Four architects - Beno Aeschlimann, Stefan Hess, Reto Mosimann and, since 2012, Hanspeter Stauffer - are responsible for the Biel office Spaceshop. Since 1998, it has produced an impressive series of highly exciting buildings and renovation projects. They include the extension to the Sonnenhof Primary School in Bern, which reinterprets the repertoire of the 'Solothurn school' in a new and sensitive way. Text in English and German.