Built in 1897/98, the Kornversuchsspeicher or Grain Test Silo was created as a conceptually ambitious experimental prototype for the grain storage required to supply the over one million inhabitants of Berlin. After being used by a string of haulage companies, it was left vacant. However, the protected monument has been turned into an attraction in the Europacity development area opposite Berlins central station in 2023. Its spectacular renovation by AFF architects, which received the Architekturpreis Beton award, turned the industrial structure into a mixed-use building hosting offices, a gallery, and a restaurant. Berlinbased photographer Harf Zimmermann, cofounder of the internationally renowned OSTKREUZ agency, documented the renovation project over the course of five years with his analogue largeformat camera. Some of the striking photographs of different construction stages lend the process the appearance of an archaeological dig, while others give the impression of a completely new construction project. The photo essay is complemented by an extensively researched and generously illustrated article on the buildings history by Hans Georg Hiller von Gaertringen. Presents an exceptional longterm photographic documentation project by the renowned architectural photographer Harf Zimmermann Effectively contextualized study of the awardwinning renovation project, (Architekturpreis Beton and Deut sche Architekturpreis 2023) Features valuable archival material on the buildings history, as well as blueprints for its renovation

The photographer Harf Zimmermann was born in Dresden in 1955 and works and lives in Berlin. From 1982 to 1987, he studied photography under Professor Arno Fischer at the Academy of Fine Arts in Leipzig. In 1990, Zimmerman was one of the seven founders of the OSTKREUZ photography agency, where he remained until 1999. In addition to his artistic documentary photography on large and ultra-large film formats, he began specializing in panoramic photography (among other things) in the 2000s.