School Building and Opening Hours

A contemporary school building in the heart of a historical industrial area.

Just minutes from the main station, our school building offers a state-of-the-art learning environment in what used to be part of the Sulzer industrial park.
Our students learn in generous, bright, modern and friendly classrooms and working areas. Sporting facilities and a park are in walking distance from the school and offer plenty of room to relax, play or do physical exercise. Why don’t you drop by for a visit and see for yourself?

School Building

Our school building is centrally located in the Tössfeld district of Winterthur. The extensive facilities in the contemporary building have been equipped with modern infrastructure. In addition to spacious classrooms, we also have a range of special-purpose rooms such as an art studio, a well-stocked library, a music room, and a multipurpose hall where we hold our school assemblies.

An adventure playground on our rooftop invites children to climb, play balancing games or use the swing. In our street soccer park, the older students can often be found playing table tennis, soccer or other ball games.

In the immediate vicinity of the school building, there are two spacious and modern sports halls. 
SIS Winterthur is easily accessible by public transport.


Opening Hours

At our day school, students are supervised between the hours of 7:30 a.m. and 6 p.m. The exact lesson and supervision times vary between the different levels.


Our office hours are Monday, Tuesday, Thursday and Friday from 7:30 a.m. to 5 p.m., and Wednesday from 7:30 a.m. to 2 p.m..


Holiday Calendar Academic Year 2021/22

The school adheres to the official school holiday calendar of the Canton of Zürich.

Start of academic year 23 August 2021
Fall break 9 October to 24 October 2021
Christmas break 18 December 2021 to 2 January 2022
Winter break 5 February to 20 February 2022
Spring break 16 April to 1 May 2022
Summer break 16 July to 21 August 2022
Playing outside at SIS Winterthur
Playing football at SIS Winterthur