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Sisters Towers – La Défense

Structural design and engineering

Preliminary and detailed design, tender documents, works supervision and building inspection

Unibail

France

Two towers 219 m and 121 m high, connected by a footbridge.

Architect: Christian de Portzamparc.

BIM

Designing technical facilities to meet ambitious objectives in terms of individual comfort and energy performance

Surface:

93,300 m² gross floor area

120,390 m² gross internal area

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