 He designed a new building for the University of Leipzig, the so-called "Rotes Kolleg" in 1891/1892.In 1898/1901 he built the new building for the Deutsche Bank and later the Romanesque Revival styled Taborkirche, which was completed posthumously in 1904.Roßbach built the municipal theater in his birthplace Plauen (1889/1899), the court building for the "Amtsgericht" in Dresden (1888/1892), and the "Volkslesehalle" (public library) in Jena (1898/1902).