The listed building Invalidenstrasse 120-121 in Berlin-Mitte was constructed in 1911 housing the Hotel Baltic. Since the 1950s it has been used as a guest house for the trade unions (“Gaestehaus der Gewerkschaften”) and in the 1990s it became a senior`s residence. In future it will be used as an office building with circa. 450 work stations.

Ellis Williams Architects were appointed to design the interior for the new development.

Neither the cubature nor the outward appearance of the 5 storey, large construction building will be modified, so the sandstone façade will be preserved as prominent spotlight in the street.

From the entrance Invalidenstrasse the users will arrive in a generous foyer in the ground floor. Via staircase or lift they can reach the other floors.

The flexible remodelling will be planned in coordination with the office of monuments according to the requirements of future usage with modern large-scale work stations, meeting rooms, kitchenettes and restrooms. Gym and storage rooms will be located in the basement.

Both office workers and the public will be able to enjoy food and drinks in a café / restaurant for 40 guests on the ground floor.