The first phase comprises of three actions which aim to achieve more space passengers and reorganise mobility flows. The first action includes the expansion of the station on the side of the square in front of the station, Països Catalans, with a new high-speed boarding hall to respond to the increase of the traffic and will meet future demand, providing two different departure and arrival areas. A new access will be made from the square to the Rodalies de Catalunya lobby (for commuter and regional rail system), which will organise the exit flows, creating a new area, tour and commercial area.
The station building will expand by more than 30% on the plaza side incorporating a new departure lounge delivering increased space for passengers which use commuter and regional, long distance and high-speed transport services. Active and last-mile mobility will also be promoted, with new access to the station for bicycles, scooters and pedestrians, thanks to the large pedestrian areas that will surround the terminal.
In this phase, three new communication nodes will be built with the high-speed platforms and three upper levels will be created, on which another floor will be located with a boarding area and direct access to platforms, new high-speed waiting rooms and spaces forinternal use.