
Project | Renovation, conversion and expansion of a former post office building and the construction of a new courtyard building to create a modern office ensemble |
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Client | Glockenweiß GmbH |
Size | Approx. 5,800 m² GFA in total |
Time Frame | 2018–2021 |
Services | HOAI service phases 1–8 |
Status | Under construction |
Visualisation | Tomi Maslovarić |
Photos | Thomas Heimann |



A former post office in Berlin-Tegel is currently being completely renovated for conversion into a modern office building. In the rear courtyard, a new five-storey building is being constructed as a contemporary annex to the existing listed building. The future spatial programme for the ensemble includes traditional individual offices along with a number of open coworking areas. In the former counter hall of the old building, the insertion of a mezzanine creates additional floor space and gives the room a special quality. The attic is also being built out and transformed into a versatile work environment.
A high degree of site utilisation is desired for the new building. The challenge was to configure the relatively large volume in such a way that the courtyard does not seem cramped. A slightly asymmetrical shape with cantilevers above the ground floor makes this possible. Window openings of different sizes give rich variety to the façades and enhance the building’s distinctive appearance. Its special hallmark is an elegant exterior made of jet-black larch that has been made durable and resistant by charring the surface.







