(b L?neburg, 18 Nov 1946). German architect. She studied architecture and urban planning at the Technische Universit?t, Berlin, and established an architectural practice in Berlin and Cologne in 1972. She specialized in social housing and was greatly concerned with the problem of humanizing such dwellings, especially within the context of large, crowded cities such as Berlin. Her Wohnanlage am Park (1978-80), a complex of 234 flats, shops and a restaurant in Wilmersdorf, Berlin, is built around a courtyard and backs on to a spacious park, yet each flat has a balcony and with it the possibility of a terrace-garden. The building itself exhibits a spare, almost minimalist geometry. A more fully synthesized relationship between architectural form and nature is seen in the Glashaus (1983) in Grunewald, a building with six flats, the design of which is integral with its rectangular site. In plan the building (a right-angled triangle) interconnects with the open space of a courtyard, occupying about one-quarter of the site. Balconies again provide additional space for greenery. The plans of the individual flats echo this interest in interlocking geometric forms, the two flats on each roughly triangular floor being separated by a bisecting diagonal. Variants on this dividing principle generate inventively shaped and flowing spaces within the flats themselves, which are mirror images of one another. Jachmann also designed a block of 120 model flats for the Internationale Bauaustellung (IBA; 1988-90; unexecuted), Berlin.
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