Physics center Bad Honnef

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Hölterhoffstift, main building of the Physics Center (2018)
Physics Center, aerial photo (2018)

The Physics Center Bad Honnef (PBH) is the seat of the German Physical Society (DPG) and the Society of German Natural Scientists and Doctors (GDNÄ) in Bad Honnef near Bonn. It is best known as the location for numerous specialist conferences and other events. The main building, the so-called. Hölterhoff pin from 1906, stands as a monument under monument protection .


The physics center is on Hauptstraße (house number 5) on the corner of Meßbeuel, about halfway between Rhöndorf and the city center. Opposite is the park around the former Reitersdorf Castle , on the southern edge of which is the Edelhoff-Stift on the main street .


Hölterhoffstift (around 1910)

Hölterhoff pen

The building of today's physics center goes back to a foundation of the late Honnef businessman Otto Hölterhoff (* 1838) at the request of his wife Dorothea Elisabeth "Elly" née Böcking (* 1840) in 1897. The fortune of the childless couple was transferred to the University of Bonn . The thus created "Elly-Hölterhoff-Böcking Foundation" should be the establishment of an evangelical ladies pin can be used. In 1902, an architectural competition was organized for the monastery building along with the kitchen and gardener's house , in the course of which 14 of the 64 submitted designs were shortlisted and five shortlisted. The first prize went to the last rose design by Berlin architect Gustav Jänicke, according to which the building was finally built at a cost of 1.5 million gold marks ; The local architect Ottomar Stein was entrusted with the execution . Completion took place in June 1906, in 1908/1909 a southern wing including a single-storey connecting wing was added. Unmarried women of "higher class" between the ages of 30 and 40 were accepted into the monastery. The facility was to accommodate up to twelve of them; in fact, there were never more than eight. For girls from the bourgeoisie they ran a household school here from 1914 to 1936 with teaching kitchens, textile lessons and similar offers. From 1926 the women's apprenticeship year was also offered, from 1928 the school functioned as a business school for women and was affiliated with the Reifenstein Association.

During the First World War , the Hölterhoffstift temporarily served as a hospital . In 1939 the school was closed and the building was then used as a senior citizens' home, but was already occupied by the Wehrmacht in 1940 . After the war ended, it served as refugee accommodation. From 1947 it was used again by the university. For a time the establishment of an institute for viticulture was planned, later language courses and other events were held here. Mainly, however, the building was used as a retirement home for professor widows until the 1970s.

Physics center Bad Honnef

On June 12, 1976, the Physics Center Bad Honnef was opened in the Hölterhoffstift, sponsored by the DPG. The number of events grew rapidly. In 1980, the University of Bonn signed a license agreement with the DPG as the owner. In the same year the facade and the roof were renewed and renovated. On October 5th, 1984 the building was entered in the list of monuments of the city of Bad Honnef.

In 2003, a modern lecture hall was added with funds from the DPG, the Wilhelm and Else Heraeus Foundation , the State of North Rhine-Westphalia and the Volkswagen Foundation . In April 2010 an extensive renovation of the monastery building was started while the building was in operation at a cost of 4.2 million euros. The goals of the renovation were to raise the standard of the guest rooms, to create barrier-free access (installation of an elevator), to supplement the fire protection concept and to improve the energy efficiency . In May 2012 the restored cellar vault, which serves as a "meeting place", was inaugurated. The renovation was completed in November 2012. From September 2014 to November 2015, the DPG had a new guest house with an underground car park built on the property facing the Meßbeuel; the Wilhelm and Else Heraeus Foundation took over the construction costs of 5.7 million euros.


Front view of the Hölterhoffstift

The castle-like property is divided into a northern main building and a southern and smaller, so-called "school wing" and has an L-shaped floor plan. It has a large number of gables , bay windows and portals made of red sandstone , especially on the western front . The style of the building can be attributed to the German Renaissance or the late Renaissance . The majority has been left as it was at the turn of the century, the interiors are decorated with stucco , marble and tiles. Some of this has only reappeared under newer disguises in recent years. The lecture hall extension is a modern construction with large glass surfaces. In addition to the three-and-a-half-story main building and the two-and-a-half-story school wing, there are three other buildings in the park of the physics center: a gardener's house, a stable building - both of which are solid construction - and a guest house.

