Remodel of the lobby and roof of an office building at Paseo de la Castellana 85, Madrid

Supply of materials and execution of works for a provisional lobby with access from Azca, and the definitive lobby with access from Paseo de la Castellana; installation of acoustic screens and horizontal louvres on the roof to conceal installations.

The remodelling works had to be carried out with the new tenants already occupying the building and the offices up and running. The project was divided into two parts: the creation of a new lobby accessed from Paseo de la Castellana, which necessitated the construction of a provisional lobby with the entrance on Azca to facilitate access and evacuation during the works; and the installation of louvres on the roof to protect the installations.

In the first phase, Empty was commissioned to demolish part of the existing facade and create openings in the floor slabs on the first and second levels to implement the structural reinforcement required for the installation of glazed double-skin facades on the building exterior and entrance. Having completed the structural phase, Empty then made all the finishes for the new lobby while coordinating the installation works.

For the roof intervention, the first step was to connect the perimeter reinforced beam to the existing floor slab. This structural reinforcement was necessary to assemble the vertical metal structure supporting the acoustic screens and the horizontal aluminium louvres that conceal the existing installations. These works were carried out in two phases so as not to interfere with other interventions planned as part of the building remodel.