His works contain the Synagogue Dresden, Bockenheimer Depot Theater in Frankfurt on the Main (with William Forsythe), the sound architecture for Frequenzen-Hz, a musical pavilion for the Museu Serralves in Porto, the exhibitional architecture for Bruno Latours and Peter Weibels’ Making Things Public at ZKM, Karlsruhe. Hirsch curated ErsatzStadt: Repräsentationen des Urbanen at Volksbühne Berlin. His last publication was On Boundaries, Lukas & Sternberg in 2006. In 1998, his work was awarded with the BDA-Preis Berlin and the Kunstpreis of the 1822-Stiftung. In 2001 he won the Deutscher Kritikerpreis and the World Architecture Award in 2002. With his research program Spaces of Production, he studied the spatial conditions of institutions for contemporary arts and developped the concept for the European Kunsthalle in Cologne.