Todays use

The DPG organizes a large number of conferences, congresses and seminars in the physics center. There are also summer schools for students, advanced training events for teachers, expert committees and other events. The main house also offers overnight accommodation: 21 single and 32 double rooms are available. There is also a guest house with 40 single rooms. The Wilhelm-und-Else-Heraeus-Lecture Hall, named after Wilhelm Heinrich Heraeus and his wife, has a capacity of 100–150 people, and there are also smaller lecture halls for 60 and 30 people. Both the German Physical Society and the Society of German Natural Scientists and Doctors and the Elly Hölterhoff-Böcking Foundation of the University of Bonn have their headquarters here.

The physics center is also a branch of the Bad Honnef registry office ; The library, the winter garden, the Heraeus room or a seminar room are used as wedding rooms.


  • State Conservator Rhineland: Bad Honnef - Urban Development and Urban Structure. Rheinland-Verlag, Cologne 1979, ISBN 3-7927-0414-5 , pp. 101-104.
  • Karl Garbe (Ed.): Bad Honnefer picture book. Junge Verlag, Bonn 1989, pp. 32/33.

Web links

Commons : Physikzentrum Bad Honnef  - collection of images

Individual evidence

  1. a b List of monuments of the city of Bad Honnef , number A 65
  2. ^ Frank Heidermanns: Otto Hölterhoff. Retrieved October 15, 2016 .
  3. ^ Karl Günter Werber : Honnefer walks . 2nd revised edition. Verlag Buchhandlung Werber, Bad Honnef 2002, ISBN 3-8311-2913-4 , p. 31 .
  4. ^ Frank Heidermanns: Dorothea Elisabeth (Elly) Böcking. Retrieved October 15, 2016 .
  5. ^ Deutsche Gesellschaft für Bauwesen eV, Association of German Architects: Deutsche Bauzeitung , Volume 36, 1902, p. 404.
  6. ^ Deutsche Bau-Zeitung, Volume 38, 1904, p. Ccxii
  7. In the Honnef Hölterhoffstift once penniless women lived , General-Anzeiger, June 19, 2009
  8. a b Housekeeping School in Honnef am Rhein Elly Hölterhoff - Böcking - Foundation , Reifensteiner Verband eV
  9. a b Ortrud Wörner-Heil: Women's schools in the country: Reifensteiner Verband 1897-1997 (= series of publications of the Archives of the German Women's Movement , ISSN  0930-4444 , Volume 11). Archive of the German Women's Movement, 1997, ISBN 978-3926068125 , p. 175.
  10. Heimat- und Geschichtsverein Rhöndorf (ed.); August Haag : Pictures from the past of Honnef and Rhöndorf . Complete production JP Bachem, Cologne 1954, p. 116.
  11. From the pen to the refuge of science. The building was erected between 1904 and 1906 , General-Anzeiger , November 7, 2012
  12. ^ Physics Center Bad Honnef: Inauguration of the renovated vault and 500th seminar of the Wilhelm and Else Heraeus Foundation , press release from the city of Bad Honnef, May 10, 2012
  13. Renovation of the physics center in Bad Honnef completed , General-Anzeiger , November 7, 2012
  14. Done! - Press release from the German Physical Society
  15. ^ Heinz Firmenich (revised by Karl Günter Werber): City of Bad Honnef (= Rheinischer Verein für Denkmalpflege und Landschaftsschutz : Rheinische Kunststätten , issue 12). 3rd, revised edition, Neusser Druckerei und Verlag, Neuss 1987, ISBN 3-88094-541-1 , p. 23.
  16. registry office - maid of dates and locations , Bad Honnef

Coordinates: 50 ° 39 ′ 5.5 ″  N , 7 ° 13 ′ 10.3 ″  E