The 16th-century-old Lesliehof in Raubergasse 10 in the old town is acquired by the estates of the Duchy of Styria to enable teaching activities of the Joanneum, which had been founded by Archduke Johann.
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There is no longer enough room in the Lesliehof. In addition to Raubergasse 10, rooms are leased in the Lindner House in Neutorgasse and in the Mildschuh House on Dietrichsteinplatz. Soon, this alternative accommodation is not sufficient to host the increasing number of students. The Ministry of Cultural Affairs and Education purchases land in Rechbauerstrasse which formerly belonged to Baron Mandell. Professors Josef Horky and Johann Wist assume planning of the Alte Technik – the original building of the new Imperial and Royal Technical College. The first ground-breaking ceremony takes place on 26 November 1884. The building is opened on 12 December 1888 in the presence of Emperor Franz Joseph I.
Besides the Alte Technik, various new structures are built on the former Mandell land. This development starts in 1965 with the construction of a faculty building for civil engineering in Technikerstrasse which is occupied in 1969.
Parallel to the construction of the main library according to the design of a team headed by Professor K. R. Lorenz, an extension is built in Technikerstrasse. Located on the south end of the plot at the fork between Technikerstrasse and Sparbersbachgasse, it is the first independent university library building in Austria. In 2012 the University Library building was comprehensively modernised.
In 1983 Architect Günter Domenig wins the competition for the building extension for the institutes of architecture and civil engineering in Lessingstrasse 25. Public protests finally lead to a very reduced version of the draft. Only in October 1993 do the first institutes move in. A glass body characterises the entrance area, and the relatively narrow hall with surrounding galleries on the individual floor levels is adorned by the “Wetterwand” by artist Christian Ludwig Attersee.
Increasing numbers of students and the newly established professorships, particularly in mechanical engineering, architecture, civil engineering and natural sciences, at the end of the First World War lead to more space requirements. In 1921, the ground-breaking ceremony is carried out for the new building on the corner of Brockmanngasse and Kopernikusgasse. In 1928, the Faculty of Mechanical Engineering and an electrical engineering institute moves into the new building.
The shortage of space for the natural sciences in the Alte Technik has become unacceptable. After a three-year planning phase, work begins on the chemistry building designed by Prof. Karl Raimund Lorenz in Stremayrgasse in 1954. In 1961 the Chemistry Institute of the Technical College moves in.
The promotion of hydroelectric power after the war leads to a strong increase in the number of physics experiments using models at the Technical College of Graz. It is agreed that a new building for the Institute of Hydraulic Engineering which was built in 1847 will solve the difficult situation. In 1960, it is decided to go ahead with the construction, and the ground-breaking ceremony for the new building in Stremayrgasse with attached hydraulic engineering laboratory takes place. The opening takes place on 26 November 1964.
Construction work for the physics building planned by Eduard Praschag on the former Schörgelhof grounds in Petersgasse begins in 1970. The building is completed in 1975.
The architect couple Michael Szyszkowitz and Karla Szyszkowitz-Kowalsksi win the competition to design the biochemistry/ biotechnology building at the crossroad between Mandellstrasse and Schörgelgasse in 1983. Construction begins in 1985 and lasts until 1990 due to a funding shortfall.
The extension for mathematics and geodesy is originally also meant to house architects, civil engineers and surveyors and to be built on the Mandell grounds between the Alte Technik and the library. But a citizen’s initiative prevents the surveying technology structure from being built on the home area. Demolition of a heating house finally creates the necessary space on the Schörgelhof site. This means that the extension for mathematics and geodesy designed by architects’ cooperative Günther Domenig and Hermann Eisenköck can be built in Steyrergasse. It is occupied in 1990.
A building for biocatalysis is added to the Neue Technik Campus in the Petersgasse area in 2003. The award-winning construction designed by architectural firm Ernst Giselbrecht and Partners was occupied in early 2004.
