 The portfolio "Untitled" marked the occasion.In the mid-1980s, Abraham won the architecture competition to build a mixed-use residential and commercial complex, IBABERLIN, in
Friedrichstraße 32-33 (1985–88), a major street in central Berlin, which forms the core of the Friedrichstadt neighborhood.The area was originally constructed to extend the city center, during the first half of the 18th century, in the Baroque style, and after significant damage during World War II, and then partly rebuilt before the division of the Berlin Wall.