In the early 20th century, several houses in the Modernist style were built in Arens, of four or more floors, with wrought-iron balconies and a gallery with arches on the upper floor. Within this artistic movement, the buildings combine aesthetics with functionality, with abundant decoration, above all of vegetal elements, integrated into the architecture. Casa l'Escolà is the most outstanding Modernist work in Arens for its decorative abundance and for being the tallest house in the village, with five storeys. It follows the style of Catalan Modernisme, whose greatest exponent was Antoni Gaudí, as its author was the Barcelona architect Enrique Isern.
The separation between each floor is marked by an imposta which on the ground floor features geometric motifs.