CO2-neutral commercial building with ramp and roof garden
The Green Spin construction project in Winterthur has started with the dismantling of the former Stewi headquarters in Winterthur-Grüze with a focus on recycling. The fully sustainable service building was initiated and planned by Felix Partner Architektur Design.
Felix Partner Architektur und Design from Zurich have symbolically handed over the first dismantled components of the former Stewi headquarters in Winterthur-Grüze to their customers for recycling at the start of construction of their Green Spin project in Winterthur. According to a press release, most of the demolished parts will not end up in landfill, but will be reused in other buildings. The demolition concrete will also be shredded and used to produce recycled concrete.
A service building for commercial tenants will be built on the same site. Companies that also focus on sustainability themselves are set to move in from late summer 2027.
The building shell is planned as a CO2-neutral timber construction. A green inner courtyard and a roof garden will also be realised. Photovoltaic modules on the façades and wind turbines will supply green electricity, while geothermal energy will be used for heating. The building is to be certified in accordance with the international BREEAM sustainability standard.
The centrepiece is a ramp that is up to six metres wide and rises gently around the inner courtyard. It provides access to the rental areas on all levels, including by bicycle. The commercial, office, production and sports space will be complemented by catering outlets and individual retail outlets.
“I hope this project will inspire others to think big and act boldly,” said FDP National Councillor Andri Silberschmidt in his speech at the start of construction. Jens Andersen, Winterthur’s master builder, emphasised that the project “fits in perfectly with our strategy of sustainable urban development”.