Region Olten
In the course of the years from 1980 to 2003, a large number of school and commercial buildings were constructed on the former site of the von Roll foundry in Olten, transforming the former industrial quarter into a modern and attractive part of the city.
The centre of the complex is the new "Sälipark" building. The shops, part of the offices and a doctor's practice were opened on 27 March 2003 with many events. At the end of August 2003, the University of Applied Sciences Solothurn-Northwestern Switzerland moved into the remaining premises in the new "Sälipark" building.