A defining urban planning element of the Freudenberg Museum of Technology is the relocated former sawmill hall. It is the largest and tallest structure in the ensemble. A possible expansion must take this into account. We are not interested in a new beginning, but in a sensitive and appropriate further development of the existing structure and the hall. The focus is on the appreciation of what is available and the work behind it. That does not rule out a self-confident interpretation of what is available. Further development needs a strong structural symbol. This is taken over by two cantilevered roofs that are symbolic. Formally, the extensions are derived from the traditional building type. The saddle roof of the workshop and the towed roofs of the extension fit effortlessly into the existing structure. The three additions are formally related to each other in order to strengthen the ensemble effect of old and new and to avoid the heterogeneous structures from falling apart.