The new main concourse of Chamartín-Clara Campoamor station opened 2 June 2026, doubling high-speed capacity from 6 to 12 standard-gauge tracks and expanding the concourse from 4,000 to 18,000 sqm. Pa ACS Group · Acciona · News
Madrid Chamartín Clara Campoamor Station Expansion is a rail upgrade project in Spain, currently operational.
Brownfield station: major expansion of the existing Chamartín station complex with new underground platforms, expanded concourse, and improved multimodal connections. Renamed Clara Campoamor.
Construction began in 2019 and the project opened in 2026.
The project has an estimated investment of €557M.