Rocket & Tigerli

Short description

At 100 meters, "Rocket" in Winterthur is one of the tallest timber residential buildings currently in planning. The building complex comprises attractive rental apartments and hotel rooms. The three "Tigerli" buildings complete the urban ensemble and will also contain 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 pioneering Lokstadt site development in Winterthur and sets new standards in terms of sustainability and modern timber and hybrid construction. The innovative timber construction was developed by Implenia, ETH Zurich and the civil engineering firm WaltGalmarini. The winning project was designed by Schmidt Hammer Lassen Architects from Copenhagen and Cometti Truffer Hodel Architects from Lucerne. The building complex with a usable area of approx. 26,000m2 comprises attractive rental apartments and hotel rooms. The Rocket high-rise will have 32 floors and reach a height of 100 meters. This makes it one of the tallest residential buildings made of wood currently being planned, with the added benefit of a newly developed ceiling construction, the timber composite flat ceiling, 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 building and binds CO₂ throughout its entire lifetime. Up to 50% less greenhouse gas emissions are generated during construction compared to solid building materials.

Further sustainability aspects:

  • Hybrid timber 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

Ina Invest Website

Interest aroused? Get in touch with us!