The building was constructed in the late 19th century as a vacation home for João Santiago de Carvalho.
The owner enjoyed the house so much that he ended up living there with his wife, D. Maria Carolina, and their only son, Dinis, more often than at their permanent residence, the Paço de S. Cipriano in Guimarães.
Conceived as a castle with a more modern touch, the mansion features a square tower and incorporates various architectural styles. The neo-medieval style is immediately noticeable at the entrance, with stained glass made from colorful bottle bottoms, emblems carved in relief on the walls, and symbolic elements, such as the image of a knight painted above a door holding a shield marked with the "S" of Santiago or the depiction of fantastical creatures, like the beast that adorns the bench known as the bestiary.
The mansion showcases a blend of styles: neo-Manueline, neo-Baroque, neo-Classical, neo-Medieval, and Romantic.
The project was designed by Nicola Bigaglia, a Venetian architect, designer, and watercolorist with mastery of classical styles and ornamental processes.
Considered a historical testimony to the urban and social transformations experienced by the city since the late 19th century, the property was acquired by the Matosinhos City Council in 1968. It later underwent conservation and restoration under a project led by the architect Fernando Távora, and was requalified as a museum space, inaugurated on April 2, 1996.