In 2027, Madrid will add a new key transport hub: the Conde de Casal interchange, which will connect Metro line 6 with the future extension of line 11, according to data from the Regional Transport Consortium. The infrastructure, located in Plaza de Conde de Casal (Retiro district), will be ready in the first half of 2027 and will have parking for around 750 bicycles, in line with new municipal and regional mobility policies.
The new interchange is being built under the underpass of Avenida del Mediterráneo and the A-3, at the entrance to Madrid from Valencia, one of the busiest points of entry into the capital. The Community of Madrid emphasizes that its implementation will allow for the reorganization of urban and interurban bus stops that are currently scattered throughout the area and alleviate recurring traffic jams in Plaza de Conde de Casal and on the highway itself.
What it will look like inside: bus bays, levels, and connection 6–11
The future interchange will have an intermodal area covering some 3,000 square meters and 13 bus bays for EMT city buses and intercity lines, where up to 24 routes (eight city and sixteen intercity) will be reorganized.
The Regional Transport Consortium estimates that more than 65,000 users will use the new hub every day, putting it on a par with interchanges such as Plaza Elíptica, Moncloa, and Avenida de América.
The design of the Conde de Casal interchange was not an immediate decision. From the initial studies, several alternatives were considered for how to fit the bus bays, Metro accesses, and pedestrian flows into such a complex environment as the M-30 and A-3. The proposals included more compact solutions, with fewer underground levels, and others that moved part of the bus bays to the sides of the square, but in the end, the authorities opted for the current design, which features a large central hall and six underground levels.
Construction schedule
According to official information from the Community of Madrid, the underground works related to the extension of line 11 began in February 2025 and are already more than 30-50% complete, while the opening of the interchange is set for the first half of 2027. The new hub will join the large interchanges already existing in the region (Plaza de Castilla, Príncipe Pío, Moncloa, Avenida de América, Plaza Elíptica, and Valdebebas), completing the network of major interchange points that the regional authorities use as the centerpiece of their metropolitan mobility model.