The Berlin developer probably didn’t know what was in store when he decided to remove a few balconies and repaint his building pink. But once , and Daniel Libeskind decrying the building’s fate in the local newspaper Berliner Morgenpost.

The senate’s decision has repercussions that go well beyond the rescue of one building. The Kreuzberg Tower was constructed as part of the citywide International BauAufstellung (IBA) program of 1987 that invited notable architects the world over to design low- and middle-income housing and infrastructure in Berlin’s neediest neighborhoods. (The Kreuzberg Tower was close to the notorious border station for the then-divided city, Checkpoint Charlie.)

Many IBA buildings by the likes of James Stirling, Alvaro Siza, Frei Otto, Aldo Rossi, and Peter Eisenman— to name but a few of the dozens participating—are much in need of repair and, located in gentrifying neighborhoods, a constant temptation to developers. Just short of designating all of them landmarks, the Senate pronounced that plans to alter any IBA 1987 buildings must undergo close scrutiny by the city’s building department and appropriate historians before proceeding. The Kreuzberg Tower is to be not only restored, but the landscape completed as Hejduk originally envisioned.

The 14-story tower and two five-story wings with their eyelid sun shades and nose-ish balconies capture not only the architect’s explorations into the mythic resonance of anthropomorphic geometries but also represent, along with many other IBA buildings, postmodernism at its inglorious height in the 1980s. “The senate understood that this wasn’t just about my father’s building, but the entire heritage of a movement that needs to be preserved,” Hejduk said.