Client: mmL Liegenschaftsbesitz GesmbH, Wien
Location: Rennweg 97-99, A-1030 Wien
Start of planning: 01/2000
Start of construction: 02/2002
Building stage 1: 12/2003
Building stage 2: 05/2004
Building stage 3 (= Completion): 07/2004
Size of building site: 27.000 m²
Usable area: 119.000 m²
Built-in area: 550.000 m³
Cost: 220 Mio Euro

Commencing with the functional parameters of a large office structure with all necessary additional facilities such as shops, parking and logistics, it was particularly important to consider urban planning parameters during the design of the overall concept. The establishment of a modern dynamic overall structure in harmony with all accompanying factors was essential. The visual and physical transparency in the basement area and the functional aesthetic arrangement of a large interconnected office structure with possibilities for expansion was the starting point for the development of a “reclining sculpture”, which by its division and coordination of building volume is to serve as a prominent sign for further development of the whole area.
Form, development of elevation and arrangement of buildings resulted from requirements for utilization and structural considerations, and always under consideration of possible integration into an overall urban planning concept. The oblong, flat form in its division is to be understood as contrast to tower-like constructions.
Considerations with regard to infrastructure complement the structure in its spatial complexity. Public thoroughfare as a stimulus is desired and is defined by cycle tracks and footpaths. The open junction from Rennweg to the area of the abattoir is to prevent a separation between front and rear and instead constitute a connecting element which, through its dynamics, provides a stimulus for further development.
These considerations produce wings (prominent core sector with central high point and internal distribution area), finger (structured, modular possibilities of expansion for various office users or the hotel), public zone (business and service units at the junction between Rennweg and the abattoir sector as a thoroughfare), and basement area (secondary utilization such as parking, house technology, store and logistics).

Photos: Paul Ott, Graz