The origins of Les Tres Torres go back to 1901 when it was just a peripheral neighbourhood known as Nena Cases on the border between the old municipalities of Sant Gervasi and Sarrià, which was mainly known as the site of the local cemetery.
Urbanisation of the area was started by three brothers from Sants, who built three 'torres', which are not towers but rather summer residences, and so the name of the neighbourhood became Les Tres Torres.
One of these 'torres' has survived and is located on the corner of Via Augusta and Carrer del Doctor Roux.
More grand houses were built over the following decades but just as in the rest of Sant Gervasi, these were demolished and replaced with upmarket modern apartment buildings in the second half of the 20th century.
Two buildings of note in the neighbourhood are El Col·legi de les Teresianes (shown below), a school completed by Antoni Gaudí in 1889, and Casa Muley Afid, built by Josep Puig i Cadafalch in 1914.
The old section of the neighbourhood is centred on the market between
Carrers Vergós and Escoles Pies, and Tres Torres was for many years
home to RCD Espanyol's Sarrià stadium until it was demolished in 1997.
In fact, being originally a gentlemanly pursuit, upper-middle class Tres Torres had a close association with football before the Spanish Civil War when a number of pitches for amateurs were located here, the most important of these being El Club Tres Torres.
Another important factor in the growth of the neighbourhood was the
Barcelona-Sarrià railway line, which was built between 1906 and 1916.
The original stations are now the Ferrocarrils de la Generalitat stations of Tres Torres and Sarrià, which provide the main public transport services for the area.