Langer Eugen occupant United Nations
Langer Eugen (English: "Tall Eugene") is an office tower in the Gronau district of Bonn, Germany.  It was built between 1966 and 1969.  Since 2006 it has housed several United Nations organizations.  Until the German Bundestag (parliament) moved to Berlin in 1999, the building was the primary location for the offices of the members of the Bundestag.  After renovations, eleven UN organizations moved into the building and it began serving as the center of the UN Campus, Bonn. Langer Eugen is protected as a landmark or listed building under the North Rhine-Westphalia Monument Protection Law.  It is currently the second-tallest building in Bonn and the 43rd tallest building in Germany (excluding non-habitable structures such as radio and observation towers, steeples, and chimneys).  When it was built it was briefly the second-tallest building in Germany, behind the Bayer-Hochhaus.Post-Bundestag era — UN Campus
After the Bundestag moved back to the Reichstag building in Berlin in the summer of 1999, Langer Eugen was next used by the Federal Institute for Vocational Education (Bundesinstitut für Berufsbildung) and various other national and international educational institutions.  On May 28, 2003, the federal government decided to turn the building over the United Nations for permanent use.  The required renovations were handled by the North Rhine-Westphalia state construction company and cost an estimated €54 million.  The renovations made few substantial alterations in order to preserve Eiermann's architecture as much as possible. On March 31, 2006, ownership of the property was transferred to the Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety.
With the exception of the largest office, the United Nations Framework Convention on Climate Change secretariat, all the Bonn-based UN offices were moved into the building in April 2006 (though part of the growing Climate Secretariat moved into the building in July 2010).  At the beginning of May, three large, lighted UN-emblems were added to the roof, though for technical reasons, one could not be placed on the Rhine-facing side. Also as part of the security preparations for UN occupancy, a 700-meter fence was built encircling the UN campus and an adjacent road was closed to traffic. On July 11, 2006, then Secretary-General dedicated the UN Campus.  After the renovations, there is room for approximately 675 employees in the building, though some floors remain empty for future UN institutions to occupy.  With the occupancy of the UN, the area became an extraterritorial jurisdiction, similar to an embassy or consulate.
resident inhabitant tenant dweller occupier