website

Interest aroused? Get in touch with us!


Back to overview