The basis for all the upcoming modernisation and restoration work is the monument preservation plan for the airport building created by the offices ProDenkmal and Hübner+Oehmig from 2012 to 2015. The basic conditions laid down here ensure the safety of historically valuable things and at the same time reveal scope for future developments.
Construction history documentation
In the first phase of the project, extensive archive researches and analyses were conducted and statements were made about building and usage history, architecture, construction and about materials used and handicraft technologies for all parts of the building and outer areas.
For the first time, the inventories of the former archive of Berlin airport company and construction department of the US Air Force separate so far could also be evaluated. This way, a refined chronology of construction work, reconstruction, restoration and military use of individual building areas was possible. Another important source were the files and plans in the archive of the Airport Tempelhof drawn up in the office of “reconstruction management of Airport Tempelhof” under the leadership of Ernst Sagebiel. The inventory includes almost all the original drawings of design plans and tenders and invoices with details of construction materials and handiwork technologies for the period from 1934 to 1944.
All the results were recorded in the monument information system DIS-THF and are now available to Tempelhof Projekt GmbH as the builder and to the monument protection authority and all plan partners as working base.
Stocktaking and room book
All the facades and inner rooms were recorded in the second phase of the project. The inventory was textually and photographically documented in a room book classified on the basis of source researches in construction phases and evaluated in terms of monument expertise.
Action plan and monument preservation plan
In the third and last project phase, the creation of binding regulations for further dealings with the complex of buildings took centre stage. They were compiled in a catalogue, which included recommendations for a monumental and historically-valued maintenance and restoration measures.