This article examines the construction history and preservation prospects of the “Bundesamtsgebäude Radetzkystraße 2” in Vienna. Built in the 1980s based on designs by Peter Czernin, the office complex was frequently criticized for its colorful, postmodern aesthetic. The architect, however, conceived the “Oktoneum” as a “total work of art” that deliberately broke with modernism by incorporating historical motifs. Despite initial controversy regarding costs and design, the building was placed under monument protection in 2024. Today, it is recognized as a significant witness to Austria’s recent political history and postmodernism. Current challenges involve improving energy efficiency and spatial flexibility. Through collaboration between the owner and the Federal Monuments Authority Austria, the goal is to ensure the long-term, heritage-compliant preservation of this landmark