The square was established in the 19th century as a market area before evolving into the primary gateway for rail transit from the south.
The adjacent station was inaugurated in 1865, originally functioning as the terminus for the Buenos Aires Great Southern Railway.
The plaza functions as a major 'trasbordo' or transfer point, linking regional train services with local bus and metro lines.
It stands at the junction of several arterial roads including Avenida Brasil and Avenida Caseros, which historically funneled traffic toward the port.
The surrounding district of Constitución remains one of the most historically significant transit-oriented neighborhoods in the capital.
Plaza Constitución serves as a major urban transit hub located directly adjacent to the Estación Constitución rail terminal in Buenos Aires. The square acts as a transitional space for thousands of daily commuters traveling between the city center and the southern metropolitan suburbs. Its design is dominated by paved surfaces rather than landscaped greenery, reflecting its primary function as a high-traffic pedestrian interchange. The plaza is anchored by the historic rail terminal building, which features a prominent neoclassical architectural style. It serves as a central landmark in the Constitución district, marking the convergence point of several major avenues. The area is characterized by heavy pedestrian density and a constant flow of activity connected to the nearby Roca Line train network.
The perimeter of the square providing a wide-angle view of the Estación Constitución historic facade.
Keep your belongings secure and close to your body at all times due to high pedestrian density.
Avoid lingering in the plaza after dark; remain focused on reaching your next transit connection.
Observe the station's exterior architecture from the perimeter of the plaza for better perspective.
Do not treat this as a leisurely public park; it is a high-traffic transit zone where loitering is uncommon.
