Alella wines are produced in Maresme county of Catalonia, located on the Mediterranean coast about 15 kilometers to the north of the city of Barcelona. Like other regions of Catalonia, wines have been produced in this area since the time of the ancient Romans.
It is one of the smallest DOs in Spain as the vineyards have been encroached upon by urban and tourism development. Currently it only covers one third of the area that it covered in 1956 when it was established, despite a territorial extension in 1989.
The most interesting feature of Allella is the distinctive topsoil which is known as sauló in Catalan. It’s a white granite base of sand which is very porous and retains heat very well. This helps the grapes to ripen, while the low water retention properties are compensated by the local humid microclimate.