TRAFO is housed in the modernist building of a converted electrical transformer station, which was designed by George Vallentin and erected in 1912. After World War II, it was home to an electrotechnical cooperative. The building's manufacturing function was discontinued in the 1980s, after which it was put on the heritage list. Since being renovated in the years 2011-2013, the multi-level interiors of TRAFO, with its 14-metre-high and 336-square-metre main hall, have provided an excellent environment for artistic and cross-disciplinary audiovisual projects.