Barrio Norte (Northern neighborhood) is the informal name given to a part of Buenos Aires centering on Santa Fe Avenue and the Recoleta district. Recoleta, Belgrano and Palermo, are within a region with a per capita immediately comparable with that of many European cities. Barrio Norte is the richest neighbourhood of Buenos Aires.
An unofficial neighborhood, Barrio Norte is roughly equivalent to the Recoleta district, though it generally refers to the portion south of Las Heras Avenue. Barrio Norte also includes northern parts of the Balvanera district, eastern parts of Palermo and the portion of Retiro west of the Nueve de Julio Avenue. Its population exceeds 200,000.
The name (which stems from the area's location relative to the city center) took hold when people began relocating to the area from the San Telmo and Montserrat districts following the 1871 yellow fever epidemic. An area of comfortable rowhouses during the early 20th century, it became a focus of highrise apartment development as early as the 1930s. D
Santa Fe Avenue became the preferred venue for upscale shopping in Buenos Aires during the 1950s and '60s, and the profile of the area surrounding it grew in popularity among the emerging Argentine upper middle class, particularly after the 1961 demolition of the National Pentitentiary for the creation of the 8-hectare (20 acre) Las Heras Park. Real estate agents started touting "Barrio Norte" as a distinguishing feature in their advertising, expanding its reach into Balvanera and Old Palermo.
With the advent of popular indoor shopping malls in the 1980s, Santa Fe lost some of its allure, especially with theater-goers, even though it remains a very active commercial thoroughfare. It is also served by Line D of the subte (subway) and a large number of bus lines.