After 50 years, the chemistry building in Stremayrgasse is no longer fit for purpose in terms of teaching, research and work safety. Altogether, such extensive building measures are necessary that a refurbishment during operation is no longer possible. A replacement building is needed. In March 2008 the ground-breaking ceremony for the “new chemistry building” takes place, and the building is opened in October 2010. A modern lecture hall centre and communication areas for students supplement premises for institutes and laboratories. There is also a place for art in the new chemistry building on the roof terrace: Constantin Luser’s “Molekularorgel” is made of 35 interwoven wind instruments.
Hardly has TU Graz occupied the replacement chemistry building and vacated the old chemistry building in Stremayrgasse, than the latter is temporarily used by the University of Graz. The beginning of 2014 marks the start of intensive refurbishment and rebuilding which is to last one and a half years. In October 2015 the previous old chemistry building is opened under the new name of biomedical engineering and known as the BMT building (biomedizinische Technik). Protected as a historic monument from the 1960s, only the outer shell of the building remains after conversion by architect Hans Gangoly. The interior of the building has been completely changed. Lecture halls, laboratories and learning spaces, the newly organised campus library, an IT service point and IT learning centre, communication and meeting areas for students and an attractive rooftop restaurant with a 270-degree panoramic view of Graz transform the BMT into a new campus meeting place. Five institutes and working groups of the Faculty of Computer Science and Biomedical Engineering find a new, modern home.
The emerging development of the field of electrical engineering at TU Graz after the Second World War leads to problems with accommodating the institutes. In 1964 plans for the construction of a high-voltage engineering building are given the go ahead after suitable grounds have been found in the approx. 150,000 m2 Inffeld area in the Graz St. Peter district. From 1970 onwards, structures with big production shops and test halls are built bit by bit along Inffeldgasse on the south side of the area. Architects Ignaz Gallowitsch and Hubert Hoffmann are responsible for architectural planning. In 1972, the building complex with the attached high-voltage hall is handed over to the electrical engineering institutes.
The high-voltage hall – a distinctive eye-catcher on the Inffeldgasse campus – is renamed the Nikola Tesla Laboratory in 2006. The gigantic hall whose doors measure 14 x 14 metres is suspended from an outer steel frame and is extremely well shielded.
The construction of the mechanical engineering institutes on the Inffeld grounds proves to be more difficult. In 1967 architect Helmut Dorner wins the architecture competition, and the ground-breaking ceremony for the first tract of the institutes takes place in 1970. After extensive changes are made to the plans in the mid 1970s, the first mechanical engineering institutes move in in 1988.
Efforts going back many years to unite the scattered IT institutes finally result in the construction of a new complex designed by architect team Florian Riegler and Roger Riewe which is opened in 2000.
The Inffeldgasse Campus continues to grow. After 14 months of building work the Study Centre is opened in 2000. The new building at the centre of the campus was designed by architects Szyszkowith/Kowalski and host two institutes, a canteen with café, a teaching materials and teaching aids shop, laboratories and offices of the Buildings and Technical Support service facility.
The BTZ in Inffeldgasse was built in three construction phases. The BTZ houses laboratories for testing materials and components, and structures with their associated workshops and offices. Architectural firm Kampits & Gamerith take over responsibility for the architectural planning.
The Frank Stronach Institute, which was established in 2003 as a cooperation project between TU Graz and Magna, receives its first building in Inffeldgasse 11 after less than one year’s construction.
With an area of 1,500 m2, the nanoversity of TU Graz is opened in November 2011. The house for children in Petersgasse 136 is open for children of all ages – of both students and staff – and follows modern ideas of education. There is a strong emphasis on natural science and technology as well as gender and diversity. The children can pursue their interests irrespective of gender. Another feature is the “Marie Curie room” where there is a research laboratory especially for children and a workshop for big and small.
In November 2012 another new complex opens its doors on the Inffeldgasse Campus. With its three buildings and a car-free “main square” with seating, drinking fountain and free WLAN, the PTZ makes a strong mark on the campus. The PTZ scores highly in terms of energy efficiency. Some 100 geothermal probes, each buried up to 120 metres deep in the earth, supply power for heating or cooling.