The Zeiss Planetarium in Berlin was opened in 1987 as one of the largest and most modern star theater ever. It is located on the edge of the residential Ernst-Thälmann-Park, built in the 1980s, in the district of Prenzlauer Berg. Same as the Archenhold Observatory it is part of the Foundation Deutsches Technikmuseum Berlin.

As part of building maintenance were overlapping sub-measures (repair / renovation / remodeling / renovation) controlled in the following areas:Renewal of the heat supply / heating system, renovation of the building services (Fire safety / security lighting) and more…