Building located in the village of Corró d'Avall, at the foot of the old Ribes road. The complex, despite its unitary appearance, is made up of three autonomous bodies that do not communicate with each other. The central body has a basilica plan and is flanked on both sides by two rectangular buildings located perpendicularly; these two elongated bodies are also flanked by two quadrangular constructions, one on each side, making a total of four. All these buildings form a unitary façade, 124.30 metres long, with slight entrances and exits that mark the different bodies. At the back there is a rectangular courtyard enclosed by the different buildings on three of its sides, and a wall on the fourth.

The central body corresponds to the town hall, it has a basilical structure, covered on two sides, with staggered buttresses on the sides and a sinuous profile buttress in the centre, from which the bell tower protrudes. This is covered with coloured glazed tiles, forming a geometric decoration, and crowned by an iron spire.

On both sides we find the old schools for "boys" and "girls", as indicated by the signs painted on the façades. These were designed to have only one usable floor, so the floor is 2.5m high. The classrooms were well ventilated, with cross ventilation, and the courtyards were accessed by stairs leading to porches, which still exist today. Of these porches, the pillars of visible work in a helical shape stand out as a decorative element. The structure of the porches is the original iron with small forging work in the parts of the capital. At the ends of each side were the teachers' houses. Regarding the floor plan of the complex, it is worth highlighting its modernity and the good distribution of uses; the classrooms were placed, for example, with large windows to the north and the courtyards to the south, to guarantee good lighting.

Throughout the building there are openings of various typologies, distributed symmetrically, and following a modernist language. This artistic current is also present in the interior with the use of a variety of applied arts such as glazed ceramics, polychrome stained glass, tower and stairs, wrought iron railings and sgraffitos.

This building was designed, in 1912, by the architect Albert Juan i Torner, by order of Joan Sanpera i Torras, with the intention of creating a large area intended for schools for boys and girls, housing for teachers and administrative uses. The situation outside the population centre responds to the search for a neutral point, which is convenient for the four towns that make up the municipal term. The architect wanted to use the materials and construction systems of the region to facilitate his repairs. Joan Sanpera also paid for the construction of the slaughterhouse, carried out by the same architect.

It is one of the most remarkable modernist examples in the Vallès. The Casa de la Vila was located in the central body, and on the sides, the schools and the teachers' house. Although this model of a building with a dual use function is repeated in other towns such as the Ametlla del Vallès Town Hall and schools (designed by Manuel J. Raspall and built in the same period), in the Franqueses del Vallès building, it acquires a monumentality that sets it apart from the rest.