With passion, competence and an eye for detail

We have invested about EUR 1 billion into our portfolio in recent years. But not all our investments can be quantified so easily.

Berlin-Kreuzberg, for example

“We are refurbishing more than 1,600 apartments on the Otto-Suhr estate. That includes new wooden window frames, insulation with mineral wool and new wiring in the cellars – just to give three examples. A special touch is the repair of the balconies made of clinker bricks. The old bricks are only removed when it is necessary. We replace them with bricks that are produced especially for us, to get exactly the right colour. We could just have replaced the parapets with simple metal railings, but we want to restore the original appearance of the estate. And the residents appreciate what we are doing there.”

Marko Lehmann
Project Manager Technical Project Management

Braunschweig, for example

“The refurbishment work at the Kanzlerfeld estate started with removing asbestos from the roofs and entrance halls of the 18 buildings with their 213 apartments. It was followed by the energy-saving renovation of the building shell, which will cut the estate’s total carbon emissions by a total of 65%. At the same time the entrance halls were redecorated and are now much brighter. The pipelines in the grounds were cracked in several places and had to be completely replaced, so that waste water and rainwater can drain as planned. We took this opportunity to remodel the grounds: now the rainwater flows away from the buildings, is collected in a hollow and irrigates a meadow with wild flowers, which will attract lots of insects too.”

Andrea Ortmann
Project Manager Technical Project Management

Berlin-Neukölln, for example

“We have two refurbishment projects in Berlin that are very good illustrations of the range our estates cover in terms of architecture and urban history. In the Gropiusstadt we are renovating
two tower blocks. Here the water and waste water pipes are being replaced and asbestos removed. Then there is the insulation of the facades with mineral wool to reduce energy loss. The roof is insulated using a special method, which uses flakes of loose-fill cellulose, made of old paper. These are blown into the attic under pressure to form a dense insulating layer. They provide very good thermal insulation, which is also ideal from a sustainability perspective. Overall we reduced carbon emissions in the Otto-Wels-Ring and Severingstraße by more than 40%.”

Berlin-Pankow, for example

In Pankow, more precisely in the block of houses in the Rudi-Arndt-Straße, you could hardly tell any more that Bruno Taut had been the leading architect. In addition to the renovation of the plastered facade in line with the listed building status, we are going to replace the bathrooms and central heating systems and refurbish the double casement windows. Here too, we can reduce carbon emissions significantly, by about a third. The gardens are also being redesigned to make them sustainable and bee-friendly and the old fruit trees will be pruned to give them a new lease of life so they continue to thrive for a long time. The paving stones are also covered by the preservation order and will be reused.”

Eike Petersen
Project Manager Technical Project Management