The Herdern service facility in Zurich-Altstetten is used for maintenance and repairs of long-distance trains. The new 420 m long and 37 m wide hall comprises two long and one short bay and lies adjacent to an existing facility. The five new train stands have a total length of over one kilometer.

Using the modern service facility, downtimes can be reduce considerably returning trains into operation much quicker than before.

The building is fully integrated into the existing track system requiring high geometrical precision. The design and construction had to meet high standards in functionality, technical train equipment, and sustainability. Special attention was given to the design of the prominent south facade visible from many viewpoints in the city. The facility was put into operation simultaneously with the opening of the new Cross City Link in June 2014.