Building with about 30 000m2 in 21 levels, in Parque das Nações, Lot 1.12.02, with current uses of parking, trading and offices. The chosen structural solution was a waffle slab with ponctual prestress. Buried area with anchored retaining walls, with a phased construction simultaneous with the excavation progress. Services Provided: Structural Design and Technical Assistance. Owner: Expocomitur / Parque Expo. Time for Completion: 15 months. Cost Estimate: 3 500 000€.