Determining the most expensive street in Buenos Aires is a complex task, as there is no single corridor that distinctly dominates the real estate market in terms of price per square meter. Instead, several areas combine historical prestige, limited availability of land, and proximity to parks and premium services that elevate property values. Among real estate professionals, there is a general consensus that three areas are leading contenders: Avenida del Libertador in its Porteno stretch, Calle Arroyo in Retiro, and select blocks of Avenida Alvear in Recoleta.

Avenida del Libertador has long been recognized as a showcase of the high purchasing power in Buenos Aires. Its towers, built in the 1990s and 2000s, reflect a significant investment in luxury living. This avenue not only offers high-end real estate but also serves as a symbol of aspiration for many residents. It attracts wealthier buyers seeking proximity to upscale amenities and scenic parks, contributing to its status as a premier location within the city.

While Avenida del Libertador often steals the spotlight, Calle Arroyo and Avenida Alvear are equally significant in this competition. Arroyo is known for its exclusivity and charm, often housing luxury boutiques and art galleries in an intimate street setting. Conversely, Avenida Alvear is synonymous with elegance and historical significance, drawing attention for its classic architecture and cultural heritage. The ongoing competition among these streets highlights the dynamics of the Buenos Aires real estate market and the ongoing demand for premium urban living.