Among the country houses inscribed in the parish of Sant Julià d'Altura, one of the most historic and outstanding belonged to Simó d'Arnau. Even though it was, in 1310, then classified as a "castle", it has little in relation with the characteristics of that class of building, neither in regard to its situation nor its structure. For more than a century it belonged to the Borrell family, bought in the year 1325. A son of the family, Narcis, married the heiress of the country house known as can Maduixer, within the municipality and boundaries of Terrassa. Later, due to questions of dowries and land domain, the relationship between the two families was not exactly cordial.

From the feud between the owners of can Maduixer (today can Viver de la Torre Bonica) and can Borrell (today Torre de Berardo), came about a permanent struggle to see which of the two houses could construct the most elegant house on their property. The bet was won by the first born son of the house of cal Maduixer who, years later, sold the land to the Viver family, land which would then become known as can Viver de la Torre Bonica.

The construction of the house of Castell Arnau ruined the Borrell family so completely that a son of the owner ended up working as a baker at can Viver. All this was due to the desire to construct a more sumptuous house than their in-laws. This curious story has been passed down from generation to generation.

In the second window of the house a shield can be seen, with the letters J.H.S, the inscription "Montserrat Borrell" and the year, 1575, which corresponds to its construction and the era of improvement to the land. In 1662 the property was sold for the sum of 4,500 Barcelona pounds to the Genovese, Francesc Berardo. He was the owner for no more than 26 years, but whether it be that he was a foreigner, or the fact that the strange story of the house was made public, the name Berardo has remained throughout the years.

In 1648 it was bought by Joan Martí, of Barcelona, and nothing in its structure changed until now, when the Riding club was installed there, some changes were made which give the house the typical look of a noble Catalan farmer's home.