The new station is part of a larger urban redevelopment project along the corridor formed by the railways accessing Barcelona from the north-east, which divides the districts of Sant Andreu and Sant Martí. This project includes the rebuilding of Sant Andreu Comtal railway station, to the north of Sagrera, and the construction of a 3.7-kilometre-long (2.3 mi) linear artificial park over the railways running on the corridor, which will be put underground. At an estimated cost of €2 billion, the project is funded and managed by Barcelona Sagrera Alta Velocitat (BSAV), a public partnership made up of the Spanish Ministry of Public Works and Transport, the Government of Catalonia and the Barcelona City Council.
The idea of a new central station at this location has appeared on local transport projects since the late 1960s. Before being demolished in 2007 with the start of the previous works to the construction of the new station, a major goods station on the Barcelona–Cerbère railway, built between 1918 and 1922, had operated at the location. The groundbreaking ceremony for the new station took place on 21 June 2010, when the completion date was set for 2016. In July 2011, a 1,100 m (12,000 sq ft) Roman villa was found due to the station construction works. The Spanish Ministry of Public Works and Transport and the City Council announced in July 2013 that they had reached an agreement to modify the original project in order to reduce its cost. In June 2016, it was disclosed that the station works have remained suspended since early 2014 due to a corruption scandal involving one of the companies carrying out the works. After the works were resumed, the new station is now expected to open to AVE and local trains by 2028.
The future Sagrera railway station will be served by lines 4 and 9/10 of the Barcelona Metro. The metro stations will be located parallel to each other, sharing the same hall, on the Sant Andreu district side, to the north-west of the station building. They will be almost level with the lower level of platforms, which will be served by Rodalies de Catalunya commuter and regional rail services. The metro station complex appears on the construction project as Sagrera | TAV, where TAV stands for Tren d'Alta Velocitat (Catalan for "High-Speed Train").
^Crehuet, Xavier (31 December 2007). "Transformació urbana de Sant Andreu-Sagrera (Barcelona)" [Urban transformation of Sant Andreu–Sagrera, Barcelona]. Territori (in Catalan). Societat Catalana d'Ordenació del Territori. Retrieved 17 July 2016.
^Mercadé, Montserrat (31 December 2011). "Transformació urbana de Sant Andreu-Sagrera (Barcelona)" [Urban transformation of Sant Andreu–Sagrera, Barcelona]. Territori (in Catalan). Societat Catalana d'Ordenació del Territori. Retrieved 17 July 2016.
Julià Sort, Jordi (October 2013). Sagrera i la xarxa ferroviària de Barcelona [Sagrera and Barcelona's railway system] (in Catalan). Barcelona: Viena Edicions. ISBN978-84-8330-740-3.
