Building 3 is the eastern part of the building complex "Westflügel" which was built by the IMET in 1953 directly at the Beutenbergstraße. The building is partly used by the HKI as well.

Here you can find:

• the lecture hall
• seminar room „Peroxisome“
• the research groups Kaether, Morrison, von Eyss, von Maltzahn