La Prosperitat neighbourhood starts just after the turn off to the Ronda de Dalt as you drive into Barcelona along Avinguda Meridiana and its other borders are defined by Via Júlia and Passeig de Valldaura.
The neighbourhood grew out of almost nothing in the 1920s and 1930s as a result of the growth in population that took place in Barcelona in this period.
However, although some buildings in the area date from this period, most of the neighbourhood was thrown up in response to the mass Spanish immigration from the 1950s.
The growth was unplanned and speculative and jerry built housing was crammed into narrow streets causing an uncomfortable population density.
In the 1960s, there was a famous case of when a constructor sold the same flats to buyers two or three times and the area had no state school until 1969.
Following the death of Franco in 1975, improvements began to be made and much needed space was created.
Today the main commercial area is along Via Júlia and neighbouring streets such as Joaquim Valls and Font d'en Canyelles, and because of its location and the width of its pavements, Carrer de Pablo Iglesias functions as a kind of rambla.
In the 1990s a number of underground parking lots were built and in 1998 the two squares - Plaça de la Zona Verda and Plaça de Harry Walker - were remodeled followed in 2001 by Plaça Angel Pestaña, which is now La Prosperitat's main square.
Incidentally, neither Angel Pestaña, Syndicalist leader in the 1930s, nor Pablo Iglesias, founder of PSOE and UGT, have any direct associations with the neighbourhood but their names were adopted in 1979 as a reflection of the left-wing ethnically Spanish make up of the neighbourhood.
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