KTH Campus is the main campus of KTH located in the area of Östermalm. The main buildings by architect Erik Lallerstedt, were completed in 1917. The bells of the clock-tower were completed ten years later in 1927 at the 10 year anniversary of the transformation of the School of Mechanics to the Technological Institute. The buildings and surroundings were decorated by prominent early 20th-century Swedish artists such as Carl Milles, Axel Törneman, Georg Pauli, Tore Strindberg and Ivar Johnsson. The older buildings on the campus were renovated heavily in 1994. While the original campus was large at the time of construction, KTH very soon outgrew it, and the campus has since been expanded with new buildings. KTH Campus is still the base for most of the university's operations.
