Enlargement of the cinematheque facilities with about 2500m2 of works and 2 levels above ground, with strong demands of functional nature, namely the exceptionally great live loads acting on 20m spans, wich led to a structural solution consisting of a waffle prestressed slab in both directions. Services Provided: Design and Technical Assistance. Owner: ANIM (National Archive of Moving Images). Time for Completion: 10 months. Cost Estimate: 850 000€.