Complex consisting of a large farmhouse, a tower, a chapel and other adjacent outbuildings. The large house has a ground floor, two floors and an attic. The roof is double-sided with the ridge perpendicular to the façade, which is organised symmetrically through a central axis. On the ground floor, the semicircular arched entrance door opens in the centre and, on both sides, low-arched windows open. On the first and second floors, balconies without overhangs open in the same axis as the openings on the ground floor; the jambs and lintel are large ashlars. In the attic there is a gallery of semicircular arches and an oculus at each end. Above the gallery, another window opens in the centre.
The tower is cylindrical. The lower part is wider than the rest of the tower and the upper part is topped by battlements. Along the cylinder windows open at different heights with jambs and lintels of stone ashlars. Inside the tower there is a water tank.
The chapel has a semicircular nave and apse. Externally, the walls are decorated imitating the Romanesque style, with blind arches and Lombard bands. A semicircular arched door opens on the façade, above which there is a small rosette. The façade is crowned by a bell tower with two eyes.
The name "Torre Marimon", used to refer to the heritage that existed and still exists in Caldes de Montbui’s landscape, appears for the first time in the 16th century.
The Marimon family, which gave its name to the house and the area, was a wealthy family that extended its properties to Plegamans and other neighbouring towns such as Palau, Palaudàries and Bigues, during most of the Middle Ages. Their relationship with Caldes did not begin until the second half of the 15th century (Romeu de Marimon is documented in 1461 and 1498).
Before belonging to the Marimon family, the tower was known as the "Mas Coromines" or as the "Tower of Monsignor Molas".
After successive vicissitudes and changes of hands during the 18th and 19th centuries, in 1921 it was bought by the Mancomunitat of Catalonia, chaired by Enric Prat de la Riba, to install the Higher School of Agriculture of Catalonia. In order to adapt the place to this purpose, new buildings were built, the farmhouse was rebuilt and, in the place where the tower was, a new one was made, while a water tank was placed at the top.
The chapel has been documented since 1342 and belonged to the Marimon manor. When the whole complex was refurbished to turn it into an agricultural school, this chapel was also restored.
