The square is named after José Ruiz de Arellano, the landowner who donated the land for the town's founding in 1730.
The plaza layout follows the classic 'Plaza de Armas' configuration common in colonial Spanish town planning.
Surrounding the square are buildings that house some of the last remaining traditional 'plateros' (silversmiths) in Argentina.
The parish church on the plaza houses religious icons dating back to the mid-18th century.
The area is the epicenter of the annual 'Día de la Tradición' celebration, which features significant equestrian parades.
Plaza Ruiz de Arellano serves as the historical and social heart of San Antonio de Areco, the oldest town in the province of Buenos Aires. The square is anchored by the Parish of San Antonio de Padua, a landmark building featuring a distinctive neoclassical facade. It remains a central hub for the town's gaucho heritage, often serving as the stage for local celebrations and traditional processions. The layout maintains the traditional Spanish colonial square design, with tree-lined paths and preserved period architecture surrounding the perimeter. It is surrounded by historic storefronts, including long-standing silver workshops and traditional leather goods vendors. As of June 2026, the plaza remains fully accessible to the public and functions as a primary gathering space for both residents and visitors.
The center of the square looking toward the Parish of San Antonio de Padua.
Visit the local silversmith workshops located directly on the streets bordering the plaza.
Walk the perimeter to view the preserved colonial-era facade architecture.
Look for the local tourism office nearby to inquire about walking tours of the town's historic houses.
Avoid visiting on early weekday mornings if you are looking for a lively atmosphere, as the town is significantly quieter than on weekends.
