Construction on the fourth lot included the central building for the workshops. Building 11 is located at the centre of the courtyard built on the second lot, which concerned the buildings for the General Services (Building 6) and for Tobacco processing (Buildings 4 and 5). The new Workshop occupies a compact volume on a single floor, and reflects the finishing on the two large adjacent buildings. In fact, the newer building has the same brick cladding, and this continuity is accentuated by the strongly rounded edges, which recall the expressionist tendencies of Northern European rationalism.
The old workshop that was used for the maintenance of the machinery will be the at the heart of the new Central Square, alive with commercial, cultural and catering activities.